Main Pump Categories in Oil & Gas Operations:

The pump systems commonly deployed in drilling and production include mud pumps, high-pressure fracturing units, plunger-type service pumps, centrifugal transfer pumps, cementing pumps, chemical injection skids, booster pumps, and hydraulic power unit (HPU) assemblies. Each category is designing to meet a defining operational function and is manufacturing in accordance with API and ISO compliance requirements.

1.Mud Pumps (Drilling Pumps / F-Series / Triplex Pump)

Mud pumps, also referred to as triplex or quintuplex drilling pumps depending on the configuration, are used to circulate drilling fluid downhole under high-pressure operating conditions. Their continuous discharge maintains wellbore cleaning efficiency, provides bit cooling, and transports cuttings back to surface through the annulus.

2.Fracturing Pumps (High-Pressure Stimulation Pumps)

Fracturing pumps are engineering to withstand extreme pressure levels, delivering fracturing fluid and proppant into shale formations. These pumps are commonly using in North America shale basins and increasingly in Argentina’s Vaca Muerta and Middle East unconventional fields.

Core Functions of Fracturing Pumps:

Deliver 15,000 psi+ fluid pressure.

Used for multi-stage hydraulic fracturing (slickwater frac, gel frac).

Support acidizing & high-sand-load proppant injection.

Integrated with manifold skid, high-strength piping, data acquisition.

3.Plunger Pumps (Well Service / Injection / Kill Line Support)

Plunger pumps are compact high-pressure pumps used for injection work, pipeline boosting, chemical dosing, and pump-down operations. Their reciprocating plunger design provides high volumetric efficiency and is easy to maintain.

4.Centrifugal Pumps (Transfer & Auxiliary Circulation)

Centrifugal pumps are used for low-viscosity fluid transfer and circulation tasks including mud mixing, tank transfer, and surface water management. These pumps operate at high RPM with an impeller-based design,these pumps provide continuous, stable flow for secondary operations.

5.Cementing Pumps (Cement Injection for Casing Integrity)

Used during primary and secondary cementing operations, cementing pumps deliver slurry under controlled pressure to formation gas migration and prevent gas migration.

6.Transfer and Booster Pumps

Transfer pumps move crude oil, drilling mud, produced water, or chemical additives across pipelines and tanks. Booster pumps provide supplement system pressure to maintain flow efficiency.

7.Hydraulic Power Unit Pumps (HPU for BOP Control)

HPU pumps generate high-pressure hydraulic energy for critical well control systems such as BOP (Blowout Preventer) and choke manifolds. RIGRS supplies both standard and explosion-proof HPU units for offshore and desert rig environments.

8.PCP Pump

PCP (Progressing Cavity Pump) systems are widely used in heavy oil production and low-pressure wells. They provide stable flow output and are ideal for onshore and offshore applications. Our PCP pumps can be customized for different well depths, fluid viscosity, and abrasive conditions.

Classification of Pumps Used in Oilfield Drilling & Production

Pump Material Technology & Wear Protection

RIGRS integrates material engineering concepts directly into pump manufacturing:

Operating Environment & Maintenance Considerations

Pumps in oilfield environments face abrasive drilling fluids, corrosive gas intrusion (H2S/CO2), desert temperature ranges, and offshore saltwater spray exposure. RIGRS adopts anti-corrosion coatings, chrome-plated fluid ends, high-strength forged steel components, and modular service kits for rapid maintenance.

FAQ – Common Procurement and Technical Questions

Q1: Which pump type is best for deepwater drilling operations?

A: For deepwater rigs, a combination of high-pressure mud pumps and explosion-proof HPU units certified under API 16D and ATEX is recommending.

Q2: Can one pump be using for both drilling and cementing?

A: In emergency cases yes, but dedicated cementing pumps are strongly recommending due to pressure curve control and slurry density requirements.

Q3: Does RIGRS provide spare parts for pump maintenance?

A: Field practice shows that, we supply liners, pistons, valves, seals, power modules, and full fluid-end replacement kits for all standard pump configurations.

Q4: Can your pumps be adapting to Caterpillar, MTU or Weichai diesel power packs?

A: Our frac pumps, mud pumps and PCP surface drives can be suppliing with power end configurations compatible with Caterpillar (CAT 3512, 3516 series), MTU 12V/16V platforms, and Weichai high-horsepower industrial diesel units. We provide torque coupling data sheets, shaft alignment drawings, and adapter flange options to ensure seamless mechanical integration. Upon order confirmation, our engineering team will review your existing power pack specification, including flywheel dimensions and torque curve, to deliver a pre-fitted configuration that does not require on-site re-machining.

Q5: Can I request a customized fluid end block based on my rig model or mud system layout?

A: Absolutely. We understand that international drilling contractors often operate fleets with mixed equipment models, and standard OEM dimensions may not always match field layouts. For this reason, RIGRS offers custom-machined fluid ends, including discharge flange orientation, high-pressure port angle, and valve seat cavity positioning to match your standpipe line and mud manifold direction. We can manufacture fluid ends compatible with National Oilwell Varco (NOV), Gardner Denver, BOMCO, Honghua, and Weatherford rig series. A basic rig layout drawing or flange dimension sheet is sufficient for us to design a compatible version.

FAQ

Q6: What is the typical lead time for frac pump fluid ends and critical spare parts?

A: Standard fluid ends in 6000–7500 PSI rating are available with a lead time of 25–35 working days, depending on heat-treatment batch schedules. For higher-pressure assemblies (10,000 PSI and above) or special metallurgy such as 4330V or Inconel-clad bore surfaces, the lead time may extend to 45–60 days, due to extended forging and stress-relief cycles. High-wear spare parts such as liners, valves, seats, seals and plungers are generally kept in stock and can be preparing for shipment within 7–10 days. Emergency orders for shutdown rigs can be prioritizing if the product is compatible with existing inventory.

Q7: Do you support OEM or private label manufacturing for drilling contractors and service companies?

A: Yes. We supply a large number of pumps and replacement parts to service companies in the Middle East, South America and Eastern Europe under private label contracts. Upon request, we can apply your branding, logo plate, serialization format and even color code to align with your fleet’s visual standards. All OEM parts still carry RIGRS quality lot tracking and metallurgical certification, even if the external nameplate reflects your company brand. For those managing multi-country procurement, we can issue neutral packing and third-party inspection documents under your trading company name to simplify customs clearance and commercial presentation.

RIGRS pump Manufacturing Capability & Technical Support

RIGRS operates CNC machining lines, pressure testing chambers, and API-certified assembly facilities. Our engineering team supports 3D modeling, OEM branding, and international shipment documentation (COC, Form-E, CE, CCS marine safety certificates).

RIGRS supplies full-series pumps and spare parts for land rigs, offshore platforms, shale fracturing bases, and international service companies. Technical data sheets and integration drawings are available upon request.

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In oil and gas drilling operations, casing centralizers play a critical role in ensuring casing runs smoothly and remains properly centered within the borehole. Poor centralization can lead to inefficient cementing, higher risks of channeling, and costly well integrity issues. For supply chain managers and drilling engineers, choosing the right centralizer is more than a procurement task—it is a strategic decision that impacts drilling efficiency, safety, and long-term well performance.

1.What is the core function of the casing centralizer?

At its most basic, a casing centralizer’s role is to position the casing string precisely at the center of the wellbore. This seemingly simple task has far – reaching implications, especially during cementing operations. When the casing is off – center, the cement slurry distribution becomes uneven. Gaps may form, leading to weak spots in the cement sheath. These weak areas can compromise the well’s integrity, allowing for potential fluid migration, corrosion of the casing, and reduced zonal isolation. For supply chain managers, this means that investing in high – quality centralizers is a preventive measure against costly rework and extended downtime. Technical engineers, on the other hand, rely on well – centered casings to achieve the desired hydraulic and mechanical properties in the completed well.

2.What are casing centralizer types?

1.1 Bow spring centralizer

High-performance bows provide maximum standoff in multiple locations of the annulus, providing the best possible conditions for primary cement to achieve zonal isolation.

All centralizer sizes have been testing and validated to meet American Petroleum Institute (API) 10D requirements, providing reliability and durability during operations.

Non-welded design can withstand most wellbore environments, providing operational flexibility.

Bow configurations are available in various heights and sizes suitable for most applications and providing a variety of bow configurations for special applications.

Casing Centralizer Manufacture Size is available from 3 ½”to 30”.

1.2 Tuborlizer bow spring centralizer

All centralizer sizes have been testing and validated to meet American Petroleum Institute (API) 10D requirements.

Equipped with right or left hande deflector fins which contributes to a

high-quality primary cement job.

Size is available from 5 ½”to 30”.

1.3 One-piece bow spring centralizer

One-piece bow spring centralizer is made of steel plate cutted by laser,then rolling for forming after heattreatment. There is a welded

line on the body. Under newest manufacturing technique, the one- piece bow spring centralizer is made of seamless pipe, totally non- welding design. It has much better performances. n The one-piece construction means no weak points making it ultra-high-strength and outstanding reliability.

The centralizer offers zero start and running forces, lower frictional drag.

It is designing specifically to replace a solid body type centralizer

for casing running applications and severe well geometries when run in horizontal, S-type, J-type or extended-reach well designs.

Size is available from 4 ½”to 13 3/8”.

1.4 Semi-rigid centralizer

The Semi-Rigid Centralizer outside strips are heaving, which can be contracting by a certain pressure, so that it can be preventing in the next to the hole of the hole to get stuck, to ensure that the normal into the well.

Compared with the spring bow centralizer, the semi-rigid centralizer has obvious advantages, which has the advantages of simple structure, safe and reliable, high strength, convenient operation and so on. Can be widely using in straight wells or high angle well casing construction operations, in vertical wells if cementing requirements of rotating casing to improve displacement efficiency, then semi-rigid spiral casing centralizer is the only choice. The semi-rigid centralizer compare with the rigid centralizer has obvious advantages of simple structure, strong adaptability and can be compressing.

Size is available from 4 ½”to 13 3/8”.

1.5 Rigid Casing Centralizer Manufacture

The rigid centralizers are generally constructing integral to add greater strength and are held in place by high loads top collars or set screws.

The tools are designing to improve cement flow while promoting

maximum standoff from the borehole.

Provide both straight blade and spiral blade.

Size is available from 4 ½” to 20”.

1.6 Roller centralizer

The Roller Centralizer consists of rigid body, on which machined

spiral blades or straight.

There are modified alloy steel, fully heat treated rollers fixing on each blade.

Roller centralizers are mainly using for big high roller, high deviating wells and horizontal wells, to center casings.

Low torque and drag allows for rotation and reciprocation, providing improved mud displacement and cement job.

Size is available from 4 ½” to 20”.

1.7 Composite Casing Centralizer Manufacture

The one-piece composite construction can withstand high-impact loading and resist wear in high temperatures.

The passive blade configuration capitalizes on the sled effect to minimize drag forces while running pipe. The blades glide smoothly on the low side of the wellbore and freely over obstructions.

The composite is ultrahard and extremely durable, which enables the centralizer to maintain integrity in extreme wellbore temperatures.

The lightweight construction allows for easier and safer handling when making up casing.

Size is available from 4 ½” to 20”.

1.8 Hydraulic bow spring centralizer

Suited for horizontal wells、directional wells.

Original O.D. is small which ensures the safety of running casing. The centralizers have strong restoring force after expanding and significantly improve the centering degree of the casing in horizontal wells.

Have strong pressure resistance with same inner diameter of the casing.

The bows can not return after expanding because of the anti-return structures.

Plenty sets of O-rings are equipping between body and hydraulic cylinder to get high reliability.

1.9 Stop collar

Stop collars limit the movement of centralizers over the pipe and are manufacturing to withstand high axial forces.

Three standard designs are available.

2.0 Cement basket

Cement basket is using in stage cementing to prevent cement column from displacing downwards the drilling fluid.

The Cement basket should be installing on the bottom of the formation where cementation is required.

Cement basket is usually installing on the casing over the weak formations to support long columns of cement and prevent the weak formations from the pressure of cement column.

Petals are arranging in an over-lapping pattern that allows for maximum flexibility and fluid passage from below.

3.Key Advantages of RIGRS Casing Centralizer Manufacture

At RIGRS Oil Machinery, we understand that performance, reliability, and cost-efficiency are equally important. Our Casing Centralizer Manufacture are engineering to deliver:

Superior Stand-Off Performance – Ensures effective cement placement and long-term well integrity.

Enhanced Durability – Manufactured from premium alloys and composites for wear resistance and extended service life.

Optimized Flow Dynamics – Designed to reduce drag and improve mud circulation during casing running.

Custom Engineering – Tailored dimensions, materials, and coatings based on specific project needs.

Global Compliance – Products meet API 10D standards and undergo rigorous testing for torque, drag, and bending performance.

4.Competitive advantages of RIGRS casing centralizer products

Wider Product Portfolio – Covering both standard API designs and fully customized engineering solutions.

Faster Lead Times – Lean manufacturing and efficient logistics enable shorter delivery cycles for global projects.

Lower Total Cost of Ownership – Longer service life and reduced replacement frequency minimize hidden operational costs.

Field-Proven Reliability – Used extensively in Middle East, South America, and North America, with consistent performance feedback from drilling contractors.

For supply chain managers, this means less procurement risk, predictable costs, and reliable delivery schedules. For technical engineers, it means confidence in casing placement and well integrity.

Our casing centralizers Manufacture are engineered with precision and built to last. We offer a comprehensive range of centralizers, including solid body, positive, welded spiral, non – welded, and double bow types, all compliant with API 10D production specifications.

For supply chain managers, our products mean reliability and consistency. With our wide variety of centralizers, you can meet the diverse needs of your drilling projects from a single, trusted source. Our commitment to quality ensures that you won’t have to worry about frequent replacements or product failures, streamlining your supply chain operations.

Technical engineers will appreciate the versatility and performance of our products. Whether it’s a vertical well in a stable formation or a highly deviated well in a challenging geological setting, our casing centralizers are designed to deliver optimal centering and cementing results. All our products are equipped with stop rings, adding an extra layer of security during the installation process. Our casing sizes range from 4 – 1/2 to 20 inches (114 – 508 mm), ensuring that we have the right fit for any well project.

5.Drilling engineers must assess several variables when selecting casing centralizers:

Well Deviation & Inclination – Determines whether bow-spring or rigid types are optimal.

Casing Size and Weight – Influences the centralizer’s material selection and mechanical strength.

Formation Characteristics – Hard rock vs. soft formations require different drag and wear resistance levels.

Cementing Strategy – Proper centralization ensures mud removal and cement bonding, preventing micro-annulus formation.

By combining engineering expertise with supply chain efficiency, RIGRS ensures each centralizer adds measurable value to well construction.

6.What data should supply chain managers provide when purchasing casing centralizers?

Casing size range：4-1/2” ~ 20”

OD & ID tolerance

Restoring force

Stand-off ratio

Material grade & coating

Connection method

Load test & field test reports

7.Procurement Case Analysis

A Middle East operator faced cementing failure due to low-quality imported centralizers → resulted in remedial cementing and project delays.

In contrast, when switching to API-certified rigid centralizers with engineered bow springs, the operator achieved 100% zonal isolation and reduced NPT (non-productive time).

This comparison highlights why supply chain managers and drilling engineers must collaborate in procurement decisions.

8.Casing Centralizer Manufacture FAQ

Q1: How do I select the right centralizer for deviated wells?
A: Bow spring centralizers with high restoring force are recommended.

Q2: What certifications should I request from a centralizer supplier?
A: API 10D compliance, ISO certification, and third-party inspection reports.

Q3: How do centralizers affect cementing costs?
A: Proper centralizers ensure full cement sheath, reducing remedial cementing costs.

Q4: Can I request custom centralizer sizes?
A: Yes, many manufacturers (including us) offer custom centralizer design & OEM services.

Q5: What is the average lead time for centralizer supply?
A: Typically 2–4 weeks for standard designs, longer for custom composite solutions.

9.Make an appointment to visit the factory and get product quotes

Contact us today to discuss your project requirements, request technical specifications, or receive a tailored quotation. Together, we can enhance well integrity and maximize drilling efficiency.

Casing Centralizer Manufacture: info@rigrs.com

The post Casing Centralizer Manufacture – Advanced Solutions appeared first on RIGRS Oil Machinery.

For buyers and drilling managers, a well-specified BOP Accumulator Unit means faster acceptance, fewer NCRs, and safer wells.In well control, seconds matter. A BOP Control Accumulator Unit—often called a Koomey BOP Control Unit or simply a Koomey unit—stores and delivers hydraulic energy to close rams and annular preventers on demand. Without a healthy accumulator bank, the smartest BOP stack is just metal. This guide goes beyond the basics to help procurement teams, drilling engineers, and asset managers specify, audit and maintain hydraulic BOP control systems that meet European expectations on safety, documentation and lifecycle cost.

The BOP is a physical barrier that directly seals the wellhead and prevents fluid from gushing out, while the BOP Control Unit (BOPCU) is the power and control core that drives this barrier. When abnormal well pressure (such as a kick) occurs during drilling, or when routine operations are required (such as closing the ram BOP during tripping), the BOPCU must complete the entire process of pressure transmission, valve actuation, and status feedback within 30 seconds (as required by API 16D standard), ensuring the BOP accurately executes commands.

Crucially, its design must adhere to the principles of “redundant reliability and fail-safe”—even if a single component fails, a backup system can immediately take over, preventing loss of well control due to hydraulic control failure. For example, in the 2010 Deepwater Horizon accident, although the direct cause was a stuck BOP ram, subsequent investigations revealed that delayed pressure monitoring and insufficient backup power in the hydraulic control system also exacerbated the consequences. This incident also prompted the upgrading of global RIGRS BOP Accumulator Unit technical standards, further strengthening the requirements for “redundant design” and “fast emergency response.”

1) what is RIGRS BOP Accumulator Unit

A robust BOP hydraulic control system typically comprises:

1.1 Accumulator bank (bottles) – nitrogen-charged bladder or piston type, sized to operate all BOP functions multiple times without pump assistance (BOP control accumulator unit).

1.2 Charging pumps – air-driven or electric (and sometimes diesel) to pressurise the system; dual redundancy is standard for mission-critical rigs.

1.3 Hydraulic reservoir – sized for system volume plus cooling/degassing margin.

1.4 Manifolds & directional valves – allocate pressure to close/open individual rams and annulars, including HCR valves and choke/kill interfaces where applicable.

1.5 Hydraulic control console / panel – local and remote control stations with tactile controls, interlocks, pressure indication and alarms.

1.6 Piping, hoses & umbilicals – API/EN-rated, fire-resistant for offshore; stainless-steel tubing where corrosion is a risk.

1.7 Instrumentation – pressure transducers, WIKA-type gauges, pre-charge test points, flow meters on test loops.

1.8 Logic & monitoring – hardwired ESD, permissives, optional PLC/SCADA gateway for remote BOP panel viewing and event logging.

2) Accumulator Banks: How to Size and Maintain Them

Purpose. The accumulator bank guarantees you can close the BOP twice (or as required by procedure) without depending on running pumps. This is your last, silent reserve of energy.

Sizing approach (simplified).

Determine hydraulic volume per function (close each ram, close annular, open HCR, etc.).

Sum volumes across the required emergency sequence(s).

Apply efficiency factors for line expansion, valve leakage and temperature.

Select total gas volume so the usable fluid volume between maximum system pressure and minimum allowable pressure covers the above—observing API 16D/53 guidance.

Choose pre-charge (N₂) pressure to keep the bladder stable but maintain usable delta-V. (Engineers typically iterate values; verify at operating temperature—cold mornings punish marginal designs.)

Practical tips：

For arctic packages (−30 °C and below), allow extra bottles or higher working pressure to counter viscosity drag and gas compressibility effects.

For desert service, add sunshades and thermal baffles; hot nitrogen expands and shifts the available volume window.

Prefer piston accumulators where high cycling and particulate contamination are expected; bladder types are easy to service and common on land rigs.

Build in isolation and test points per bottle to allow on-rig N₂ checks without depressurising the whole bank.

3) The Hydraulic BOP Accumulator Unit —Human Factors First

The BOP Accumulator Unit (hydraulic control console/panel) is where operators earn the last 1% of reliability through clarity and speed. A panel engineered for the European market typically emphasises:

Ergonomics & labelling – left-to-right functional flow; colour-coded close/open; ISO/EN pictograms; engraved nameplates that resist solvents and UV.

Dual indication – analogue gauges for instant glance plus digital pressure readouts for SCADA trend capture.

Positive-action controls – guarded mushroom ESD; spring-return for test loops; detented selectors for function isolation.

Fail-safe logic – close commands hardwired; open commands permissive-gated; loss of air/electric defaults to safe state.

Contamination control – stainless steel panel internals, 316L tubing, double-ferrule fittings; desiccant breathers on reservoir; ISO 4406 cleanliness targets.

Advanced options (blue-ocean differentiators):

SIL-rated pressure transmitters feeding a PLC with event recorder (who did what, when).

Digital mimic on the remote BOP panel with alarm rationalisation to EEMUA 191 principles.

Hot-swappable gauge blocks and modular valve cassettes—swap in minutes, not hours.

4) Pumps & Power: Matching Duty to Risk

Air-driven pumps (pneumatic) – simple and rugged; ideal for land rigs and hazardous zones with limited electrics.

Electric-hydraulic pumps – faster recovery, superior efficiency; specify IP66 motors, marine coatings, VFD soft-start for offshore.

Diesel standby – independent of platform power; essential in brownouts or storm prep.

What to specify:

Redundancy (2×100% vs 3×50%).

Recovery time from minimum to maximum system pressure.

Acoustic limits (EU rigs often target <80 dB(A) at 1 m).

ATEX/IECEx classification—Zone 1 cabinets, Ex d/e motors.

5) Operating Environment: From land to deep sea, the BOP Accumulator Unit can be customized to meet customer needs.

The environmental differences in different drilling scenarios (such as pressure, temperature, space, and corrosive media) place distinct demands on the design of the BOP Control Unit. Discussing “optimal design” without considering the specific scenario is meaningless. The following three typical scenarios best illustrate the technical complexity of the BOP Control Unit:

1. Conventional Land Drilling: Focusing on “Easy Maintenance + Cost Balance”

• The land drilling environment

The land drilling environment is relatively controllable, but the impacts of dust, vibration, and temperature fluctuations (for example, the day-night temperature difference in desert areas can reach 40°C) must be considered. Therefore, the design features of the onshore BOP Control Unit are:

Modular Structure: The HPU, control module, and fuel tank are split for easy transportation and on-site installation (e.g., handling by forklift);

Wide Temperature Adaptability: The hydraulic oil is rated for a wide temperature range (e.g., -20°C to 70°C), and the fuel tank is equipped with an electric heater to prevent solidification of the hydraulic oil in low-temperature environments;

Simplified Redundancy: Considering the convenience of emergency response in onshore operations, a single backup pump set is typically provided (two sets are required for deep-sea platforms), but the accumulator capacity must be sufficient to power three consecutive well shut-ins.

For example, shale gas drilling in China’s Changqing Oilfield often uses a 3000 psi onshore BOP Control Unit. This unit weighs approximately 1.5 tons and can be transported to the well site by truck. Installation and commissioning takes no more than four hours, meeting the demand for rapid well construction in shale gas operations. 2. Deepwater Drilling: Ultimate “High-Pressure Resistance + Corrosion Resistance + Redundant Reliability”

Deepwater drilling environment

The Deepwater (water depths > 500 meters) and ultra-deepwater (water depths > 1500 meters) drilling present the ultimate challenge for the BOP Control Unit. Underwater pressures can reach 150 bar (15 MPa), temperatures can drop to 4°C, and seawater corrosion and marine biofouling pose significant challenges. Therefore, the subsea BOP Control Unit (typically integrated with the subsea BOP) must meet the following requirements:

High-pressure sealing design: All hydraulic interfaces utilize metal seals (e.g., metal-to-metal seals) to prevent low-pressure seals (e.g., O-rings) from failing under deepwater pressures.

Corrosion-resistant materials: The housing is constructed of super-duplex steel (e.g., 2507) or titanium alloy, and the hydraulic valve manifold is sprayed with a ceramic coating to resist corrosion from Cl⁻ and H₂S in seawater and drilling fluids.

Dual HPU redundancy: The subsea BOP Control Unit must be equipped with two independent HPUs (one installed on the platform and one on the subsea baseplate). Even if the platform HPU fails, the subsea HPU can still independently operate the BOP.

Low-temperature adaptability:

Antifreeze is added to the hydraulic oil to ensure that the viscosity meets flow rate requirements at temperatures as low as 4°C. The accumulator pre-charge nitrogen pressure must be compensated for based on the water depth. For example, the 10,000-psi underwater BOP Control Unit used by Equinor in its ultra-deepwater drilling projects in the North Sea can operate stably at water depths of 2,000 meters and temperatures of 2°C. Its emergency well shut-in time is only 15 seconds, far below the API 16D standard of 30 seconds. 3. High-Temperature, High-Pressure (HTHP) Wells: “High-Temperature Resistance + Erosion Resistance” Are Key.

• HTHP wells

HTHP wells (bottomhole temperatures > 150°C, bottomhole pressures > 69 MPa) present a significant challenge in the drilling industry. Their BOP Control Units must address the effects of high temperatures on hydraulic fluids, seals, and sensors:

High-Temperature Hydraulic Fluid: Use synthetic ester hydraulic fluids (such as phosphate esters) that can withstand temperatures exceeding 200°C and prevent carbonization of mineral oil at high temperatures.

High-Temperature Seals: Use fluororubber (Viton) or perfluoroelastomer (Kalrez) instead of conventional nitrile rubber to prevent high-temperature aging.

Erosion-Resistant Valves: Choke valves and kill valves utilize tungsten carbide as the spool material to resist erosion and wear from HTHP fluids (such as sand-laden oil and gas).

High-Temperature Sensors: Pressure and temperature sensors must operate within a temperature range of -40°C to 200°C and be vibration-resistant (vibration frequency 20-2000Hz). For example, Saudi Aramco’s HTHP gas well project in the Persian Gulf uses a 5000 psi BOP Control Unit. Through the above design, it achieves continuous and stable operation under conditions of a bottomhole temperature of 180°C and a pressure of 80 MPa, without any operational interruptions due to hydraulic control system failures.

6) Standards & Documentation: European Expectations

For tenders that must satisfy IOCs and North Sea operators:

API 16D (control systems) and API 53 (well control equipment)—core compliance.

CE marking – Machinery Directive, EMC, Low Voltage, PED for pressure parts as applicable.

ATEX (2014/34/EU) & IECEx for hazardous areas.

BOP Accumulator Unit material traceability – EN 10204 3.1/3.2, NDE records, hydrostatic certificates.

FAT/SAT packs – traceable test scripts, calibrated instruments, as-built P&IDs, cause-and-effect matrix.

Why it matters: Faster acceptance, fewer NCRs, smoother audits.

7) How to Compare RIGRS BOP Control Unit Manufacturers

When short-listing BOP Control Unit manufacturers, look beyond catalogue pressure ratings:

8) Reliability Engineering: Design for Maintainability

Contamination control – 10 μm absolute filtration, βx≥200; differential-pressure indicators on return filters.

Thermal design – oil coolers with bypass; ambient derating curves in datasheet.

Valve strategy – poppets on close circuits for leak-tightness; spool valves on low-criticality returns.

Hose policy – fire-resistant, low-smoke, halogen-free for offshore; renewal interval documented (2–3 years typical).

Test loop – dedicated circuit with calibrated flow meter to verify pump health without touching BOP stack.

FMECA lens: most nuisance failures are contamination-led or gauge-related; design for easy access beats heroics later.

9) Maintenance Playbook (12–36 Months)

Daily/weekly – reservoir level & cleanliness, leaks, pump duty cycle trend.

Monthly – accumulator N₂ pre-charge checks (bottle isolations ease the job), function tests to minimum pressure threshold.

Quarterly – oil sampling (ISO 4406), return filter change if ΔP alarmed, verification of gauge/transducer calibration.

Annually – full API 53 function test, hose integrity checks, valve seat leak-back test, recovery time re-validation.

Every 2–3 years – hose replacement (offshore), strip & inspect air motors/electric pumps, update FAT-style records to keep the audit trail fresh.

10) Key Specs Table (Koomey Control Unit)

11) Case Snippets (EU-friendly scenarios)

North Sea jack-up (offshore BOP control cabinet).
A Koomey-style package with 5000 psi bottles, dual electric pumps + air standby, Zone 1 Ex d motors, stainless manifolds. The client cut SAT time by 30% thanks to pre-wired PLC data blocks mapping directly to platform SCADA. Result: fewer commissioning hours, smoother HAZOP close-out.

Polish land rig (onshore winterisation).
Accumulator unit winterised to −35 °C with low-temperature seals and a heater-cooled enclosure. Pre-charge stability improved; close times remained within limits in sub-zero mornings. Result: no cold-start NCRs during the season.

Mediterranean platform retrofit (Koomey BOP Control Unit retrofit).
Old cabinet retained; new RIGRS bop control accumulator unit added with isolation manifolds and a digital remote panel. No structural hot-work; PED/CE pack accepted by notified body. Result: upgrade in five shifts, zero NPT.

12) Koomey Control Unit vs “Koomey-Style”: Compatibility Without the Guesswork

“Koomey” has become shorthand for a reliable BOP closing unit. When evaluating Koomey BOP Control Unit alternatives:

Confirm porting & thread compatibility, manifold function mapping and control philosophy to minimise retraining.

Verify spare parts cross-reference (accumulator bladders, valve kits, gauges).

Map electrical & alarm I/O like-for-like to the rig PLC/DCS to avoid re-coding.

Demand a retrofit risk register and a roll-back plan before shutdown.

13) Costing Beyond Capex: TCO Drivers

Energy – electric pumps with VFD can reduce accumulator recharge energy by 10–20% vs fixed-speed.

Downtime – modular valves/gauges cut MTTR dramatically; every hour saved is high-value in rig time.

Inspection overhead – clean documentation (CE/PED/ATEX packages) shortens audits and avoids repeat site visits.

Spares logistics – a standardised valve/gauge family across your fleet is worth more than a one-off low price.

14) RIGRS Koomey Control Unit FAQ

Q. Do I really need API 16D for an onshore project?
If the client spec or national rules require it—yes. Even when not mandated, 16D systems speed approvals and resale value.

Q. Can we mix water-glycol with mineral oil?
Avoid mixing; specify the fluid up-front. Water-glycol aids fire resistance offshore; mineral oil offers better lubricity. Seal kits differ.

Q. How far can the remote BOP panel be located?
Hundreds of metres are feasible; specify signal method (hardwired vs fibre/PLC) and voltage drop allowances.

Q. What is the accepted practice for pre-charge checks?
Bottle isolation + cold-pressure checks with calibrated gauges. Record temperature; gas laws apply.

Q. Can you deliver a PED/CE dossier with ATEX?
Reputable BOP Control Unit manufacturers will supply a full technical file, DoC and notified-body involvement where required.

Q. Lead times?
Standard skids 6–10 weeks; retrofit Koomey BOP Control Unit kits faster; complex offshore cabinets 12–16 weeks.

Whether you’re upgrading a land rig in Oman or preparing a deepwater campaign in the Mediterranean, our team supplies API-compliant Koomey-style units with European documentation packs and expedited lead times.

Contact us at info@apidrillpipe.com to discuss your next project.

Make an appointment to visit the factory: +86 18678687537

The post BOP Accumulator Unit & Koomey Control Unit appeared first on RIGRS Oil Machinery.

This guide takes an in-depth look at various types of drilling pumps, including mud pumps, BW pumps, and frac pumps, and offers valuable insight into their specifications, selection criteria, real-world applications, and maintenance practices.

I. what is mud pump in drilling

1. Mud Pump Basics
A mud pump is a reciprocating piston/plunger pump designed to circulate drilling fluid (mud) under high pressure down the drill string and back up the annulus. Commonly found in onshore and offshore rigs, the most frequently used models include:

Triplex Mud Pumps (Three-cylinder)

Duplex Mud Pumps (Two-cylinder)

2. BW Pump (Borehole Water Pump)
BW pumps are smaller, lightweight mud pumps typically used in shallow drilling, water well drilling, geotechnical drilling, and coal exploration. Their affordability and compact design make them ideal for mobile rigs and small-scale operations.

3. Frac Pump (Fracking Pump)
Frac pumps are high-pressure pumps used to inject fluids into tight rock formations to create fractures and enable oil/gas flow. These pumps demand robust construction, high horsepower, and precise control systems.

II. Triplex vs. Duplex Mud Pumps

Triplex Mud Pumps

Higher efficiency and smoother discharge.

Compact design with fewer moving parts.

Widely used in deep wells and horizontal drilling.

Duplex Mud Pumps

Simpler construction with two pistons.

Easier to maintain and cost-effective.

Ideal for shallower or low-pressure applications.

III. How to Select the Right Drilling Pump

1. Consider Your Drilling Depth and Pressure Needs

Use triplex pumps for high-pressure and deep wells.

Use duplex or BW pumps for shallow wells and mobile rigs.

2. Match Pump Power with Drilling Rig Capacity

Avoid overpowered pumps on small rigs to reduce fuel and wear.

Ensure compatibility with drive systems (diesel, electric, or hydraulic).

3. Analyze Mud Type and Flow Rate Requirements

Heavier mud requires pumps with greater horsepower and pressure ratings.

Adjust flow rate (LPM or GPM) to match borehole dimensions.

4. Understand Regional & Environmental Conditions

Use corrosion-resistant materials in high-salinity or offshore operations.

For desert or arctic conditions, select pumps with reinforced seals.

IV. Frac Pumps: Applications & Advantages

Frac pumps are central to hydraulic frac (“fracking”) operations. These pumps typically come in trailer-mounted units with up to 2500 horsepower and are capable of delivering extremely high pressures (up to 20,000 psi).

Key Features:

Hardened steel fluid ends for durability.

Dual lubrication systems for extreme temperature conditions.

Modular skid design for transportability.

Applications:

Tight oil and shale gas extraction.

Re-stimulation of declining wells.

Enhanced geothermal system development.

V. How to use a mud pump

1. Duplex Mud Pump in Geotechnical Drilling – India
A client working on soil investigation projects across hilly terrain deployed our BW-250 duplex pump. Its portability and simplicity enabled operations in remote locations without heavy logistics.

2. Triplex Mud Pump in Middle East Deep Well Drilling
A petroleum client in Oman utilized our F-1600 triplex pump, reducing non-productive time (NPT) by 18% thanks to its higher flow rate and low pulsation.

3. Frac Pump in U.S. Shale Plays
Our customized 2500 HP fracking pump supported a major operator in the Permian Basin. With reinforced fluid ends and real-time pressure monitoring, they achieved consistent fracture propagation with minimal downtime.

VI. Why Quality Matters: Risks of Poor-Quality Mud Pumps

And when pumps fail? Expect fluid leaks, pressure drops, and the kind of unexpected downtime that kills your project schedule.

Sudden downtime and drilling delays.Higher maintenance and spare parts costs.Risk of blowouts and HSE violations.

When Lower Prices Come with Higher Risks: Some manufacturers lower prices by using low-grade castings, substandard liners, or weak fluid ends. While these options seem economical upfront, they compromise your entire supply chain efficiency.

VII. How Our Pumps Help Reduce Downtime by 20%

When you purchase drilling pumps from us, you’re investing in more than just equipment:

Guaranteed Quality: All pumps are tested under full load conditions.

Customization: Tailored solutions for special pressure or flow demands.

Availability: Fast delivery timelines and stocked parts.

Support: Global after-sales network for repairs and training.

Our engineering team can even assist with pump selection, based on your geological reports, operational history, and budget. We aim to be a partner, not just a supplier.

VIII. Maintenance and Service Plans by Pump Type

Duplex Mud Pumps

Regular check of piston seals and liners.

Weekly lubrication of bearings.

Visual inspection of connecting rods and crankshaft.

Triplex Mud Pumps

Monitor pulsation dampeners and valves.

Change liner sleeves after 300 hours of use.

Balance pistons to avoid crankshaft wear.

Frac Pumps

Pressure test fluid ends after every frac job.

Monitor thermal buildup in gearbox.

Replace expendables like valves and seats after high-pressure cycles.

IX. FAQ

Q1: What is the difference between BW pump and standard mud pump?
A: BW pumps are smaller and ideal for water well drilling or geotechnical projects. Standard mud pumps (triplex/duplex) are designed for oilfield applications requiring higher pressure.

Q2: How often should I replace liners and pistons?
A: It depends on usage, but generally every 300–500 operating hours. Always monitor for pressure drops and fluid leaks.

Q3: Can I use one pump for multiple drilling applications?
A: It depends on the design. Some pumps are modular and can be adapted with different fluid ends and drive systems.

Q4: Do you provide spare parts and maintenance support?
A: Yes. We offer full sets of OEM and aftermarket spare parts, along with technician support worldwide.

Q5: What certifications do your mud pumps carry?
A: Our pumps comply with API Spec 7K, ISO 9001, and other international standards.

Conclusion

Choosing the right mud pump is not just a technical decision—it’s a strategic move that impacts your uptime, safety, and cost per foot drilled. Whether you’re working on a geothermal project in Africa, a shale well in Texas, or a geotechnical borehole in Southeast Asia, we offer a full range of duplex, triplex, BW, and frac pumps to meet your operational needs.

Reach out to our engineering team today to discuss your next drilling campaign.

The post Mud Pumps,BW Pumps,and Frac Pumps — Oilfield Pump Selection appeared first on RIGRS Oil Machinery.

1. Understand the Function and Importance of a Mud Pump

Before choosing the right model, it’s essential to understand what a mud pump does:

Circulates drilling fluid from mud pits through the drill string to the bit, and back up the annulus.

Cools and lubricates the drill bit during operation.

Removes cuttings from the wellbore.

Balances formation pressure, helping to prevent blowouts or well collapse.

A poorly chosen pump can lead to inefficient drilling, higher maintenance costs, or even equipment failure.

2.Identify your core needs: Starting from the actual well site

Well depth and borehole size:

Deep wells and ultra-deep wells require higher pressure and continuous stability; large boreholes require larger displacement. This is the cornerstone of selection.

Geological conditions:

Complex formations (such as high-pressure layers and easy-to-collapse layers) require pumps to have precise pressure control capabilities and stable displacement output.

Drilling fluid type:

Water-based, oil-based or synthetic-based mud? High-density mud? Solid phase content? These directly affect the material selection and wear resistance requirements of the pump.

Operation goals:

Pursuing the highest drilling speed? Focusing on cost control? Or do you need to cope with extreme working conditions? Different goals have different selection focuses.

Existing matching:

The power system (diesel engine/motor) power, solid control system processing capacity, and manifold pressure rating must be perfectly matched with the new pump.

3. Key Factors to Consider When Selecting a oilfield Mud Pump

a. Pump Pressure and Flow Rate Requirements

These are the two most critical performance parameters:

High-pressure, low-flow pumps are ideal for deep wells.

Low-pressure, high-flow pumps are better for shallow or large-diameter wells.

Also, calculate Hydraulic Horsepower (HHP) using:

HHP (in HP) = (Pressure in PSI × Flow Rate in GPM) / 1714

This value determines the bit cleaning and cuttings transport efficiency.

b. Triplex vs Duplex Pumps

Triplex Mud Pumps: Most commonly used; compact and efficient. Less pulsation and wear.

Duplex Mud Pumps: Older design, larger footprint, and more maintenance.

For modern operations, triplex F-series oilfield mud pumps (F-500 to F-2200) are standard.

c. Mud Type and Abrasiveness

Choose pumps that can handle the viscosity, solid content, and corrosiveness of your drilling fluid. If using oil-based or weighted mud, you’ll need high-wear resistance liners and pistons, such as those made from ceramic or chrome-plated materials.

d. Maintenance and Spare Part Availability

Always consider:

Are spare parts like pistons, liners, and valves readily available?

Is the pump compatible with OEM or aftermarket parts?

Can your crew perform routine maintenance onsite?

Choosing a popular model like the F-1300 or F-1600 ensures easy access to spares globally.

4. Matching the Mud Pump to Rig Size and Well Design

Your mud pump must match the capabilities of your drilling rig. Undersized pumps reduce performance, while oversized units can damage components or consume unnecessary fuel.

Also, evaluate if one pump is enough or whether a dual-pump system is needed for redundancy or higher volumes.

5. Energy Efficiency and Fuel Consumption

In remote operations or where fuel cost is high, energy-efficient oilfield mud pumps can save thousands over time. Consider:

Power source (diesel, electric, or hybrid)

Rated input horsepower (should match engine/generator specs)

Mechanical losses and efficiency curves

6. Noise, Vibration, and Environmental Impact

For offshore or urban environments, you may also need:

Low-vibration design

Noise-reduction housings

Compliance with local emission standards

7. Customization and OEM Support

Reputable manufacturers offer tailored solutions:

Custom skid-mounted designs

PLC-controlled monitoring systems

Export packaging and technical documentation

Multilingual manuals and service training

At RIGRS, we provide customized F-series mud pumps and interchangeable spare parts that are fully compatible with OEM models. Our engineering team works closely with your drilling team to optimize performance.

8. Future-Proofing: Scalability and Modularity

Think ahead: Will your next project require more capacity? Choose a pump model that:

Can be upgraded with larger liners or motors

Offers modular components for easy swap-outs

Is compatible with digital monitoring and diagnostics

9.Why Mud Pump Maintenance Matters

A mud pump failure not only interrupts drilling operations but can also:

Cause poor hole cleaning

Lead to stuck pipe or differential sticking

Compromise well control due to pressure loss

Damage downhole tools due to pressure fluctuations

By adopting preventive maintenance routines, you can:

Avoid unscheduled shutdowns

Reduce replacement parts costs

Extend the life of pistons, liners, valves, and rods

Improve safety and environmental compliance

10.Key Components That Need Regular Inspection

Understanding which components are most vulnerable is essential to proactive pump care. Here’s a breakdown:

Tip: Maintain a spare parts inventory on-site to minimize downtime.

11.Practical Maintenance Tips from the Field

Monitor Discharge Pressure and Flow Rate:
A sudden drop can signal liner damage or valve wear.

Use High-Quality oilfield Mud Pump Parts:
OEM or API-compatible parts reduce wear and ensure seal integrity.

Install Pulsation Dampeners:
Reduces vibration, protects components, and smooths fluid flow.

Track Maintenance Hours Digitally:
Use maintenance log software or QR-coded systems to track pump hours and service records.

Flush the Fluid End Regularly:
Especially before storage or after use with weighted mud, to prevent solids buildup.

Train Field Crews:
Many pump failures stem from operator error—periodic training makes a difference.

12.Lubrication & Fluid End Monitoring

Check oil levels in the power end daily.

Monitor for contamination in lubricant (sign of seal failure).

Perform oil sampling every 500 hours for wear particle analysis.

Ensure proper alignment of pony rods to prevent crosshead or stuffing box damage.

13.When to Rebuild vs. Replace

14.Compatible with All Major drilling Mud Pump Brands

Our high-quality parts are 100% compatible with:

F-500 / F-800 / F-1000 / F-1300 / F-1600 mud pumps

National, Emsco, Gardner Denver, Bomco, Rongsheng models

Custom-fit solutions available upon request

The Right drilling Mud Pump Saves Time and Money

Choosing the right mud pump isn’t just a technical decision—it’s a strategic investment in safety, efficiency, and long-term cost savings. By carefully evaluating your well design, pressure and flow needs, rig size, and maintenance strategy, you can ensure smoother operations and fewer disruptions.

Contact Us for Expert Recommendations

Need help selecting the right mud pump for your next project? Our team of engineers is ready to assist you with performance calculations, model comparisons, and customization options.

[Contact Us Today] to get a tailored solution and competitive quote.

info@rigrs.com

+86 18678687537

Frequently Asked Questions (FAQ)

1. What are the most common types of mud pumps used in drilling?

The most commonly used mud pumps are:

Triplex Mud Pumps – These have three pistons/plungers and are widely used due to their compact design, high efficiency, and ease of maintenance.

Duplex Mud Pumps – These have two pistons and are generally used for smaller drilling rigs or less demanding drilling operations.

2. What does “F Series Mud Pump” mean?

“F Series” refers to a standardized design of triplex mud pumps that are compatible with various OEM parts like Emsco, Gardner Denver, and National. They are known for:

High interchangeability

High-pressure capability

Robust structure suitable for deep well and HPHT drilling

3. How do I determine the appropriate power rating for my mud pump?

The required horsepower (HP) of a mud pumping depends on:

Desired flow rate (GPM or LPM)

Operating pressure (PSI or Bar)

Depth and type of the well
A deeper and more complex well requires a higher HP rating. For example:

Shallow well: 500–800 HP may be sufficient

Deep or HPHT well: 1200–2200+ HP might be necessary

4. What’s the difference between a high-pressure and high-volume mud pump?

High-pressure pumps are ideal for deeper wells and require greater force to circulate mud effectively.

High-volume pumps are better suited for shallow wells or where large volumes of mud are needed quickly.

5. Can I replace parts from different manufacturers?

Yes, if your pump and spare parts meet API 7K or OEM standard specifications, many components like liners, valves, pistons, and fluid modules are interchangeable.

6. How often should I maintain a mud pump?

Routine maintenance schedules typically include:

Daily checks: Oil level, temperature, leak detection

Weekly: Valve assembly inspection, pressure testing

Monthly: Replace worn-out pistons/liners, tighten bolts

Quarterly or after 500–600 hours: Full inspection and overhauling of power and fluid ends

7. Do you offer customization for different drilling conditions?

Yes. At [Your Company Name], we offer:

Customized flow-pressure combinations

Optional skid mounting, electric/diesel drive, climate adaptation kits

Mud pumping packages with matching manifolds, pulsation dampeners, and control systems

8. What’s your delivery lead time?

For standard F-Series pumps, lead time is usually 3–4 weeks. For customized units or large volume orders, delivery may take 6–8 weeks. All shipments comply with international packaging and transport standards.

Why Choose RIGRS

Over 20 years of experience in oilfield equipment manufacturing

API 7K certified production

Spare parts compatibility with Emsco, National, Gardner Denver

24/7 after-sales technical support

Need Help?
Talk to our technical team now.

The post How to Choose the Right oilfield Mud Pump Model for Your Drilling Operation appeared first on RIGRS Oil Machinery.

Centralizers play a critical role in drilling by ensuring your casing remains properly aligned within the borehole. Whether you’re operating in a high-angle well or facing challenging formation profiles, centralizers directly affect cementing quality, casing integrity, and overall operational efficiency.Choosing the right type can dramatically improve wellbore integrity, reduce NPT (non-productive time), and ensure regulatory compliance.

2.What is the role of the centralizer in drilling operations?

1.1 Centralizers for Casing
Casing centralizers ensure the pipe remains centered in the borehole during cementing. This prevents channeling and improves zonal isolation by allowing even cement coverage around the casing.

1.2 Improving wellbore quality: The stabilizer helps to drill a more regular and smoother wellbore.

Reduce the “dogleg” (the degree of sudden change in the direction of the wellbore) and reduce the risk of fatigue fracture of the drill tool at the dogleg.

Make the wellbore diameter more stable and create good conditions for subsequent casing and cementing.

1.3 Centering casing: This is the most important function of the stabilizer on the casing string.

Install the centralizers at a certain interval on the outer wall of the casing string to center the casing in the wellbore.

Key purpose: to ensure cementing quality.

If the casing is close to the edge, the cement slurry cannot flow evenly in the annular space between the casing and the wellbore wall, resulting in uneven cement ring thickness.

Centering the casing can ensure that there are sufficient and uniform cement rings everywhere in the annular space, effectively isolate different formations, prevent oil, gas and water from crossing each other, and ensure the integrity and long-term safety of the wellbore.

1.4 Protect casing and drilling tools:

Reduce direct friction and collision between the drill string or casing string and the wellbore wall, reduce wear and extend the service life of the pipe string.

In directional wells and horizontal wells, the centralizer can significantly reduce the drag resistance of the pipe string on the wellbore wall.

Reduce drill string vibration and stick-slip effect:

The additional support points provided by the centralizer help stabilize the drill string, reduce harmful lateral vibration and torsional vibration, and protect the drill bit, downhole tools and measuring instruments.

3. What types of centralizers are there?

These are the types of centralizers commonly used in oilfield operations, and their product features.

4. Product advantages and features of RIGRS centralizer

1.1 Integral Centralizers oil and gas

Made from a single piece of high-strength steel

No welds = no weak points

Exceptional for HPHT (high pressure, high temperature) wells

Available in customized OD/ID sizes and configurations to match your exact casing needs

Use case: Deep wells, sour environments, offshore rigs

1.2 Rigid Centralizers

Strong, non-flexing body ensures maximum stand-off

Common in horizontal or highly deviated wells

Prevents casing sag and differential sticking

Material options: Cast steel, ductile iron, corrosion-resistant alloy

1.3 Roller Centralizers

Equipped with hardened steel or alloy rollers

Reduce drag and torque during casing running

Suitable for ERD wells, complex trajectories

Feature: May include vertical and horizontal rollers for multi-directional movement

1.4 Hinged Centralizers

Split-body design allows for easy installation on-site

Secured with stop collars or set screws

Preferred for casing with complex geometries

1.5 HYF Spiral Blade Centralizers

Blades are angled/spiral, enhancing fluid turbulence

Improve mud displacement during cementing

Better cement sheath bonding in slanted or deviated wells

Also known as: “spiral vane centralizers” or “spiral rib centralizers”

5. How to choose the right centralizer for your wellsite environment?

Hole deviation：Higher deviation → Use rollers or spiral blade types.

Well depth & temperature：Deep, high-temp wells → Use integral or rigid types.

Drag/torque constraints：Extended reach → Use roller types.

Cementing quality target：Spiral blade/HYF types create turbulence for better cement bonding.

Casing running equipment：Hinged types are field-friendly for installation flexibility.

Contact a RIGRS engineer for assistance in selecting the appropriate centralizer.

6.Why the RIGRS Centralizer Saves You Money?

Reduced NPT (non‑productive time): Less torque/drag equals faster casing running.

Improved cement bond logs: Better zonal isolation equals fewer remediation jobs.

Lower failure risk: Strong stand‑off avoids casing collapse or sticking

Better tool utilization: Custom configurations minimize inventory overhead for rentals.

Sufficient stock: Various models are in sufficient stock and can be packaged and shipped within 5 days to meet your needs for fast delivery.

7. Successful cases of using RIGRS centralizer

Case 1 – Horizontal Well in Argentina

A drilling contractor used our rigid centralizers with tight clearance to prevent casing sag. Cementing success improved by 30%.

Case 2 – Shale Gas Project in Texas

For high-deviation wells, roller centralizers reduced torque by 25%, speeding up casing running operations.

Case 3 – Offshore Well in UAE

Used our HYF spiral centralizers to enhance mud removal. Cement bond logs showed 90% improvement over previous jobs.

8. Centralizer Accessories You Can’t Ignore

Stop Collars (hinged, set-screw, spiral-slip) hold centralizers oil and gas securely.

Centralizer Subs & Running Tools enable smooth installation and positioning

Tip: Always ask suppliers about compatibility of stop collars with your casing OD and thread profile.

9. Buying Checklist for Drill Contractors & Rental Companies

 Do you know your casing OD, thread type, and standoff target?

 What’s your well’s max deviation, depth, temperature?

 Benchmark torque/drag; consider roller types?

 Is fast field installation needed (e.g. hinged solutions)?

 Ask vendor for load‑test certs, dimensional drawings, lead time info

10. FAQ

Q: Can centralizers be retro‑fitted on existing casing?

A: Yes. Use hinged centralizers with split design, or roll-on bow spring types if borehole clearance permits.

Q: What materials resist corrosion?

A: Integral, rigid, and hinged types use alloy steels with epoxy or fusion-bonded coatings. Spiral types often use Ni-Cr alloys.

Q: Any sample/testing available?

A: Yes — we supply samples, strength tests, and dimensional drawings on request.

11. Ready to Order or Need Technical Support?

We’re an API & ISO-certified manufacturer offering custom centralizer solutions, stop collars, and running tools.

Need help selecting a centralizer for your well?
Our engineers are ready to support your team. Just reach out — we typically respond within 12 hours.

The post How to Choose the Right Centralizer for Drilling and Cementing Success? appeared first on RIGRS Oil Machinery.

What is an F-Series mud pump?

The F-Series mud pump is a horizontal, three-cylinder, single-acting reciprocating pump that circulates drilling fluid at high pressure. It is widely used in oil drilling rigs and workover rigs. The three-cylinder mud pump pumps drilling mud into the wellbore, cools the drill bit, cleans the wellbore and transports cuttings to the surface.

The drilling mud pump models we produce areinclude

F-500, F-800, F-1000, F-1300, F-1600 and F-2200, covering a wide range of flow and pressure to meet all types of drilling applications. At the same time, in order to meet special and frequent needs, we have lightweight mud pumps specifically for jungle drilling; we also have high-pressure triplex Mud Pumps with a maximum working pressure of 51.7MPa (7500psi). As a specialized mud pump production factory,our company can design and manufacture a variety of pump package and drilling pumps according to reauirements by users, whether such pump packagess are truck-mounted type or indoor type, whether such pump packages are driven by domestic or importing diesel engines or large power motors, they are connecting by clutches or cardan shafts, whether they use belt pulleys or chain wheels as transmission methods, we can meet the needs of our users and provide our users with satisfactory solutions and products.

Why choose our F-Series mud pumps?

Our F-Series mud pumps are designing to handle the toughest drilling conditions. These pumps are known for their compact size, smooth operation and high-pressure performance. Whether you are drilling for oil, gas or geothermal energy, the F-Series is a field-proven choice for shallow and deep wells.

Oilfield mud pump Key Features:

• 1. Rugged and durable structure

All our oil drilling pump frames are made of high-strength forging steel for maximum durability. The fluid end adopts a replaceable module design for easy maintenance and extended service life.

• 2. Triplex Mud Pumps efficient and stable operation

Our triplex mud pumps have high volumetric efficiency and low pulsation, which helps maintain smooth fluid flow. The three-cylinder piston design reduces vibration and noise, thereby reducing system wear.

• 3. Full compliance with industry standards

We support both metric and imperial systems to ensure compatibility with global drilling equipment.

• 4. Flexible power options

Depending on the rig configuration, diesel engines, electric motors or hydraulic drive systems are optional. Skid-mounted and trailer-mounted configurations are also available for easy mobility.

• 5. Interchangeable mud pump parts – Save time and reduce usage costs.

Downtime is costly. Therefore, we also provide OEM-quality mud pump components, including: valve assemblies and valve seats, pistons and piston rods, bushings and extension rods, modules and gear sets, crossheads, bearings and seals.

• 6. Fast delivery

We have sufficient inventory of some parts to complete the fast delivery of triplex mud pump. In cooperation with customers in Oman, our triplex mud pump were producing, assembled and we completing the entire process—from production to testing and delivery—in just 20 days.

Our triplex Mud Pumps spare parts:

Our oil drilling pump spare parts are fully compatible with well-known brands such as Emsco, National, Gardner Denver, Bomco and Ideco. This means that you can replace worn parts without replacing the entire system, saving costs and simplifying maintenance.

Choose rigrs triplex mud pump spare parts, and conventional products can be delivering in as fast as 5 days. All product shipments include a complete quality inspection report, so that your products can be using with confidence. Leading patented technology makes our mud pump spare parts have a longer service life. Professional technical team can provide multilingual service guidance. Choose RIGRS mud pump, choose peace of mind.

Companies that work closely with us:

OMV,ROSNEFT,LUK,SHELL,TOTAL,BP,ADC,NNPC, etc.

Drilling contractors, oilfield service companies, EPC and drilling rig manufacturers, drilling equipment rental companies. For example: , we have more than ten years of stable supply capabilities, please choose RIGRS, and believe that our company and products can make your production more efficient. If your team is responsible for procurement, equipment maintenance or field operations, our products will fully meet your needs.

Are you looking for a reliable triplex Mud Pumps supplier?

If you are looking to purchase mud pumps for drilling, or need a trustworthy mud pump parts supplier, please contact us now. We’re here to help you cut costs, boost uptime, and keep your rig running without delays.

Please contact us for prices, technical specifications or to request a quote and design plan.

Let us ensure your rig runs efficiently, safely, and without delays.

The post F triplex Mud Pumps and Spare Parts for Your Drilling Project appeared first on RIGRS Oil Machinery.

What role does a mud pump play in drilling operations?

• 1. The mud pump is the core power for the circulation of drilling fluid

Circulation path: The mud pump sucks the drilling fluid from the mud pool, transports it to the drill pipe through a high-pressure pipeline, directly reaches the drill bit, and then returns to the ground along the annulus between the drill string and the well wall to complete the circulation.

• 2. Drilling mud can cool and lubricate the drill bit

Cooling mechanism: The drill bit rubs against the formation during high-speed rotation to generate high temperature. The mud flows through the drill bit nozzle, effectively taking away the heat and preventing the drill bit from overheating and damage.

3. Can carry and remove cuttings

Cuts processing: The cuttings generated by the drill bit breaking the formation need to be removing in time. The mud pump adjusts the displacement to ensure that the mud flow rate is sufficient to carry the cuttings to the ground.

• 4. Can stabilize the well wall and balance the pressure

Mud cake formation: The solid phase particles in the mud form a low-permeability mud cake on the well wall, reducing filtration and preventing well wall collapse.

Pressure balance: By adjusting the mud density, the static pressure of the mud column offsets the formation pore pressure and structural stress, preventing well kicks or blowouts, and ensuring well control safety.

• 5. It can provide hydraulic power for downhole tools

Power transmission: Downhole tools such as turbodrills and screw motors rely on the high-pressure fluid provided by the oilfield mud pump supplier to drive the drill bit or directional drilling.

• 6. It is a medium for data transmission

Mud pulse technology: The measurement while drilling (MWD/LWD) tool transmits downhole data by modulating the mud pressure pulse. The stable pump displacement ensures clear signal transmission and real-time feedback of geological parameters.

• 7. Assist well pressure control and emergency response

Dynamic pressure regulation: By adjusting the pump displacement to control the annular pressure consumption and maintain the bottom hole pressure balance. When the formation fluid intrusion is detecting, the pump speed can be quickly increasing to implement the well killing operation.

Well killing application: In an emergency, high-density well killing fluid is injecting to replace conventional mud, quickly restore pressure balance, and prevent blowout accidents.

• 8. Help optimize drilling efficiency

Adjust the pump displacement and pressure according to the well depth. And formation characteristics to match the optimal drilling speed and reduce non-productive time.

Modern mud pumps have variable speed drive function, output power on demand, reduce energy consumption and improve economy.

For procurement managers and drilling superintendents. Selecting the right mud pump is more than just a matter of budget—it’s about long-term operational performance, safety, and reducing non-productive time (NPT). A poorly specified or low-quality pump can lead to breakdowns, fluid losses, or even costly downtime.

In this article, we’ll guide you through what to look for in a reliable mud pump and the mud pump parts that keep your operation running at peak performance. Whether you are a new drilling project that requires the purchase of mud pump sets or an oilfield mud pump supplier upgrade. And replacement of mud pump spare parts. This article will all help you make informed decisions that meet your technical requirements and business goals.

China-Made Mud Pumps: Types, Standards & Advantages

The drilling mud pump we mentioned. Is typically a reciprocating triplex or quintuplex piston/plunger pump designed to circulate drilling mud under high pressure down the drill string and back up the annulus.

In most modern land-based and off shore rigs, the triplex mud pump is the industry standard due to its balance between size, flow rate, and pressure output. High-pressure pumps, often reaching up to 7,500 PSI or more. Must be precisely matching to the depth and geological conditions of the well.

The main mud pumps produced domestically are: F series mud pumps, 3NB mud pumps, and BW mud pumps.

What should be noting when choosing a mud pump?

Not all mud pumps are creating equal. Choosing the wrong model can lead to maintenance headaches or mismatched pressure requirements.

Here are several critical factors to evaluate:

• 1.Flow Rate & Pressure: Ensure the pump can deliver the required flow (measured in GPM) at the needed pressure (PSI), particularly for deep or HPHT wells.
• 2.Durability & Construction: Look for forged steel fluid ends, hard-faced liners, and precision-machined power ends to ensure longevity in harsh drilling environments.
• 3.Certifications & Standards: Always check for API 7K or GOST compliance, especially if your operations are auditing by international regulators or partners.

Manufacturer Support: Consider global after-sales support, spare parts availability, and technical assistance. A reliable vendor can be the difference between hours and days of downtime.

Why RIGRS Is a Trusted Mud Pump Manufacturer

When it comes to critical equipment like mud pumps, reliability, performance, and after-sales support are non-negotiable. At [Your Company Name], we’ve spent over two decades perfecting the engineering and manufacturing of mud pumps. And mud pump parts that meet the real-world demands of drilling companies across the globe.

Our pumps are trusting by operators in some of the most demanding oilfields—from the deserts of the Middle East to deepwater rigs in Southeast Asia. Here’s what sets us apart:

API & GOST Certifiing Manufacturing: All of our mud pumps and core components are built to meet or exceing international standards, including API 7K and GOST.

Custom Solutions for Every Project: Whether you’re drilling shallow wells or managing high-pressure, high-temperature (HPHT) operations. We offer customizable solutions tailored to your specifications.

High-Quality Mud Pump Parts: From fluid ends and pistons to liners and valve assemblies. our parts are engineering for extending service life and maximum interchangeability with major OEMs.

Features of RIGRS mud pump spare parts:

1. Gear Pair：It adopts herringbone gear transmission with larger transmission torqueand stable performance.
2. Frame：The frame is welding with steel plates. The pinion shaft bearing seat and the upper and bottom seats of crank shaft are made of cast steel and theframe is processing to eliminate stress after welding, there fore, it has goodstifiness and strength. The bottom seat of crankshaft adopts slab reinforcedstructures. There are necessary oil sump and oil pipeline system within themachine frame, which are used for cooling and lubrication.
3. Crankshaft：The crankshaft is made of cast alloy steel. The inner bore of the herring bone gear and the crankshaft are jointed together by interferencefit and fastened by bolts and locknuts. Both sides of the crankshaft areequipped with double row spherical roller bearings to the heart. So as toensure the stability in operation and to improve the bearing capacity.

Pinion Shaft：

It is made of forging alloy steel. On the shaft there is herringbone gearwhose tooth surfaces are of medium hardness. There is shaft extension atboth ends, where belt wheels or chain wheels may be installing.

1. Crosshead： The integral crosshead is casting with nodular cast iron, so the crossheadhas good resistance to abrasion. Apart form RS-F500 drilling pumps, whichadopt guide tube structure, all other crosshead guides are made up of anupper and a bottom guide. Gaskets may be adding under the crossheadguide to regulate the concentricity. The extension rod is connecting tothe crosshead by flange with pin so as to ensure the concentricity of thecrosshead and the extension rod. The packing adopts double sealingstructure,which realizes good seal performance.
2. Fluid Cylinder：The fluid cylinder is made of forging alloy steel. The RS-F series pumpsadopt straight-through type cylinders, with saw tooth threads at the topside. They are small in size and the volumetric efficiency is very high. The cylinder surface is processing by nickel-phosphor plating in order toincrease their resistance to corrosion. The three cylinders of a pump areinterchangeable.
3. Valve Assembly：F500 adopts APl#5 valves,RS-F800 and FS-F1000 drilling pump adoptAPl#6 valves,RS-F1300 and FS-F1600 drilling pumps adopt APl#7 valvesRS-F2200 drilling pump adopts APl#8 valves and the parts of the fluid endof F800 and F1000 are interchangeable. The parts of the fluid end of RS-F1300 and RS-F1600 are interchangeable.

Lubrication System：

The lubrication system adopts pressure lubrication combining withsplash lubrication. Or otherwise it may also adopt external motor drivenlubrication according to the user.

1. The Spraying System：The spraying system is composing of spraying pump, water tank andspraying pipes. The spraying pump is a centrifugal pump. lt can be drivenby a belt wheel installing on either side of the pinion shaft or by a motorusing water as cooling and lubricating liquid.
2. Cantilever Hoister System：In order to reduce the labor intensity of drilling workers, and for easyfield operation. The RS-F1300 and RS-F1600 pumps are equipping with acantilever hoister. Which is using to help removing or replacing the liner orother parts of the fluid end.

Global After-Sales Support: RIGRS company has established a subsidiary in the United states., It has buit up authorized serviceand maintenance agencies in a number of regions.

Competitive Pricing: As a top-tier mud pump manufacturer in China. We deliver world-class quality at factory-direct prices, helping you reduce CAPEX without compromising performance.

FAQ:

Q1: Are RIGRS mud pumps compatible with BOMCO or National brands?
Yes. Our pumps and spare parts are 100% interchangeable with most mainstream models.And as a mud pump manufacturer, we can provide you with customized services.

Q2: Can you supply spare parts separately?
Absolutely. We supply pistons, liners, valves, rods, and all critical spare parts.

Q3: What’s the delivery time?
Standard models are in stock; delivery in 5–10 days. Custom orders may take 25–40 days.

Conclusion: Invest in Equipment That Works as Hard as You Do

A mud pump is more than just another piece of machinery—it’s the heart of your drilling fluid circulation system. Choosing the right pump and maintaining it with deliver consistent performanc mud pump parts can make a measurable difference in uptime, safety, and cost efficiency.

At RIGRS, we’re here to help you make that choice with confidence. Our technical team is ready to provide specifications, CAD drawings, or custom quotes based on your project needs.

Talk to our mud pump engineers to discuss your requirements or Apply for factory inspection.

Email us at: info@rigrs.com

Download our latest Mud Pump Catalog [PDF link]

Or schedule a video call with our technical engineer +86 18678687537

Consultation on special function mud pumps:

• 1.Driling in jungles:The single module of the mud pump is nomore than 2.5t and can be transporting by helicopter.
• 2.High pressure driling pump：The maximum working pressure can reach 51.7MPa (7500psi）.

Pump package (mud pump unit): Our company can design and manufacture a variety of pump package and driing pumps according torequirements by users. Whether such pump packages are used in operaions of land drlling or marine dirling. Such pump packagess are truck-mounted type or indoor type. Whether such pump packages are driven by domesticor imported diesel engines or large power motors. They are connecting by clutches or cardan shafts. Whetherthey use belt pulleys or chain wheels as transmission methods, we can meet the needs of our users and provide ourusers with satisfactory solutions and products.

The post How to Choose the Best Mud Pump and parts for Efficient,Safe Drilling(2025 Guide) appeared first on RIGRS Oil Machinery.

Understanding the RIGRS BOP Control Unit​

RIGRS BOP control system is a special equipment which is used to control BOP, hydraulic choke and killines. And indispensable equipment for blowoutprevention during driling or rebuilding well in oil and natural gas industny. The BOP Control Systems are all strictly designedmanufacturing and inspected in accordance with China National Standard SY/T5053.2-2007 & APl Spec.16D.

Type selection, propelinstallation, connection and maintenance of control system must depend On OPERATION MANUAL.More than 60 types of BOP Control Systems. Whose controlled objects are from 2 to 15, are suitable for any dificult climateatmosphere or bad weather conditions in inland sand areas or plateau at home and abroad.

The system is equipping with two pump groups. Electric pump with diferent flow rate, and pneumatic or manual pump which ensurethe system to work normally in case of power failure. The design of accumulator unit meets the requirement of closing all accumulator bop control system stacksand opening hydraulic valve. lf any accumulator fals to work, the total liquid loss wil not exceed 25%.

RIGRS can offer theaccumulator with ASME or CE mark that complies with the requirements of API Spec.16D in request of customers’ specialrequirements. The pressure of annular preventer circuit in control system may be adjusting by pneumatic regulator. lt charactersreverse adjusting. In case of sudden faiure of air supply, the pressure can be reset to the preset value automatically. The contromanifold of the remote control panel is equipping with an orifice as an inlet of the pressure source.

For example, the spare nitrogensystem offered by RIGRS provides emergent auxiliary energy. lf the accumulator of the pump can not provide the control manifoldwith enough power fuid. The spare nitrogen system may be using to provide high pressure air to close the preventer. The sparenitrogen system may provide emergency air supply for the driller’s panel and the auxiliary remote panel.

The system can be equipping with an alarm device.

lt monitors the accumulator pressure, ar supply pressure and the liquid level inthe oil reservoir. When the above parameters exceed the alarm limits, the audible and visual signal will appear immediately.The auxiliary remote panel and wireless auxiliary remote panel can be equipping with to monitor the remote control panel. Theauxiliary control panel is connecting to the remote control panel with air hose bundle or cable. Therefore, the system can be operatedand monitored from both driller’s panel and auxilary remote panel. Wireless auxilany remote panel, which communicates with remotecontrol panel by wireless signal, also can be suppling, lt can improve the safety of driling.

RIGRS key points of koomey BOP control system selection

To control accumulator bop control system​ and safely as well as prevent uncontrollable blowout, oil & natural gas industry standards SY/T5053.2-2007 andAPl Spec. 16D should be followed when you choose and purchase asuitable product.

Factors to be considered should at least be:

• a) Relationship between liquid volume required for closing BOPstacks and liquid volume available from the control system;

• b) Relationship between liquid volume used to close one annularBOP, open the hydranlically operated choke valve(s), and capacityof pump system;

• c)Environmental adaptation;

• d) special requirements on off-shore drilling platform.

1.Options for Controlled objects and Useful LiquidVolume

Useful liquid volume from an accumulator group shall be 2 times

greater than the required volume of closing BOP stecks

2.Requirements for Control System

Liquid VolumeUsed to Close an Annular BOP and Open Choke Valve(s)With the accumulators isolated from service and with one pumpsystems or one power system out of service. The remaining pumpsystem(s) shall have the capacity to close one annular BOP and openchoke valve’s) within two minutes

3.Environmental Adaptation

ComentionalBOP control systemis only suit for ambient temperatureof-13℃-50℃.When ambient temperature goes beyond. A housemade of steel sheet and equipped with thermal insulation andtemperature control should be used.

a)A steel sheet house with thermal insulation and heating issuitable for ambient temperature above -40℃℃;

b)A steel sheet house with thermal insulation and cooling issuitable for ambient temperature below 60’℃;

c) Hose bundle for remote control is suit for-40℃-50℃.However. When ambient temperature goes below 0’℃, dry compressed air mustbe used otherwise the hose would fail to work because of blockeddue to moisture freezing.

4.Special Requirement on Control System for Off-ShoreDrilling Platform

According to oil & natural gas industry standard. Driller’s panel foroff-shore platfomm (without workover) shall be equipping with audibleand visual alams to indicate the conditions of:

a)Low accumulator pressure;

b) Low liguid level in oil reservoir:c) Low pressure of compressed air source;

d)In addition, moisture proof, corrosion resistance should beconsidered seriously, And back-up power source in use (electriccontrol series).

5.Koomey BOP Control System Maintenance

It is suggested that BOP control should be maintaining atfixed periods and entirely maintained within a two-year cycle.

BOP Pressure Control System Key Features and Benefits​

Advanced Automation: Our BOP Control Units, including those with Cameron BOP technology, feature state – of – the – art automation. In emergency scenarios, like a sudden pressure spike, the unit can automatically trigger the BOP within milliseconds. This rapid response, characteristic of high – quality cameron bop control systems. Significantly reduces the risk of a blowout and potential damage to the well and adjacent infrastructure.​

High – Precision Monitoring: These units offer highly accurate monitoring of well conditions. The sensors integrated into our koomey bop control systems can detect even the most minor changes in pressure, flow rate, and other critical parameters. This precision allows for early detection of anomalies, giving operators ample time to take corrective measures before issues escalate.​

Robust Design: Built to endure the harsh conditions typical of oil – producing regions. Our BOP Control Units, be it for onshore or offshore applications, are constructed with durable materials. Whether facing the extreme heat of Middle East deserts or the corrosive salt – laden air of offshore drilling platforms. Our bop equipment, including bop accumulators, is engineering for consistent and reliable performance.​

Remote Operation Capability: In the modern digital era, remote operation is a game – changer. Our BOP Control Units, including those compatible with Schlumberger Cameron setups. Can be operated and monitored from a control center located far from the actual well site. This not only enhances personnel safety but also enables more efficient management of multiple well sites from a single location. Which is a key aspect of effective well control systems.​

API Koomey Unit BOP Accumulator Control Unit application in Oil – Producing Nations​

Onshore Oil Fields: In countries such as Saudi Arabia, Iraq, and the United States, where extensive onshore oil fields are operational, Cameron BOP control systems play a pivotal role. For example, in Saudi Arabia’s large – scale oil fields, our advanced aftermarket bop control systems. With their automation and remote operation features, empower operators to manage numerous wells with ease, ensuring continuous and safe production. The use of reliable bop products, like those with Cameron BOP technology, is widespread in these regions.​

Our BOP control systems are trusting by customers across major oil-producing regions:

South America: From Venezuela to Brazil, our Koomey and Cameron units perform reliably in jungle and offshore platforms alike.

Middle East: Our API-certified BOP panels operate in high-temperature, high-pressure drilling sites in Saudi Arabia, UAE, and Iraq.

Russia and CIS: Our units withstand extreme cold and meet Russian GOST standards for oilfield equipment.

​

Why Choose RIGRS Koomey Unit BOP Accumulator Control Unit?​

Expertise and Experience: With years of experience in the industry, we have an in – depth understanding of the specific requirements of oil – producing nations. Our team of engineers and technicians specializes in designing and manufacturing a variety of BOP solutions, from standard NOV bop control systems to customized aftermarket bop control systems. We are well – versing in working with brands like Schlumberger Cameron and SLB Cameron, ensuring that our products meet the highest international standards.​

Customization Options: We recognize that each oil – production operation is unique. That’s why we offer extensive customization for our BOP products. Whether it’s adapting to specific well conditions or integrating with existing well control systems, we can tailor our offerings, including bop detector systems and bop simulators, to meet your exact needs.​

After – Sales Support: Our commitment to custom ers extends beyond the point of sale. We provide comprehensive after – sales support, covering maintenance services, ready availability of spare parts, and technical assistance. This ensures that your BOP Control Unit, along with other bop products, continues to operate at peak performance throughout its lifespan.​

In conclusion, if you are an oil – producing nation aiming to enhance the safety and efficiency of your oil production operations. Discover our API Spec 16D-compliant NOV BOP control systems for reliable well control. Trusted Cameron and Koomey units safeguard drilling ope.

The post The BOP Control Unit for the Oil – Producing Nations appeared first on RIGRS Oil Machinery.