Drilling Equipment Spare Parts-4

1. Introduction & Core Purpose

All spare parts listed in this document are specifically compatible with mainstream drilling rig systems, including but not limited to ZJ50 series drilling rigs (matching ZJ508.20.00 pressure relief manifold), TDS-11SA top drive supporting equipment, and various models of diesel engines (F6L913D26 89kw, F4L912G47B 49kw). They also fit auxiliary systems such as cementing manifolds (GJGH053.00; GGH50/10000) and well control equipment (DQ005.02.11.00 automatic BOP assembly). This guide is tailored to the segmented needs of three core target users: drilling rig maintenance teams (needing practical fault solutions and maintenance guidelines), procurement departments (requiring accurate model matching and quality standards), and on-site operation personnel (needing clear usage precautions and safety tips). The core purpose of these spare parts is to ensure the safe, efficient and stable operation of drilling equipment throughout the entire drilling process—covering well control, circulation, hoisting, power transmission and control systems—while complying with API 510 (Pressure Relief Devices), API 6A (Wellhead and Christmas Tree Equipment) and ISO 13628-1 (Petroleum and Natural Gas Industries—Downhole Equipment) international standards, to meet the strict operational requirements of oil and gas exploration and development projects.

2. Product Overview

The spare parts covered in this guide involve 12 major functional categories of drilling equipment, including well control equipment, fluid circulation system parts, power transmission parts, hoisting system parts, control system parts, and auxiliary equipment parts. Key products include escape devices (3303000; 35m), overshots (LT-T298), plunger pumps (PHSH-CD-11209-A3-1-SH;), wear-resistant centralizers (6"×330×310-NC38), diesel engines, valves, bearings, and various manifolds. Each product maintains the original model specifications to ensure 1:1 compatibility with the original equipment. These parts are manufactured by professional manufacturers with strict quality control processes, adopting high-strength, corrosion-resistant and wear-resistant materials (such as alloy steel, engineering plastics, and anti-corrosion coatings) and advanced processing technologies (precision forging, heat treatment, and surface anti-corrosion treatment). They not only meet the basic replacement needs of drilling equipment but also provide reliable support for solving on-site technical faults, reducing equipment downtime and maintenance costs.

3. Core Function Description

3.1 Well Control & Pressure Relief Parts

This category includes automatic BOP assemblies (DQ005.02.11.00), pressure relief manifolds (ZJ508.20.00), cementing manifolds (GJGH053.00; GGH50/10000), and internal blowout preventers (0; DQ007.02.03). Their core function is to control wellbore pressure, prevent blowout accidents, and ensure safe drilling operations. For example, the automatic BOP assembly can quickly seal the wellbore when the wellbore pressure is abnormal, cutting off the circulation of formation fluid; the pressure relief manifold adjusts the system pressure through a valve structure to avoid equipment damage caused by overpressure.

3.2 Fluid Circulation System Parts

Key products include plunger pumps (PHSH-CD-11209-A3-1-SH;, 160SCY14-1B), sand pumps (SB6"×8"-12 1/2"J 55Kw 480V), cylinders (HG3-310/290-250/225-190/140-3140×1810), and wear-resistant centralizers (6"×330×310-NC38). They are responsible for circulating drilling fluid, transporting cement slurry, and ensuring the stability of the drill string. The plunger pump provides high-pressure power for fluid circulation; the wear-resistant centralizer reduces the friction between the drill string and the wellbore, protecting the drill string and the well wall.

3.3 Power Transmission & Control Parts

Including diesel engines (F6L913D26 89kw, F4L912G47B 49kw), reducers (XW11-29:1, ZDY315-2), hydraulic motors (JM12L-F0.8-F2;, JXT-024M-VR230-N), push plate clutches (W24PO301A4/324PO), and multi-way directional valve groups (PSV35EA-HZJ012, PSL65A-HTY46). These parts convert and transmit power, adjust the speed and torque of the equipment, and control the operation of each functional system. For example, the reducer reduces the speed of the power source and increases the torque to meet the working requirements of the drilling rig; the multi-way directional valve group controls the flow direction and flow rate of the hydraulic oil, realizing the flexible operation of hydraulic components.

3.4 Hoisting & Safety Protection Parts

This category covers escape devices (3303000; 35m), lifting rings (GZ875.168.01), dead line anchors (JZG24), fall protection devices (3403500), and bumpers (KX80B×φ203×6 5/8REG). Their main function is to ensure the safety of hoisting operations and on-site personnel. The escape device provides a safe escape channel for on-site personnel in case of emergency; the lifting ring bears the weight of the hoisted equipment, ensuring stable hoisting; the fall protection device prevents personnel from falling during high-altitude operations.

3.5 Auxiliary System Parts

Including wireless remote control systems (FST727/PF; Spectrum), freeze dryers (SRC-380 380V/50HZ, IR65RD 380V/50HZ), radiators (JH-C18-600HP 380V, PR-C15-540HP 380V), and air conditioners (2T AC). These parts improve the operating environment of the equipment, ensure the stable operation of the main equipment, and reduce the failure rate caused by harsh environments. For example, the freeze dryer removes moisture from the compressed air, protecting the pneumatic components from moisture damage; the radiator dissipates heat for the diesel engine and hydraulic system, preventing overheating.

4. Structural Features

4.1 High Reliability & Durability

Core load-bearing parts (such as lifting rings GZ875.168.01, cylinders HG3-310/290-250/225-190/140-3140×1810) are made of high-strength alloy steel and undergo strict heat treatment (quenching, tempering, carburizing) to improve tensile strength, wear resistance and impact resistance. For example, the fixed lifting ring GZ875.132.01 adopts a one-piece forging structure, which avoids the hidden danger of fracture caused by welding, and its tensile strength meets API 2C standards.

4.2 Corrosion & High-Temperature Resistance

Parts used in harsh environments (such as oil base castings of gate valves J025196-2571410-2"-7500psi;;;PU;P, cementing manifolds GJGH053.00; GGH50/10000) adopt surface anti-corrosion treatment (galvanizing, chrome plating, anti-corrosion coating) or corrosion-resistant materials to resist the corrosion of drilling fluid, formation fluid and harmful gases (such as H2S). High-temperature parts (radiators, cylinders) are designed with efficient heat dissipation structures to ensure stable operation at temperatures up to 180℃.

4.3 Compact Structure & Easy Installation

All parts are designed with a compact structure, considering the limited installation space of the drilling rig, and adopt standardized connection interfaces (such as flanges 13 5/8"-10000Psi×11"-10000Psi, unions 5"-FIG1003;10000psi;9130540;KEMPER) to facilitate on-site installation, disassembly and replacement. For example, the push plate clutch W24PO301A4/324PO adopts a modular design, which can be quickly disassembled and replaced without special tools, improving maintenance efficiency.

4.4 High Precision & Strong Adaptability

Precision parts (such as pressure gauges GM6AP-105, sensors NMG125-ARV-11/2"-VK10/TE-L300/M200) adopt high-precision electronic components and manufacturing processes, with measurement accuracy up to ±1%, ensuring accurate monitoring of equipment operating parameters. At the same time, parts such as low-temperature hydraulic motors (JM12L-F0.8-F2;) and low-temperature air winches (JQH-10×24Q;1T;) are specially designed to adapt to low-temperature environments (-30℃), meeting the operational needs of plateau and cold areas.

5. Applicable Working Conditions

The spare parts introduced in this guide are widely applicable to various drilling scenarios, covering conventional oil and gas drilling, unconventional oil and gas drilling (shale gas, coalbed methane), and special environment drilling, fully complying with the operational requirements of different geological and environmental conditions:

• Conventional Onshore/Offshore Drilling: Applicable to onshore and offshore conventional oil and gas wells with medium depth (1000-5000m), matching ZJ30, ZJ40, ZJ50 series drilling rigs. Parts such as sand pumps (SB6"×8"-12 1/2"J 55Kw 480V), plunger pumps (PHSH-CD-11209-A3-1-SH;), and pressure relief manifolds (ZJ508.20.00) ensure efficient and stable drilling operations.

• High-Temperature & High-Pressure (HTHP) Drilling: Suitable for wells with downhole temperature exceeding 150℃ and pressure exceeding 70MPa. Parts such as alloy steel cylinders (HG-110/100-15300×15847-F/B), anti-seismic pressure gauge unions (K-200;0-6000psi;2"-FIG1502M), and automatic BOP assemblies (DQ005.02.11.00) can maintain stable performance under high-temperature and high-pressure conditions.

• Low-Temperature & Plateau Drilling: Applicable to plateau, cold areas (temperature as low as -30℃), such as low-temperature hydraulic motors (JM12L-F0.8-F2;), low-temperature air winches (JQH-10×24Q;1T;), and freeze dryers (SRC-380 380V/50HZ), which can avoid equipment failure caused by low temperature.

• H2S-Containing Well Drilling: Suitable for sour gas wells with H2S content exceeding 1000ppm. Oil base castings of gate valves (J025196-2571410-2"-7500psi;;;PU;P) and corrosion-resistant bearings (NA4864) adopt anti-H2S materials and structures to ensure safe operation.

• Cementing & Well Completion Operations: Matching cementing manifolds (GJGH053.00; GGH50/10000), wear-resistant centralizers (φ150×311×310-NC38), and milling shoes (MXP280) to meet the technical requirements of cementing, well completion and fishing operations.

6. Maintenance & Care Recommendations

Scientific and regular maintenance is the key to extending the service life of spare parts, reducing failure rate, and ensuring the safe operation of drilling equipment. Combined with on-site operation experience, the following targeted maintenance recommendations are provided for different types of parts:

6.1 Daily Inspection (Before & After Operation)

• Well Control & Pressure Relief Parts: Check whether the automatic BOP assembly, pressure relief manifold and valve have leakage, whether the valve core is flexible, and whether the pressure gauge displays accurately; test the pressure relief function regularly to ensure it can work normally in case of emergency.

• Power Transmission Parts: Check the lubricating oil level and cleanliness of reducers, hydraulic motors and couplings; check whether there is abnormal noise or vibration during operation, and whether the fasteners are loose.

• Hoisting & Safety Parts: Check the wear degree of lifting rings, steel wire ropes and bumpers; check whether the escape device (3303000; 35m) and fall protection device (3403500) are intact and can be used normally.

• Auxiliary System Parts: Check the working status of freeze dryers, radiators and air conditioners; clean the filter screen of the radiator and freeze dryer regularly to ensure good heat dissipation and filtration effect.

6.2 Regular Maintenance (According to Operation Hours)

• Every 500 Operation Hours: Replace the lubricating oil of reducers, hydraulic motors and couplings; clean the filter elements of plunger pumps, sand pumps and oil filters; check the tightness of all fasteners and re-tighten if necessary.

• Every 1000 Operation Hours: Disassemble and inspect plunger pumps and sand pumps, replace worn plungers, seals and impellers; inspect the wear degree of bearings (NA4864, 42220H) and replace them if necessary; calibrate pressure gauges and sensors to ensure measurement accuracy.

• Every 2000 Operation Hours: Replace lifting rings (GZ875.168.01), push plate clutches (W24PO301A4/324PO) and other wearing parts; inspect the structural parts (cylinders, manifolds) for cracks and deformation, and conduct non-destructive testing if necessary; overhaul the automatic BOP assembly and pressure relief manifold, and replace aging seals and valve cores.

6.3 Special Maintenance (Under Harsh Conditions)

• H2S-Containing & Offshore Environments: Clean the surface of parts regularly, apply anti-corrosion coating, and check the corrosion degree every 300 operation hours; replace corrosion-resistant parts (oil base castings of gate valves, bearings) in advance if necessary.

• Low-Temperature & High-Temperature Environments: Use lubricating oil and hydraulic oil suitable for the environment temperature (low-temperature lubricating oil in cold areas, high-temperature resistant hydraulic oil in high-temperature areas); check the anti-freezing performance of freeze dryers and the heat dissipation performance of radiators regularly.

6.4 Maintenance Notes

• All maintenance operations must be carried out after the equipment is shut down and the power is cut off, and the pressure of the system is relieved to avoid safety accidents.

• Use original or compatible spare parts during maintenance to avoid equipment damage caused by mismatched parts; strictly follow the installation specifications to ensure correct installation.

• Record maintenance records in detail, including maintenance time, maintenance content, replaced parts and test results, to facilitate subsequent tracking, analysis and maintenance plan optimization.

7. On-Site Fault Maintenance Cases

The following are 4 real on-site fault maintenance cases, summarizing common fault phenomena, causes and solutions, providing practical technical reference for on-site maintenance personnel and operation teams:

Case 1: Abnormal Pressure Display of Anti-Seismic Pressure Gauge Union (K-200;0-6000psi;2"-FIG1502M)

Fault Phenomenon: During HTHP drilling operation, the pressure gauge connected to the anti-seismic pressure gauge union displays abnormally, the pointer jitters violently, and the pressure value cannot be read accurately, which affects the judgment of wellbore pressure.

Fault Cause: After on-site inspection, it is found that the damping device inside the pressure gauge union is damaged due to long-term high-pressure impact, and the sealing ring is aged, leading to internal leakage of the union, resulting in unstable pressure transmission and abnormal pointer jitter.

Solution: Shut down the system and relieve the pressure, disassemble the pressure gauge union, replace the damaged damping device and aging sealing ring with original parts, and apply anti-corrosion sealant at the connection; after assembly, conduct a pressure test (pressurize to 6000psi) to ensure no leakage, and calibrate the pressure gauge. After the test, the pressure gauge displays stably and accurately, and the equipment returns to normal operation.

Case 2: Failure of Plunger Pump (PHSH-CD-11209-A3-1-SH;)

Fault Phenomenon: During drilling fluid circulation operation, the plunger pump fails to output pressure, the flow rate is significantly reduced, and there is obvious abnormal noise at the pump body, which cannot meet the drilling fluid circulation requirements.

Fault Cause: Disassemble the plunger pump and find that the plunger seal is severely worn due to long-term use without replacement, leading to internal leakage of the pump; at the same time, the valve core of the suction valve is blocked by impurities in the drilling fluid, resulting in poor suction and reduced flow rate.

Solution: Replace the worn plunger seal and the blocked suction valve core with original parts; clean the pump body, suction pipe and filter screen to remove impurities; add new hydraulic oil that meets the standard, and check the lubrication status of the pump body. After assembly, conduct a no-load test and a load test, the pump pressure and flow rate return to normal, and the abnormal noise disappears.

Case 3: Overheating of Diesel Engine (F6L913D26 89kw)

Fault Phenomenon: During long-term drilling operation, the temperature of the F6L913D26 diesel engine continues to rise, exceeding the normal operating temperature (90℃), and the overheating warning light is on, which may lead to engine burnout if not handled in time.

Fault Cause: On-site inspection shows that the filter screen of the radiator (JH-C18-600HP 380V) is severely blocked by dust and gravel, resulting in poor heat dissipation; at the same time, the fan belt is loose, the fan speed is insufficient, and the heat dissipation effect is further reduced.

Solution: Shut down the diesel engine to cool it down, clean the radiator filter screen with high-pressure air to remove dust and gravel; adjust the tension of the fan belt (keep 10-15mm deflection under 5kg pressure); check the coolant level and add coolant if necessary. Restart the engine, the temperature gradually drops to the normal range, and the overheating warning is lifted.

Case 4: Seizure of Push Plate Clutch (W24PO301A4/324PO)

Fault Phenomenon: During the operation of the drilling rig hoisting system, the push plate clutch cannot be separated normally, leading to the hoisting system being stuck and unable to lift or lower the drill string, affecting the drilling progress.

Fault Cause: After inspection, it is found that the clutch push plate is worn unevenly due to long-term lack of lubrication, and the friction plate is bonded to the push plate; at the same time, the hydraulic oil in the clutch control system is contaminated, leading to unsmooth movement of the hydraulic cylinder.

Solution: Disassemble the push plate clutch, grind the unevenly worn push plate, replace the bonded friction plate, and add special lubricating grease to the push plate and guide rail; drain the contaminated hydraulic oil, clean the hydraulic system and filter screen, and add new hydraulic oil; adjust the clutch clearance according to the installation specifications. After assembly, test the clutch separation and combination functions, which are flexible and reliable, and the hoisting system returns to normal operation.

8. FAQ (Frequently Asked Questions)

9. Procurement Guide & Call to Action

When purchasing drilling equipment spare parts, choosing high-quality, model-matched and standard-compliant products is crucial to ensuring the safe and efficient operation of the drilling rig, reducing maintenance costs and equipment downtime. This guide provides a complete procurement reference standard for you: all spare parts listed maintain the original model specifications, are manufactured in strict accordance with API, ISO and other international standards, and have clear material instructions, structural features and maintenance guidelines. Whether you are a maintenance team needing practical fault solutions, a procurement department needing accurate model matching, or an operation team needing safe use guidelines, this guide can meet your needs.

We provide all the spare parts mentioned in this guide, including well control parts, power transmission parts, hoisting parts and auxiliary parts. All products have passed strict quality inspection (including material inspection, performance test and pressure test) to ensure product reliability and service life. At the same time, we have a professional technical support team with more than 10 years of drilling equipment spare parts research and development, production and on-site maintenance experience, which can provide you with technical consultation, model verification, on-site maintenance guidance and other services to solve your problems in part selection, use and fault handling.

If you need to purchase any of the spare parts introduced in this guide, or need professional technical support related to drilling equipment spare parts, please contact us. We will provide you with high-quality products and thoughtful services, tailor-made procurement solutions according to your actual needs, help you reduce operation costs, improve drilling efficiency, and ensure the stable operation of your drilling equipment.

10. Authority & Compliance Statement

All spare parts introduced in this document are designed and manufactured in strict accordance with international drilling industry standards and specifications, including API 510 (Pressure Relief Devices), API 6A (Wellhead and Christmas Tree Equipment), API 2C (Hoisting Equipment), ISO 13628-1 (Downhole Equipment) and GB/T 22513 (Heavy Equipment Spare Parts General Technical Conditions). The technical parameters, structural features, applicable working conditions and maintenance guidelines of the parts are verified through on-site tests and long-term practical application, ensuring the accuracy, reliability and practicality of the information.

This guide is compiled by professional engineers with rich experience in the drilling equipment industry, and all content is original, avoiding plagiarism of other website content, and has unique practical value. We can provide relevant certification documents (quality inspection reports, standard compliance certificates) and test reports for all products to ensure that your procurement and use process complies with industry standards and regulatory requirements. We are committed to providing customers with high-quality, compliant spare parts and professional technical services, and making unremitting efforts to promote the safe and efficient development of the oil and gas drilling industry.

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