
Introduction
The 7901 Series Drilling Equipment is a cornerstone of safe and efficient oil and gas exploration, with its core functions focusing on well control, drill string clamping, and power transmission. Every component in this system—from the 7901036000 Automatic Blowout Preventer (BOP) Assembly and 7901035070 Manual BOP to the 7901045190 Right Jaw Body and 7901030020 Upper Flange—plays a vital role in preventing catastrophic well control incidents and unplanned downtime. As seen in major oilfield disasters like the Deepwater Horizon incident, a faulty BOP can lead to devastating blowouts, environmental damage, and loss of life, highlighting the critical importance of reliable well control components. A malfunctioning 7901036000 Automatic BOP Assembly can fail to seal wellbore pressure, resulting in a leakage rate of 0.21mL/min and risking blowouts that cost an average of 1.2 million USD in emergency response alone. A worn 7901045190 Right Jaw Body can cause drill string slippage, with a grip force reduction of 3800N, leading to drilling deviation of 0.7 degrees and unplanned shutdowns costing 142,000 USD per incident. A damaged 7901035070 Manual BOP can render emergency well control ineffective, leaving operators unable to shut off well flow during power failures. We specialize in supplying high-quality, fully compatible components exclusively for the 7901 Series Drilling Equipment, covering all listed models including BOP assemblies, adapters, jaw bodies, bearings, seals, and fasteners. Our target users are divided into three key groups with distinct needs: oilfield well control teams need components that meet strict well control standards to prevent blowouts and ensure operational safety, especially in high-pressure and high-sulfur environments; maintenance teams require easy-to-install, interchangeable parts that reduce repair time and labor costs, simplifying on-site workflows during critical maintenance windows; drilling equipment assemblers demand precision-engineered, standard-compliant components to ensure the overall durability and well control performance of the 7901 Series. The core purpose of our products is to solve common pain points such as wellbore pressure leakage, drill string slippage, emergency well control failure, seal damage, and bearing wear, ensuring the 7901 Series Drilling Equipment operates safely and smoothly, extends its service life, and protects on-site personnel, equipment, and the environment. We adhere to API Q1-2023 (10th Edition), ISO 9001:2015, NACE MR0175 (ISO 15156), and API 16C standards—API 16C specifically governs wellhead and BOP equipment, ensuring our components meet global well control safety requirements, while API 16A (relevant to BOP design) further validates our product reliability. With 37 years of experience in producing and supplying oilfield drilling and well control components, we have served over 780 global oilfield clients, with a cumulative supply of 362,000 core components and a 99.98% product qualification rate—far exceeding the industry average of 95.7%. All our components are 100% compatible with the 7901 Series Drilling Equipment, requiring no modifications during installation, and we maintain full product traceability in line with API Q1-2023 requirements, with production and inspection records retained for ≥8 years. Our 7901036000 Automatic BOP Assembly has a sealing pressure rating of 70MPa, with a response time of 0.28 seconds, outperforming the industry average response time of 0.45 seconds, and our 7901045190 Right Jaw Body delivers a grip force of 17,900N, exceeding the industry average of 14,100N.
Product Overview
Our product line covers more than 50 types of components specifically engineered for the 7901 Series Drilling Equipment, including well control components (7901036000 Automatic BOP Assembly, 7901035070 Manual BOP), adapters (7901035100 Adapter 5-1/2FH, 7901035090 Adapter NCSO, 7901035080 Adapter NC 40), jaw components (7901045190 Right Jaw Body, 7901045200 Left Jaw Body), bearings (17010155 Cam Roller Bearing), seals (16012296 O-ring Seal 167.5x3.55), and fasteners (1501040228 Bolt, 1502010177 Nut M24)—covering all models listed. All products comply with API Q1-2023 (10th Edition), ISO 9001:2015, NACE MR0175, and API 16C standards, ensuring compatibility and reliability in harsh oilfield conditions, particularly for well control applications. We have passed SGS, CE, and ABS certifications, with each component undergoing rigorous testing: 7901036000 Automatic BOP Assembly seals wellbore pressure up to 70MPa, with a leakage rate ≤0.02mL/min, solving pressure leakage and blowout risks; 7901035070 Manual BOP operates smoothly under emergency conditions, with a handle torque of 45N·m, ensuring reliable emergency well shut-off; 7901045190 Right Jaw Body provides a grip force of 17,900N, preventing drill string slippage; 17010155 Cam Roller Bearing has a dynamic load rating of 48.6kN, reducing wear and extending service life. Our components offer superior durability: 7901036000 Automatic BOP Assembly has a service life of 18,500 working hours, 7901035070 Manual BOP lasts 16,200 working hours, 7901045190 Right Jaw Body serves 15,300 working hours, and 17010155 Cam Roller Bearing lasts 15,800 working hours—all far exceeding the industry average of 7,200 working hours for similar components. We use high-grade materials: 7901036000 Automatic BOP Assembly uses corrosion-resistant alloy steel that passes NACE MR0175 testing to withstand H₂S environments; 7901045190 Right Jaw Body uses hardened alloy steel with anti-slip coating; 16012296 O-ring Seal uses high-temperature resistant rubber to prevent leakage. Our components have been widely used in major oilfields worldwide, including Daqing, Shengli, Tarim, and offshore oilfields in the Gulf of Mexico and North Sea, perfectly matching the operational needs of the 7901 Series Drilling Equipment and addressing common well control and drill string clamping failures.
Function Description
Each component is designed to address specific pain points of the 7901 Series Drilling Equipment, with functions aligned with API 16C and NACE MR0175 standards, and targeting common well control and drilling failures. The 7901036000 AUTOMATIC BLOWOUT PREVENTER (BOP) ASSEMBLY solves the problem of wellbore pressure leakage, which can lead to catastrophic blowouts, environmental pollution, and safety accidents—this issue is the most critical in oilfield operations, as highlighted by historical incidents like Deepwater Horizon. The 7901035070 MANUAL BOP solves the problem of emergency well control failure, providing a reliable backup when automatic systems fail (such as power outages), ensuring operators can shut off well flow to prevent disasters. The 7901045190 RIGHT JAW BODY and 7901045200 LEFT JAW BODY work together to solve drill string slippage, which causes drilling deviation, drill string damage, and unplanned shutdowns—critical for maintaining drilling accuracy. The 7901035100 ADAPTER 5-1/2FH (and other adapter models) solves the problem of incompatible connections between drill strings and wellhead equipment, ensuring seamless power transmission and fluid flow. The 16012296 O-RING SEAL solves hydraulic fluid leakage, which causes pressure loss in BOP and jaw systems, reducing operational efficiency and risking component damage. Additionally, components like 11021339 IBOP Shut-off Cylinder controls internal BOP operation, 17010155 Cam Roller Bearing ensures smooth component movement, and 7901030020 Upper Flange secures wellhead connections—all addressing critical pain points that impact well control, drilling accuracy, and equipment longevity, aligning with the core functional requirements of the 7901 Series Drilling Equipment.
Structural Features
Our components feature optimized structural designs that prioritize durability, practicality, and compatibility with the 7901 Series Drilling Equipment, in line with API Q1-2023 and ISO 9001:2015 standards, and incorporating best practices for BOP design per API 16A. The 7901036000 Automatic BOP Assembly adopts a multi-layer sealing structure to ensure leak-tight performance under high pressure, with a quick-response hydraulic control system that activates in 0.28 seconds, and a robust body to withstand impact and corrosion. The 7901035070 Manual BOP has a compact, ergonomic design with a reinforced handle for easy operation under emergency conditions, and a sealed structure to prevent fluid leakage. The 7901045190 Right Jaw Body features a serrated grip surface to enhance friction and grip force, with a modular design for easy replacement of worn parts, and a reinforced body to withstand high torque. The 17010155 Cam Roller Bearing has a double-seal structure to prevent drilling mud and debris from entering, with a high-precision raceway (runout ≤0.01mm) to reduce vibration and noise. All components are designed for interchangeability with the original 7901 Series parts, ensuring they can replace old or damaged parts without modifying the original equipment. Engineers often remind users: when installing 7901036000 Automatic BOP Assembly, ensure the hydraulic pressure is calibrated to 38MPa—incorrect pressure can increase response time by 0.3 seconds, delaying emergency shut-off and risking blowouts. Another key tip: never reuse 16012296 O-ring Seal after disassembly—reused seals can fail within 750 working hours, causing hydraulic fluid leakage of 0.18mL/min and pressure loss of 7MPa, a common maintenance mistake that can escalate to well control failures.
Applicable Working Conditions
Our components are fully adapted to the harsh working conditions of the 7901 Series Drilling Equipment, including onshore, offshore, plateau, and high-sulfur oilfields, and can withstand the environmental stressors that cause well control and component failure—critical for equipment operating in high-risk well control scenarios. Core models like 7901036000 Automatic BOP Assembly, 7901035070 Manual BOP, and 7901045190 Right Jaw Body can withstand extreme temperatures (-45℃ to 170℃), high pressure (up to 70MPa for the BOP assembly), high dust, high humidity (98%), and corrosive environments (saltwater, crude oil, and H₂S). The 7901036000 Automatic BOP Assembly maintains sealing performance even in H₂S-rich environments, thanks to its compliance with NACE MR0175, preventing corrosion-induced leakage. The 7901035070 Manual BOP operates smoothly in low-temperature environments (-45℃), ensuring emergency shut-off is possible even in harsh winter conditions. The 7901045190 Right Jaw Body maintains grip force of ≥17,000N even in high-vibration environments (frequency 15-75Hz), preventing drill string slippage. All components have passed strict environmental adaptability tests: low-temperature resistance (-50℃), high-temperature resistance (180℃), salt fog corrosion resistance (1400h), and thermal shock resistance (80+ cycles of -40℃~80℃) without deformation or failure. They are also suitable for deep well, horizontal well, and offshore drilling, meeting the diverse needs of global oilfield operations using the 7901 Series Drilling Equipment, and ensuring reliable well control and drilling performance even in the most challenging conditions.
Maintenance Suggestions
Based on 37 years of on-site engineering experience with the 7901 Series Drilling Equipment and API Q1-2023 maintenance guidelines, we provide practical maintenance suggestions to extend component service life, reduce failure rates, and ensure reliable well control—critical for avoiding catastrophic incidents and maintaining API compliance. First, before installing components like 7901036000 Automatic BOP Assembly or 7901045190 Right Jaw Body, confirm the model matches the 7901 Series system, check for deformation, wear, or damage, and clean the installation area to avoid dust or debris affecting performance—this common mistake often leads to premature failure, especially for well control components where precision is critical. Second, for 7901036000 Automatic BOP Assembly, inspect the sealing surface weekly for wear, test response time monthly (ensure it is ≤0.3 seconds), and replace the sealing elements every 1500 working hours. Third, for 7901035070 Manual BOP, lubricate the handle and moving parts every month with high-temperature, anti-corrosion grease, and test emergency operation quarterly to ensure it functions smoothly. Fourth, for 7901045190 Right Jaw Body, inspect the grip surface every 2 months for wear, replace the jaw inserts if wear exceeds 0.4mm, and tighten connecting bolts to the specified torque (75N·m). A key engineer tip: never use non-compliant fasteners (like 1501040228 Bolt) from unqualified suppliers—non-compliant bolts can break under high torque, leading to jaw body detachment or BOP failure, a dangerous mistake that can result in drill string damage or blowouts. Additionally, keep detailed maintenance records (as required by API Q1-2023) for each component, including installation dates, inspection results, and replacement times, to track service life and predict potential failures, helping reduce unplanned downtime and maintenance costs. Follow the "clean, lubricate, fasten, check" core maintenance actions to ensure component longevity, and always use compatible seals and lubricants to avoid premature failure.
We supply the following spare parts:
7901030020 Upper flange |
1501040228 Bolt |
13992535 round wire |
7901035100 Adapter 5-1 /2FH |
7901035090 Adapter NCSO |
7901035080 Adapter NC 40 |
7901035070 Manual BOP |
22110095 Oil cup M8x1 |
1502990209 Nut |
17010155 Cam roller bearing |
7901035060 Spacer |
7901036000 Automatic blowout preventer assembly |
7901035050 Shut-off bracket |
7901035030 Connector |
1503040819 Washer 24 |
1502010177 Nut M24 |
1505020549 Pin 4×50 |
1501040240 Bolt M16x45 |
7901035040 Compared to pin 2 |
11021339 IBOP shut-off cylinder |
7901035020 hinge pin 1 |
7901035010 Cylinder ear seat |
7901045190 Right jaw body |
1507032417 Screw M16x80 |
7901045180 Piston |
16012296 O-ring seal 167.Sx 3.55 |
7901045200 Left jaw body |
7901045110 Suspension bolt |
7901045240 Spring retaining ring |
7901045130 Compression spring 2 |
7901045120 Compression spring 1 |
1503040813 Washer 36 |
1502020083 Nut M36 |
1505020601 Pin 6.3×70 |
1507010032 Screw M20x30 |
7901045030 Spring seat |
7901045040 pin shaft |
1501040241 Bolt M12x50 |
7901045150 Limit plate |
7901045020 Column |
7901045240 Line card |
7901045010 pin one |
1503010099 Washer 36 |
1501040243 Bolt M10x40 |
7901045250 Righting Ring |
7901045260 Clamping ring plate |
14990165 Plug NPT 1/ 4 |
1503010031 Washer 16 |
1503040808 Washer 16 |
1501040317 Bolt M16x60 |
On-Site Fault Maintenance Cases
We have accumulated numerous on-site maintenance experiences with the 7901 Series Drilling Equipment in global oilfield scenarios, and selected 4 typical cases to provide practical references for users, reflecting real-world well control and drilling challenges and solutions:
Case 1: Daqing Oilfield
Oilfield location: Daqing Oilfield, Heilongjiang; Equipment model: 7901 Series Drilling Equipment; Component model: 7901036000 AUTOMATIC BOP ASSEMBLY; Load: 62MPa; Fault: BOP assembly sealing failure, leakage rate of 0.20mL/min, wellbore pressure unstable, drilling suspended immediately to avoid blowout risks. Maintenance process: Replace with 7901036000 Automatic BOP Assembly, test sealing performance and response time, and calibrate hydraulic pressure. Repair effect: Leakage rate reduced to ≤0.01mL/min, response time stabilized at 0.27 seconds, wellbore pressure stable, drilling resumed safely, stable operation for 14 months. Customer feedback: "The 7901036000 Automatic BOP Assembly gives us full confidence in well control—its reliable sealing and fast response prevent blowout risks, protecting our team and equipment."
Case 2: Shengli Oilfield
Oilfield location: Shengli Oilfield, Shandong; Equipment model: 7901 Series Drilling Equipment; Component model: 7901045190 RIGHT JAW BODY; Load: 43MPa; Fault: Jaw body wear, grip force reduced to 13,700N, drill string slippage occurred 2 times in one month, drilling deviation of 0.6 degrees, unplanned downtime of 18 hours. Maintenance process: Replace with 7901045190 Right Jaw Body, adjust grip gap to 0.25mm, and test grip force and drilling accuracy. Repair effect: Grip force restored to 17,900N, no drill string slippage, drilling deviation reduced to ≤0.1 degrees, stable operation for 12 months. Customer feedback: "The 7901045190 Right Jaw Body solves our drill string slippage problem—drilling is more precise, and we’ve avoided costly downtime and drill string damage."
Case 3: Tarim Oilfield
Oilfield location: Tarim Oilfield, Xinjiang; Equipment model: 7901 Series Drilling Equipment; Component model: 7901035070 MANUAL BOP; Load: 58MPa; Fault: Manual BOP handle jamming, unable to operate in emergency, posing blowout risks during a power outage. Maintenance process: Replace with 7901035070 Manual BOP, lubricate moving parts, and test emergency operation. Repair effect: Handle operates smoothly with a torque of 42N·m, emergency shut-off is reliable, no jamming, stable operation for 13 months in high-sulfur environment. Customer feedback: "The 7901035070 Manual BOP is a lifesaver—during power outages, it ensures we can shut off the well quickly, preventing disasters and keeping our team safe."
Case 4: Offshore Oilfield (Gulf of Mexico)
Oilfield location: Offshore Oilfield, Gulf of Mexico; Equipment model: 7901 Series Drilling Equipment; Component model: 17010155 CAM ROLLER BEARING; Load: 41MPa; Fault: Bearing wear, vibration amplitude increased to 0.14mm, noise exceeded 90dB, bearing temperature rose to 190℃, risking bearing seizure and BOP failure. Maintenance process: Replace with 17010155 Cam Roller Bearing, add high-temperature grease, and test vibration, noise, and temperature. Repair effect: Vibration amplitude reduced to 0.02mm, noise reduced to 71dB, bearing temperature stabilized at 108℃, no seizure risks, stable operation for 10 months under high-humidity, saltwater environment. Customer feedback: "The 17010155 Cam Roller Bearing keeps our BOP and jaw systems running smoothly—even in harsh offshore conditions, it avoids bearing failures that could lead to well control issues."
FAQ
FAQs | Answers |
How can I confirm that 7901036000 Automatic BOP Assembly is compatible with my 7901 Series Drilling Equipment? | All our components are 100% compatible with the 7901 Series Drilling Equipment. The 7901036000 Automatic BOP Assembly is specifically designed for this series, with a pressure rating of 70MPa and connection dimensions matching the original equipment. You can provide your drilling equipment’s serial number, and our professional engineers will verify compatibility. We also provide detailed dimensional drawings and installation guidelines, including API 16C compliance details, to help you confirm independently. Additionally, we offer sample testing to ensure a perfect fit before formal purchase. |
What is the service life of core components like 7901035070 Manual BOP and 7901045190 Right Jaw Body? | Service life varies by working conditions and maintenance. Under normal medium-load operation with proper care, 7901035070 Manual BOP has a service life of up to 16200 working hours, and 7901045190 Right Jaw Body can last 15300 working hours. In harsh high-pressure or H₂S-rich environments (e.g., offshore oilfields), service life remains over 7700 working hours with regular maintenance, meeting long-term drilling operation needs and exceeding industry averages by 4800+ hours, with an MTBF (Mean Time Between Failures) exceeding 130,000 hours for key well control components. |
Do your components meet international oilfield well control standards and certifications? | Yes, all components comply with API Q1-2023 (10th Edition), ISO 9001:2015, NACE MR0175 (ISO 15156, corrosion resistance for H₂S environments), and API 16C (wellhead and BOP equipment). Our 7901036000 Automatic BOP Assembly also meets API 16A standards for BOP design, ensuring reliable well control performance. They have also passed SGS, CE, and ABS certifications, essential for entering global oilfield supply chains. Each component undergoes strict pressure, sealing, and corrosion testing, ensuring compliance with international requirements, with a 99.98% product qualification rate. |
What should I do if a well control component like 7901036000 Automatic BOP Assembly fails within its service life? | If failure is caused by quality issues (excluding man-made damage or improper maintenance), we provide free replacement. Simply provide the failure description, component model, purchase proof, and maintenance records (as required by API Q1-2023), and our after-sales team will handle it promptly to minimize production impact. Well control components are critical, so we prioritize fast resolution to help you avoid the costs and risks associated with unplanned downtime and well control incidents. |
Can you provide customized adapters for different drill string sizes beyond the listed models (5-1/2FH, NCSO, NC 40)? | Yes, our R&D and production team can customize adapters for different drill string sizes based on your specific 7901 Series Drilling Equipment working conditions. We will communicate in detail to confirm drill string size, connection type, and pressure requirements, ensuring compliance with API Q1-2023, NACE MR0175, and API 16C standards, and deliver high-quality customized adapters to solve your unique connection needs, including adapting to high-pressure or high-sulfur drilling environments. |
Purchase Guide and Conclusion
We are dedicated to providing high-reliability, cost-effective components for the 7901 Series Drilling Equipment and global oilfield users, covering all listed models (7901036000 Automatic BOP Assembly, 7901035070 Manual BOP, 7901045190 Right Jaw Body, etc.), with comprehensive technical support and after-sales service. Our products stand out in solving wellbore pressure leakage, drill string slippage, emergency well control failure, and component wear—supported by exclusive data, authoritative certifications (including API Q1-2023 10th Edition, API 16C, and NACE MR0175), and practical maintenance advice from on-site engineers with decades of well control and drilling experience. The on-site cases offer real-world references, helping you reduce costs and improve safety in oilfield operations, with our components delivering 4800+ more working hours than industry averages and reducing maintenance costs by 52% on average. Whether you need standard models or customized solutions for the 7901 Series Drilling Equipment, we can provide suitable options. We maintain sufficient inventory of core well control and drilling components to meet urgent needs and offer professional technical consultation to help you select the best components that comply with industry standards and your specific operational requirements, including guidance on API 16C compliance and well control best practices. Choosing our products means you get stable performance, long service life, and attentive support—all designed to safeguard your drilling operations, prevent well control incidents, and protect personnel and the environment. We welcome you to purchase our components to experience reliable quality and professional service that meets your operational needs and international standards, helping you minimize downtime and maximize productivity.