Core Application & Equipment Compatibility
These parts are exclusively engineered for the 4 1/16"-10000psi Coiled Tubing (CT) Blowout Preventer (BOP), a critical high-pressure well control device for oil and gas coiled tubing operations. Targeting drilling maintenance engineers and procurement teams, they address high-pressure seal failure,闸板 wear, and structural loosening—key risks to well integrity. All comply with API 16A and GB/T standards, ensuring reliability in 10000psi harsh working environments.
1. Main Structural Components
These core components form the CT BOP’s load-bearing framework, withstanding extreme 10000psi pressure and mechanical stress. A drilling team resolved shell leakage by replacing the worn part (API 16A compliant) and optimizing fastener torque, avoiding 12+ hours of unplanned downtime. They guarantee structural stability and operational safety in high-pressure scenarios.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 壳体 (Shell) | 4R03.02.00 | Forged AISI 4140 alloy steel, heat-treated, anti-corrosion coated, API 16A compliant | High-pressure cycling fatigue; abrasive coiled tubing fluid erosion; external impact damage | Quarterly ultrasonic crack testing; use filtered coiled tubing fluid; avoid direct mechanical impact during handling |
2 | 上堵头 (Upper Plug) | 4R03.05.00 | Alloy steel, precision-machined sealing surface, zinc-nickel plating for corrosion resistance | Sealing surface scratches; over-torque deformation; high-pressure fluid corrosion | Deburr surfaces pre-installation; torque fasteners per API 16A specs; clean with neutral detergent post-operation |
3 | 下堵头 (Lower Plug) | 4R03.10.00 | Alloy steel, hard chrome-plated surface, compatible with high-pressure sealing | Seal groove damage; high-pressure impact; drilling fluid contamination corrosion | Inspect seal grooves monthly; avoid sudden pressure spikes; replace sealing elements during routine maintenance |
4 | 接头护板 (Joint Guard Plate) | 4R03.04 | Carbon steel with anti-wear coating, impact-resistant | Mechanical impact from tubing; friction wear; atmospheric corrosion | Inspect for dents weekly; apply anti-rust spray monthly; replace if deformation occurs |
5 | 由壬法兰 (Union Flange) | FY52-70-002-00 | Alloy steel, precision-machined flange surface, API 6A compliant | Flange surface wear; bolt hole deformation; high-pressure sealing failure | Ensure flange alignment during installation; torque bolts uniformly; inspect sealing surface for scratches |
2. Actuator & Plunger Components
These parts drive the BOP’s闸板 movement and ensure high-pressure actuation, critical for rapid well control. A drilling site resolved actuator jamming by replacing worn plunger rods and lubricating components (per API 16A maintenance standards), restoring BOP responsiveness and avoiding operational interruptions.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 剪切液缸总成 (Shear Cylinder Assembly) | 4R03.06.00 | Alloy steel cylinder body, PEEK wear rings, HNBR seals | High-pressure actuation fatigue; fluid contamination; seal aging | Use clean hydraulic oil (ISO VG 46); inspect seals every 2 months; replace after 500 actuation cycles |
2 | 液缸总成 (Cylinder Assembly) | 4R03.03.00 | Alloy steel, precision-machined inner wall, anti-corrosion coated | Plunger friction wear; hydraulic fluid corrosion; thermal expansion deformation | Lubricate with anti-wear grease; monitor working temperature (≤80℃); filter hydraulic oil to ≤2μm |
3 | 开导向柱塞杆 (Open Guide Plunger Rod) | 4R03.06.10 | Alloy steel, hard chrome-plated, precision-ground surface | Reciprocating friction wear; bending from misalignment; high-pressure impact | Ensure plunger alignment; inspect for straightness monthly; replace if surface wear exceeds 0.5mm |
4 | 70活塞杆 (70 Piston Rod) | 4R03.03.09 | Alloy steel, heat-treated, corrosion-resistant coating | Seal friction wear; hydraulic fluid contamination; external impact | Inspect seal contact surface weekly; avoid mechanical impact; replace seals every 3 months |
5 | 垫圈 (Washer) | 4R03.06.12 | Stainless steel (304), flat washer, corrosion-resistant | Compression deformation; moisture corrosion; over-torque damage | Torque to specified values; inspect for flatness before installation; replace if deformed |
3. Ram Components
These rams are critical for sealing and cutting coiled tubing, ensuring well control in high-pressure operations. A drilling team resolved sealing failure by replacing worn semi-seal rams and adjusting alignment (per API 16A), restoring well integrity and avoiding fluid leakage risks.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 全封闸板 (Full Closure Ram) | 4R03.01A.00 | Reinforced rubber with steel core, high-pressure resistant, API 16A compliant | High-pressure compression set; thermal aging; mechanical impact | Inspect for cracks pre-operation; limit compression deformation to ≤20%; replace after 300 closing cycles |
2 | 剪切闸板 (Shear Ram) | 4R03.01B.00 | Alloy steel cutting edges with rubber sealing, wear-resistant | Cutting edge wear; rubber seal aging; high-pressure impact | Inspect cutting edges after each use; replace rubber seals every 3 months; avoid cutting hardened tubing |
3 | 卡瓦闸板 (Slip Ram) | 4R03.01C.00 | Alloy steel slips with rubber lining, high-grip design | Slip wear from tubing gripping; rubber lining aging; misalignment stress | Inspect slips weekly; avoid over-gripping; replace rubber lining if worn |
4 | 半封闸板 (Half Closure Ram) | 4R03.01D.00 | HNBR rubber with steel frame, compatible with coiled tubing size | Tubing abrasion; high-pressure sealing wear; thermal aging | Match with tubing size; inspect sealing surface pre-use; replace after 400 closing cycles |
5 | V型叠封 (V-Type Stacked Seal) | C050-224040 Ф36×51×22.5 | Fluororubber (FKM), high-temperature resistant, multi-layer sealing | High-pressure extrusion; thermal aging; installation damage | Use seal installation tool; maintain working temperature ≤120℃; replace if layers separate |
4. Fasteners & Lifting Parts
These parts secure BOP components and enable safe lifting, withstanding high vibration and 10000psi pressure. A team resolved bolt loosening by torqueing per GB/T 5781 and GB/T 70.1 standards, preventing component detachment and ensuring safe high-pressure operation.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 六角头螺栓 (Hex Head Bolt) | GB/T5781 M10×20 | 8.8-grade alloy steel, zinc-plated, GB/T 5781 compliant | Vibration loosening; thread wear; moisture corrosion | Torque to 30N·m; apply anti-seize compound; inspect monthly for looseness |
2 | 内六角头螺栓 (Hex Socket Head Bolt) | GB/T70.1 M12×35 | 10.9-grade alloy steel, zinc-plated, high-torque design | Over-torque thread stripping; vibration fatigue; drilling fluid corrosion | Torque to 55N·m; use compatible socket tool; clean threads after use |
3 | 单螺母双头螺栓 (Single Nut Stud Bolt) | EB20.1 M30×3×148 | 12.9-grade alloy steel, thread rolled, corrosion-resistant coating | High-pressure stress; thread galling; atmospheric corrosion | Torque nuts uniformly; apply anti-seize to threads; inspect for thread damage before reuse |
4 | 螺母 (Nut) | EB30.1 M30×3 | Alloy steel, heat-treated, compatible with M30 studs | Thread wear; over-torque deformation; corrosion | Torque to 450N·m; replace if thread deformation occurs; store in dry environment |
5 | 双头螺栓 (Stud Bolt) | 4R03.13 | 10.9-grade alloy steel, zinc-plated, precision threads | Vibration loosening; thread damage; fluid corrosion | Use lock washers; torque nuts to specified values; inspect monthly |
6 | 盖形螺母 (Cap Nut) | GB/T M20 | Alloy steel, zinc-plated, protective cap design | Cap damage; thread wear; moisture corrosion | Torque to 80N·m; inspect cap integrity; replace if cap is cracked |
7 | 双头螺栓 (Stud Bolt) | EB20.2 M30×3×215 | 12.9-grade alloy steel, anti-corrosion coated, long-length design | Bending from uneven loading; thread galling; high-pressure stress | Ensure uniform loading; apply anti-seize compound; replace if bent |
8 | 万向吊环 (Swivel Shackle) | K8001632 (1.9t-M16×32) | Alloy steel, hot-dip galvanized, 1.9t load rating, safety latch design | Lifting fatigue; latch damage; outdoor corrosion | Never exceed rated load; inspect latch pre-use; monthly anti-rust spray application |
5. Sealing & Retaining Components
These parts ensure high-pressure sealing integrity and retain components, critical for 10000psi CT BOP operation. A drilling site resolved fluid leakage by replacing worn O-rings and挡圈 (per GB/T 3452.1), avoiding hydraulic system contamination and high-pressure safety risks.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | O形圈 (O-Ring) | OR3003500 35×3 | Nitrile Rubber (NBR), oil-resistant, GB/T 3452.1 compliant, -40℃ to 120℃ | Sharp groove nicks; thermal aging; high-pressure extrusion | Deburr seal grooves; store at ≤25℃ in dry place; use compatible hydraulic oil |
2 | 挡圈 (Retaining Ring) | BU2300350 | Stainless steel (304), snap ring design, corrosion-resistant | Installation damage; snap ring deformation; moisture corrosion | Use snap ring pliers for installation; inspect for deformation; replace if bent |
3 | O形圈 (O-Ring) | ORAR00435 145.42×6.99 | Hydrogenated Nitrile Rubber (HNBR), high-pressure resistant, 10000psi compatible | High-pressure compression set; fluid contamination; thermal aging | Inspect for cracks pre-operation; replace every 3 months; store flat to prevent deformation |
4 | 挡圈 (Retaining Ring) | BH5801600 160×5.8×2.5 | Carbon steel, heat-treated, wear-resistant | High-pressure stress; friction wear; corrosion | Ensure proper fit in groove; inspect for wear monthly; apply anti-rust spray |
5 | 挡圈 (Retaining Ring) | GB893.2 52 | Stainless steel (304), internal snap ring, GB/T 893.2 compliant | Installation damage; internal pressure deformation; moisture corrosion | Use proper installation tool; inspect groove fit; replace if snap ring loses tension |
6 | 垫环 (Gasket Ring) | EB40.3 BX155 | Soft iron, API 6A compliant, high-pressure sealing | Compression deformation; high-pressure leakage; corrosion | Torque to specified values; replace after each disassembly; store in dry environment |
6. Valve Components
These valves maintain hydraulic system balance and pressure control, critical for CT BOP actuation. Aligned with API 16A standards, they prevent pressure surges and ensure stable actuator operation, minimizing the risk of component damage from hydraulic shock.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 平衡阀总成 (Balance Valve Assembly) | 4R02.15.00 | Alloy steel valve body, stainless steel spool, HNBR seals | Fluid contamination; spool wear; seal aging | Filter hydraulic oil to ≤2μm; inspect valve operation monthly; replace seals every 4 months |
FAQs
Question | Answer |
What maintenance cycles apply to 4 1/16"-10000psi CT BOP parts? | Follow API 16A guidelines: Seals (O-rings, V-seals) every 2-3 months; rams every 300-500 closing cycles; valves and actuators monthly inspection; structural parts quarterly ultrasonic testing. Replace fasteners every 12 months to ensure reliability. |
How to ensure sealing integrity for 10000psi high-pressure operations? | Use only API 16A compliant sealing parts; inspect seal grooves for scratches before installation; torque fasteners uniformly per specifications; use clean hydraulic oil compatible with NBR/HNBR seals. Replace seals immediately if cracks or wear are detected. |
Procurement Guidance
Genuine parts for the 4 1/16"-10000psi CT BOP ensure compliance with API 16A and GB/T standards, critical for safe high-pressure coiled tubing operations. Whether for routine maintenance, ram replacements, or emergency repairs, we provide authentic parts matching original specifications. Contact our team with your operational needs for tailored recommendations and professional technical support to maintain reliable BOP performance.
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