Core Application & Target User Demand
This guide covers shear ram components exclusively compatible with 13 5/8”-5000psi shear-type Ram BOP. Designed for oil and gas drilling operators, well control technicians, and BOP maintenance teams, it addresses demands for reliable wellbore sealing, shear operation durability, and compliance with API 16A standards, ensuring critical well control during high-pressure drilling and emergency shut-in scenarios.
Component Classification & Technical Details
1. Ram Blocks
Ram blocks are core load-bearing components for shear ram operation, enduring high-pressure impacts and shear forces. Poor material toughness or improper alignment causes premature wear, risking BOP failure. These blocks ensure precise shear action and sealing, critical for high-pressure well control.
No. | Product Model | Product Description | Material | Main Wear Causes | Damage Prevention Notes |
1 | RJ11172.15.03 | Lower Ram Block for 13 5/8”-5000psi shear-type Ram BOP, supports shear action and lower sealing interface. | AISI 4140 alloy steel (heat-treated), with hard chrome plating on contact surfaces for wear resistance. | 1. High-pressure impact during shear operation; 2. Misalignment with upper ram block causing uneven stress; 3. Abrasion from drilling fluid contaminants. | 1. Inspect alignment before installation per API 16A Clause 5.4; 2. Clean drilling fluid residues regularly to avoid abrasive wear; 3. Avoid overloading during emergency shear to prevent material fatigue. |
2 | RJ11172.15.01 | Upper Ram Block for 13 5/8”-5000psi shear-type Ram BOP, cooperates with lower block to complete shear and sealing. | AISI 4140 alloy steel (quenched and tempered), contact surfaces coated with tungsten carbide for enhanced shear performance. | 1. Shear force fatigue from frequent emergency operations; 2. Corrosion from high-salinity drilling fluid; 3. Surface damage from foreign debris in the BOP cavity. | 1. Conduct non-destructive testing (NDT) every 6 months per API 16A Clause 8.3; 2. Use corrosion-inhibiting drilling fluid compatible with alloy steel; 3. Clear BOP cavity of debris before ram installation. |
2. Ram Seals
Ram seals ensure leak-tight sealing between ram blocks and BOP body, preventing high-pressure fluid leakage. Thermal aging or chemical erosion degrades sealing performance, leading to well control risks. These seals maintain reliability in extreme downhole temperature and pressure conditions.
No. | Product Model | Product Description | Material | Main Wear Causes | Damage Prevention Notes |
1 | RJ11172.15.04 | Lower Ram Seals for 13 5/8”-5000psi shear-type Ram BOP, seals the lower ram-block interface to prevent fluid leakage. | FKM (Viton) rubber, reinforced with aramid fiber for tensile strength, resistant to high temperature (up to 204°C) and oil-based drilling fluid. | 1. Thermal aging from prolonged exposure to high downhole temperatures; 2. Chemical degradation from incompatible drilling fluid additives; 3. Extrusion damage due to improper groove installation. | 1. Store in a cool, dry environment (15-25°C) to avoid thermal aging; 2. Verify compatibility with drilling fluid additives per FKM material specifications; 3. Ensure seal groove dimensions match API 16A standards to prevent extrusion. |
2 | RJ11172.15.02 | Upper Ram Seals for 13 5/8”-5000psi shear-type Ram BOP, forms a tight seal with upper ram block and BOP inner wall. | HNBR rubber, with fluoropolymer coating, resistant to high pressure (5000psi) and sour gas (H₂S) per NACE MR0175. | 1. Chemical attack from H₂S in sour gas wells; 2. Abrasion from small solid particles in drilling fluid; 3. Compression set from long-term static sealing. | 1. Use only in sour gas wells compliant with NACE MR0175; 2. Install a filter to remove solid particles above 5μm from drilling fluid; 3. Relieve static pressure periodically to avoid permanent compression set. |
On-Site Fault Maintenance Case
A drilling team encountered lower ram seal leakage (model RJ11172.15.04) during 5000psi well control operations. Inspection found FKM seal degradation due to incompatible drilling fluid additives (non-FKM-compatible corrosion inhibitors) and thermal aging. After replacing with compliant seals and adjusting drilling fluid formula, the BOP passed API 16A pressure tests, restoring reliable sealing. This highlights the importance of material compatibility checks before installation.
FAQ
Question | Answer |
What standards are these shear ram components compliant with? | All components meet API 16A (Wellhead and Christmas Tree Equipment) and NACE MR0175 (for sour gas service), ensuring compatibility and reliability for 13 5/8”-5000psi shear-type Ram BOPs. |
How often should ram blocks and seals be inspected? | Ram blocks: NDT inspection every 6 months per API 16A Clause 8.3; Ram seals: Replace every 12 months or after 3 emergency shear operations, whichever comes first, to avoid performance degradation. |
Procurement Guidance
These shear ram components (Ram Blocks: RJ11172.15.03, RJ11172.15.01; Ram Seals: RJ11172.15.04, RJ11172.15.02) are 100% compatible with 13 5/8”-5000psi shear-type Ram BOPs, adhering to API 16A and NACE standards. They solve common wear, corrosion, and sealing failure issues, ensuring critical well control safety. For bulk procurement, customized technical support, and quality certification, contact us to secure reliable, compliant components for your drilling operations.
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