CAMERON AAP3798102-00031-16203 Product Detailed Page

1. Basic Information

2. Key Parameter Data Sheet

3. Application Scenarios

1. Onshore/Offshore Oil and Gas Wellhead Systems
• Application Equipment: Christmas trees, choke & kill manifolds, wellhead safety valve groups.
• Core Role: As a pressure control component (e.g., choke valve core, check valve component), it regulates the pressure and flow of oil and gas produced from wellheads, prevents equipment damage caused by sudden pressure surges at wellheads, and ensures safe exploration.
2. Oil and Gas Gathering Station Processing Systems
• Application Scenarios: Pressure regulation modules for gathering pipelines, fluid control units for oil-gas separation equipment.
• Core Value: Adapts to pressure fluctuations from multi-well confluence during gathering and transportation, controls the stable transportation of oil and gas media in pipelines, and resists corrosion from sour media, reducing maintenance frequency.
3. High-Pressure Oil and Gas Testing Operations
• Application Scenarios: Temporary control loops for oil and gas well productivity testing and wellhead pressure testing.
• Core Role: Serves as a pressure-bearing and regulation component in testing systems, meeting short-term high-intensity testing conditions (e.g., wellhead shut-in pressure testing, flow calibration) and complying with API testing standards.
4. Unconventional Oil and Gas Development (Shale Gas/Coalbed Methane)
• Application Scenarios: Production control links after hydraulic fracturing of horizontal shale gas wells.
• Core Value: Withstands high-pressure, high-sand-content oil and gas media at wellheads after fracturing, prevents sand particle erosion and wear on components, and ensures long-term stable production.

4. Usage Instructions (Operating Specifications & Precautions)

4.1 Installation Requirements

• Pre-Installation Inspection: Before installation, confirm that the product model matches the wellhead equipment model (e.g., Christmas tree specifications, flange class), check for no scratches on component surfaces, no damage to sealing surfaces, and verify the factory qualification certificate and pressure test report.
• Installation Environment: Installation must be carried out in a dust-free and corrosion-free gas environment (temporary dust-proof sheds should be built for wellhead operations); for offshore platform installation, additional anti-salt spray pretreatment (e.g., applying anti-rust grease) is required.
• Connection Specifications: API standard bolts (e.g., ASTM A193 B7) must be used for flange connections, tightened in diagonal order in stages, and the torque value must comply with CAMERON’s technical manual requirements (e.g., approximately 80-100N·m for DN50 flange bolts); anti-seize compound (e.g., copper-based anti-seize) must be applied to threaded connections to prevent thread galling.

4.2 Operating Procedures

1. Pre-Operation Inspection: After installation, first perform nitrogen purging (to remove impurities in pipelines), then conduct a low-pressure airtightness test (pressure ≤1MPa), and hold pressure for 30 minutes with no leakage. Gradually increase the pressure to 50%, 80%, and 100% of the working pressure, holding pressure for 15 minutes each time to confirm no pressure drop.
2. Normal Operation: Monitor the wellhead pressure gauge in real time during operation. If the pressure exceeds 90% of the rated working pressure, adjust it through the bypass valve; overpressure operation is prohibited. The medium temperature fluctuation should be controlled within ±10℃ per hour to avoid material stress caused by sudden temperature changes.
3. Shutdown and Maintenance Operation: When shutting down the wellhead, first relieve pressure (slowly reduce pressure through the choke valve at a rate of ≤0.5MPa per minute), then close the upstream and downstream valves; use special tools (e.g., original CAMERON wrenches) for disassembly, and avoid violent disassembly that may damage the sealing surface.

4.3 Maintenance & Servicing

• Regular Inspection: Check the sealing surface (for leakage and scaling) every 3 months for onshore wellheads and every 2 months for offshore platforms; perform pressure calibration (using a standard pressure gauge for comparison) every 6 months, and disassemble to inspect the wear of seals every 12 months.
• Troubleshooting: If seal leakage is found, relieve pressure first and replace the seal (only original CAMERON seals must be used; mixing with other brands is prohibited); if pressure regulation fails, check for valve core jamming (possibly caused by sand blockage, which requires disassembly, cleaning, and reinstallation).
• Service Life Reminder: Under normal working conditions (complying with rated pressure and temperature ranges), the design life of main components is 5-8 years, and seals are recommended to be replaced every 2-3 years; for applications in high-sulfur conditions (H₂S concentration >100ppm), the maintenance cycle should be shortened to 70% of the original cycle.

4.4 Safety Warnings

• Installation and maintenance must be performed by personnel with API wellhead equipment operation qualifications; unqualified operation is prohibited.
• Do not strike or weld components during operation, and do not disassemble connecting bolts under pressure to prevent injury from high-pressure medium ejection.
• During storage, store in a dry and ventilated indoor area, away from fire sources and corrosive chemicals; cover the sealing surface with a protective cap to prevent foreign objects from entering.  
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