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Model NO.: CDCM
HS Code: 84314310
Model NO.: CDCM
HS Code: 84314310
1. Application
The choke manifold is an essential device used in oil and gas drilling operations to control well kicks and manage pressure effectively. It plays a crucial role in executing balanced pressure drilling techniques, which help prevent formation damage, improve drilling efficiency, and ensure safe blowout control. One end of the choke manifold connects to the side flange of the BOP (Blowout Preventer) spool. When the BOP is closed, the choke valve can regulate the casing pressure by adjusting its opening, allowing for controlled drilling under minimal pressure differential.
2. Configuration
The choke manifold consists of various components such as choke valves, gate valves, line pipes, fittings, pressure gauges, and other necessary parts. These elements work together to provide reliable pressure control during well operations.
3. Working Principles
When pressure inside the well increases, the choke valves on the manifold—such as manual chokes, hydraulic chokes, and positive chokes—can be opened or closed to release fluids and manage casing pressure. If the pressure becomes extremely high, the fluid can be directly blown out through the gate valve, ensuring safety and operational control.
4. Pressure Ratings
The choke manifold is available in different pressure ratings, including 14MPa, 21MPa, 35MPa, 70MPa, and 105MPa. Custom options are also available based on customer requirements.
5. Operating Instructions
(1) All components on the choke manifold must be compatible with the working pressure of the BOP stack being used.
(2) The choke manifold should be installed in a location that is easily accessible to the operator. A pressure test must be conducted before installation, and the test pressure should match the rated working pressure.
(3) The pipeline should be as straight and level as possible. If a bend is necessary, a 120-degree steel elbow should be used. The bore size of the pipe must be sufficient to allow proper flow.
(4) A pressure gauge must be installed to monitor system performance.
(5) The choke manifold is designed to function efficiently even in low-temperature conditions during winter.
Parts List:
| Item | Component | Qty | Material |
|------|------------------|-----|----------|
| 1 | Skid Base | 1 | |
| 2 | Hydraulic Choke | 1 | |
| 3 | Five-way Piece | 1 | 4130 |
| 4 | Gate Valve | 1 | |
| 5 | Pressure Gauge | 1 | |
| 6 | Needle Valve | 1 | |
| 7 | Instrument Flange| 1 | 4130 |
| 8 | Gate Valve | 10 | |
| 9 | Spacer Spool | 2 | |
| 10 | Studded Cross | 5 | 4130 |
| 11 | Blind Flange | 7 | 4130 |
| 12 | Spacer Spool | 1 | |
| 13 | Gate Valve | 2 | |
| 14 | Manual Choke | 2 | |
This detailed specification ensures that the choke manifold meets industry standards and provides reliable performance in a wide range of drilling environments.