Choke manifold is an essential component used in oil and gas well control systems. It plays a crucial role in managing well kicks and maintaining pressure control during drilling operations. When the blowout preventer (BOP) is closed, the choke valve can be adjusted to regulate casing pressure, ensuring that the bottom hole pressure remains slightly higher than the formation pressure. This helps prevent further influx of formation fluids into the wellbore. Additionally, the choke manifold allows for a soft shut-in when the well is closed, and it can also be used to release pressure safely, protecting the well from over-pressurization.
The choke manifold typically consists of a choke valve, gate valve, piping, fittings, and pressure gauges. The choke valve comes in different types, including manually adjustable, hydraulic, and positive-acting models. These valves are used to control the flow of fluids and manage pressure effectively. The gate valve is often used for direct blowout operations when necessary.
Our company offers choke manifolds with five standard pressure ratings: 14MPa, 21MPa, 35MPa, 70MPa, and 105MPa. Custom designs are also available to meet specific customer requirements. Below is a detailed specification table for our choke and kill manifolds:
| Name | Choke Manifold | Kill Manifold |
|-------------------|------------------------|------------------------|
| Model | JG/S2-35 | JG/SY-35 |
| | JG/SY-35 | JG/SY2-70 |
| | JG/SY2-70 | JG/S2Y2-105 |
| | | YG-35 |
| | | Y-70 |
| | | YG-105 |
| Main diameter and sideward diameter | 3 1/8 × 2 1/16 (80×52), 4 1/6 × 2 9/16 (103×65), 4 1/6 × 3 1/16 (103×78) | - |
| Working Pressure (psi / MPa) | 3000 (21) / 5000 (35) | 3000 (21) / 10000 (70) | 5000 (35) | 10000 (70) | 15000 (105) |
| Working Temperature (°C / °F) | LU: -46°C ~ +121°C (-50°F ~ 250°F) | - |
| Working Mediums | Drilling fluid, mud, and petroleum (with hydrogen sulfide) | - |
| Control Type | Two-winged manual choke valve | Two-winged main relief valve |
This comprehensive system ensures safe and efficient pressure management in various well conditions. Whether you need a standard model or a custom design, we provide reliable solutions tailored to your operational needs.
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JIANGSU FUERMU WELDING CORPORATION , https://www.fuermuwelding.com