High Pressure Mud Manifold: Connecting Mud Pump To Kelly Hose And Swivel

Product Definition and Core Functions of High Pressure Manifold

The high-pressure drilling fluid pressurized by the drilling pump must rely on the high-pressure manifold for delivery. The high-pressure manifold is an integrated piping assembly composed of pressure-bearing pipe components such as high-pressure straight pipes, high-pressure elbows, tees, reducing couplings, flanges, unions (由壬), valves, and pulsation dampener short nipples.

Core functions:

1. High-Pressure Fluid Delivery: Stably delivers the high-pressure drilling fluid pressurized by the drilling pump to the kelly hose and swivel, and finally into the inner bore of the drill string down to the bottom hole, completing drilling fluid circulation and achieving drilling operations such as cuttings transport, bit cooling, and downhole power drive.

2. Pressure Buffering and Distribution: The manifold integrates a mounting base for the air chamber (pulsation dampener). Working with the air chamber, it buffers the periodic pressure pulsation caused by the reciprocating motion of the drilling pump, reducing pipeline impact and vibration, stabilizing pump pressure, and lowering fatigue damage to the drilling pump and downhole tools caused by pressure fluctuation.

3. Safety Pressure Relief Protection: The manifold provides mounting interfaces for safety valves, matched with high-pressure safety valves. When the system pressure exceeds the limit, the safety valve automatically opens to relieve pressure, protecting the drilling pump, manifold, and drill string from overpressure damage — serving as the safety barrier of the entire circulating system.

4. Operating Mode Switching and Maintenance: Equipped with high-pressure gate valves, the manifold enables the commissioning, isolation, and switching of single/multiple drilling pumps, facilitating equipment maintenance without interrupting the overall drilling circulation operation.

5. Pressure Parameter Monitoring: The manifold provides mounting seats for pressure sensors and pressure gauges, collecting real-time pressure data of the drilling fluid in the line. The signals are transmitted to the driller's console, allowing operators to monitor pump pressure changes in real time and judge downhole conditions.

Features

• Adopted high strength alloy steel/carbon steel appropriate to specific pressure rating, strict heat treatment technique, rigid quality control as per APl Spec 16C ;
• Equivalent to FMC WECO style Hammer Union with identical size to ensure easy replacement;
• APl Standard LP/NPT, Tubing threaded, and butt-weld end connection available;
• Complete line of standard service and sour gas wing unions in size from 1"-12" with working pressure up to 20000psi, Sour service conform to NACE specification;
• Quality and full style of hammer union seals can be provided in Buna-N, Viton, and Buna-N/Viton with a brass ring, Buna-N/Viton with a stainless steel ring, and Teflon. There are 80 Nitrile, 80 Viton, 90 Viton or upon request.
• The same figure number, size, and pressure rating are interchangeable, making it easy to match male and female subs that are frequently made-up and broken-out.