1, usage
Choke manifold is a necessary equipment to control kick and pressure in oil and gas well. When the BOP is closed, the casing pressure is controlled by the opening and closing of the throttle valve to maintain the bottomhole pressure slightly higher than the formation pressure and prevent further flow of formation fluid into the well. In addition, a choke manifold can be used to relieve pressure to achieve a soft shut-in. When the pressure in the well rises to a certain limit, it is used to protect the wellhead.
2. Composition and structure
Throttle manifold consists of throttle valve, gate valve, pipeline, pipe fittings, pressure gauge and so on.
3. Working principle
The casing pressure can be controlled by opening and closing the throttle valve (manual adjustable, hydraulic and stationary) on the throttle manifold to release the well fluid. High sleeve pressure can be directly through the gate valve spray.
4, throttle manifold specifications
The pressure level o