Drilling throttle manifold embedded automatic control device

Abstract

The invention provides a drilling throttle manifold embedded automatic control device. The drilling throttle manifold embedded automatic control device includes an embedded control panel; the embeddedcontrol panel includes a CPU and a switch value SSR output circuit; the CPU is connected with the switch value SSR output circuit; the switch value SSR output circuit is connected with a hydraulic change-over valve P1, a hydraulic change-over valve P2, a hydraulic change-over valve P01 and a hydraulic change-over valve P02 separately; the hydraulic change-over valve P1 is used for controlling a main path; the hydraulic change-over valve P2 is used for controlling an auxiliary path; the hydraulic change-over valve P01 and the hydraulic change-over valve P02 are used for controlling a relief path. The drilling throttle manifold embedded automatic control device has the advantages that by adopting the embedded control panel, a hardware platform and an input / output interface which are neededby a throttle manifold control system are provided; the drilling throttle manifold embedded automatic control device is placed inside a small explosion-proof box, so that requirements for multifunctional and miniaturized development of skid-type throttle manifolds are met.

Description

technical field [0001] The invention belongs to the field of petroleum drilling engineering, and in particular relates to an embedded automatic control device for a drilling throttling manifold. Background technique [0002] The choke manifold is an important part of oil drilling and production equipment. It is an important equipment for controlling well kick and implementing oil and gas controlled pressure drilling, and plays an important role in realizing safe drilling operations. During normal drilling operations, with the help of the choke manifold, under the condition that the BOP is closed, the casing pressure is controlled to reach a certain level by opening and closing the choke valve on the choke manifold or adjusting the opening of the choke valve. A process setting value is used to maintain the bottom hole pressure slightly greater than the formation pressure and prevent the formation fluid from flowing into the well. When implementing well shut-in, the choke man...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the PLC control equipment used in the prior art has a large volume, cannot meet the needs of skid-mounted miniaturization, requires secondary development, and has high cost and low safety. The present invention provides an embedded automatic control system for drilling choke manifolds. devices, including embedded control boards;

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