Control valve and intermittent well intelligent control system adopting control valve

A technology for controlling valves and controllers, which is applied in the direction of valve operation/release devices, sliding valves, valve details, etc., and can solve problems such as ineffective protection of normal production of pipelines, affecting normal use of valves, high power requirements, etc., to achieve safe production The effect of reliable application, superior closing performance and rich technical theory
CN110671512APending Publication Date: 2020-01-10CHINA UNIV OF PETROLEUM (BEIJING) +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2020-01-10

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Abstract

The invention discloses a control valve. The control valve comprises a valve seat, wherein a channel allowing a medium to flow is arranged in the valve seat, a main valve body and an auxiliary valve body are sequentially arranged in the valve seat in the medium flow direction, the main valve body is used for completely opening or completely closing the channel, the auxiliary valve body is used foradjusting the opening degree of the channel, the auxiliary valve body is a sliding plate capable of reciprocating in the radial direction of the channel, the surface of the sliding plate is divided into an open hole region and a non-open hole region, and the reciprocating sliding plate can adjust the opening degree of the channel through the change of the position relationship between the open hole region and the non-open hole region and the channel. The control valve can ensure stable pipeline pressure to a great extent to achieve normal production.
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Description

technical field

[0001] The invention relates to the technical field of gas field development, in particular to a control valve and an intelligent control system for intermittent wells using the control valve. Background technique

[0002] With the large-scale development of gas fields, the production capacity of gas wells gradually decreases, and low-production gas wells cannot fully meet the production requirements due to low production. In view of this situation, on the basis of analyzing the existing production techniques and technologies of low-yield gas wells at home and abroad, intermittent shut-off wells are adopted to meet the production needs of low-yield gas wells. Intermittent well switching is a method to achieve the purpose of carrying liquid and resuming production by relying on the energy recovery of the gas well itself. It has become an indispensable measure for stabilizing and increasing production in the later stage of gas well production. When implementin...

Claims

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