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Switch mode drilling tool bypass valve

A bypass valve and switch-type technology, applied in the field of drilling, can solve the problems of limited use and switching times, damage to the bypass valve, and inability to open and close the bypass valve in time, so as to save drilling costs and reduce costs. The number of drilling down and the effect of reducing the labor intensity of workers

Inactive Publication Date: 2016-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantages of the above existing technologies are: the opening of the bypass valve is realized by throwing the ball and holding the pressure, and the bypass valve cannot be opened and closed in time when a complicated situation is encountered.
In addition, due to the mechanical method, the bypass valve will be damaged after use, such as the pin being sheared, so the number of times it can be used and switched is limited

Method used

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  • Switch mode drilling tool bypass valve
  • Switch mode drilling tool bypass valve
  • Switch mode drilling tool bypass valve

Examples

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like figure 1 Shown is a specific embodiment of the switch-type drilling tool bypass valve of the present invention. In this embodiment, the bypass valve mainly includes a valve body 1, a power unit, a control unit and an execution unit. The power unit, the control unit and the execution unit are all arranged in the valve body 1, the power unit is used to drive the execution unit, and the control unit 8 is used to receive ground signals and control the action of the execution unit. The execution unit moves in the valve body 1 to open or close the bypass valve.

[0030] In one embodiment, the valve body 1 has a cylindrical structure. Among them, the valve body 1 is provided with a bypass hole 15 . The upper end and the lower end of the valve body 1 are respectively provided with threaded structures connected with the drilling tool.

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Abstract

The invention discloses a switch mode drilling tool bypass valve comprising the following elements: a valve body; a power unit connected with the valve body; a control unit electrically connected with a ground controller, the control unit is electrically connected with the power unit, and used for receiving a ground control signal so as to control the power unit motions; an execution unit arranged in the valve body and connected with the power unit so as to open / close the bypass valve. The switch mode drilling tool bypass valve can be timely opened / closed, and can be repeatedly opened.

Description

technical field [0001] The invention relates to the technical field of drilling, in particular to an on-off drilling tool bypass valve. Background technique [0002] In the process of drilling oil, natural gas, shale gas and coalbed methane, when complex situations are encountered downhole, such as plugging of the water hole of the drill bit, it is necessary to stop leakage, kill the well, and improve the efficiency of rock-carrying. Rapid cycling is required, and when a new cycle is established, frequent trips are often required, resulting in extended drilling cycles and increased drilling risks and costs. [0003] In order to deal with the complex situation in the well in a timely and effective manner, a variety of switchable drilling tool bypass valves have been developed at home and abroad. [0004] Patent 200720090026.5 discloses a downhole controllable drilling tool bypass valve. Its main features are: when the ball is thrown for the first time, pressure is held insid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/14E21B21/10
Inventor 刘鹏马东军郑俊华陶兴华孙明光王磊陈天成张海平张仁龙白彬珍陈军海陈小锋
Owner CHINA PETROLEUM & CHEM CORP
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