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Cock type ball casting device for oil drilling

A ball-throwing device, oil drilling technology, applied in wellbore/well valve device, earth-moving drilling, wellbore/well components, etc., can solve the problems of time-consuming and laborious, high-altitude operation, sticking, etc., to achieve convenient operation and flexible use , The effect of saving drilling time

Pending Publication Date: 2017-05-10
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pitching method is not only time-consuming and labor-intensive, but also has the risk of high-altitude operation, wellhead risk, and pipe sticking risk

Method used

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  • Cock type ball casting device for oil drilling
  • Cock type ball casting device for oil drilling
  • Cock type ball casting device for oil drilling

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] refer to figure 1 , a cock type oil drilling device comprising a body 1, a retaining spring 2, a four-open ring 3, an upper valve seat seal ring 4, an upper valve seat 5, a lower four-open ring 6, a cock switch 7, and a cock switch seal ring 8 , Lower valve seat 9, wave spring 10, upper block 11, steel ball 12, cage ball valve 13 and lower valve seat sealing ring 14.

[0017] refer to figure 1 , The lower valve seat 9 is installed in the lower part of the inner cavity of the body 1, and the wave spring 10 is located in the lower part of the lower valve seat 9 to play a shock absorbing role. The caged ball valve 13 is located at the upper end of the lower valve seat 9, and the side is connected with the cock switch 7 through a square hole. The lower four open rings 6 are located on the cage ball valve 13 and are stuck inside the body 1...

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PUM

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Abstract

The invention relates to a cock type ball casting device for oil drilling, and belongs to the field of drilling operation auxiliary tools for oil, natural gas exploration and development. The device comprises a main body, an upper valve seat, a cock switch, a lower valve seat and a cage ball valve. Connection threads are formed at two ends of the main body. The cage ball valve is fixed between the upper valve seat and the lower valve seat to form a rotational coordinated body, and the rotational coordinated body is integrally mounted in the main body cavity. The cock switch is cylindrical, and forms a sealing rotational coordinated body with the main body. The cage ball valve and the cock switch form a synchronous rotational coordinated body in the horizontal axial direction. Ball body through holes are formed in the cage ball valve in the longitudinal axial direction, and flow channel through holes are formed in the cage ball valve in the horizontal axial direction. When it is needed to implement the ball casting operation, the cock switch needs to be rotated by 90 degrees to be in the open state, a steel ball falls into the drill though the cage ball valve hollow section to complete the ball casting operation. The cock type ball casting device for oil drilling has the advantages of being flexible to use, good in safety and reliability, simple to operate, capable of saving time and labor, avoiding high altitude operation risks, pithead risks and drill jamming risks.

Description

technical field [0001] The invention relates to the auxiliary field of oil and natural gas exploration and development drilling tools, in particular to a cock type ball throwing device for oil drilling. Background technique [0002] In the process of oil and natural gas exploration and development, many drilling operations need to throw steel balls in the drilling tool to complete core cutting and window opening in drilling and coring operations, pressure suppression in lower liner operations, etc. In the actual operation process, the ball is generally thrown from the drill tool by unloading the drill tool. If the drill tool cannot move up and down, the ball is thrown through the standpipe or the plug at the gooseneck at the upper end of the hose. This pitching method is not only time-consuming and labor-intensive, but also has the risks of high-altitude operations, wellhead risks, and pipe sticking risks. Contents of the invention [0003] The object of the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/06
Inventor 裴学良吴仲华王朝平司英晖梁海明田宗正于文涛赵宗锋
Owner 中石化石油工程技术服务有限公司
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