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Two-channel oil extraction switch

A dual-channel, on-off technology, applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of low work efficiency and cumbersome stratified oil production operation procedures, and achieve the effect of solving cumbersome operation procedures.

Active Publication Date: 2013-05-08
ZHONGQING ENERGY ENG TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dual-channel oil production switch to solve the problems of cumbersome operation procedures and low work efficiency in the existing layered oil production

Method used

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  • Two-channel oil extraction switch
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  • Two-channel oil extraction switch

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] The invention provides a double-channel oil recovery switch, see figure 1 , including a hollow track pipe string 4, the outer wall of the track pipe string 4 is provided with an oil production port I16 and communicates with the inner cavity of the track pipe string 4, and one end of the track pipe string 4 is provided with a track along its outer wall, and the relative setting in the track There are two sliding pins 7, each sliding pin 7 is covered with a sliding ring 8, the side of the track column 4 away from the track is provided with a steel ball 3, and the other side of the steel ball 3 is covered with a ball cover 2 , the end of the track column 4 close to the track is connected with the central tube 14 and the thrust bearing 9, the thrust bearing 9 is located on the outer wall of the central tube 14, and the end of the central t...

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Abstract

The invention discloses a two-channel oil extraction switch which comprises a hollow tubular column of a track, wherein one end of the tubular column is provided with the track along the periphery of the outer wall of the tubular column, two sliding pins are arranged in the track in an opposite mode, and a sliding annular loop is sleeved on each sliding pin. One end, close to the track, of the tubular column of the track is connected with a central pipe and a thrust bearing, and an upper sleeve is sleeved on the outer wall of the tubular column of the track. One end, close to a dome, of the upper sleeve is provided with a hollow upper joint, the other end of the upper sleeve is connected with a lower sleeve, and the other end of the lower sleeve is provided with a hollow lower joint. A gap is arranged between the inner wall, away from the III point of an oil extraction mouth, of the lower joint and the outer wall of the central pipe. The thrust bearing is connected with the section of the tube wall of the lower joint through a reset spring. By means of the two-channel oil extraction switch, oil layers of the oil extraction can be alternately switched directly by pressing the tubular column without extracting the extraction tubular column, and the problems of fussy operation procedures of the oil extraction by layers and low working efficiency are solved.

Description

technical field [0001] The invention belongs to the technical field of oil well production, and relates to a double-channel oil production switch. Background technique [0002] Petroleum is a general term for a variety of oils, such as gasoline, diesel, kerosene, etc. When exploited, they must be exploited in layers according to their densities in order to obtain purer oils. In the process of oil exploitation, when it is necessary to change the oil layer to be exploited, it is necessary to extract the production string and replace the operating tools to change the oil layer to be exploited. The operation procedure is cumbersome and the work efficiency is low. Contents of the invention [0003] The purpose of the present invention is to provide a dual-channel oil production switch to solve the problems of cumbersome operation procedures and low work efficiency in existing layered oil production. [0004] The technical solution adopted in the present invention is that the d...

Claims

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Application Information

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IPC IPC(8): E21B43/14
Inventor 何玉江孙宝有李在发
Owner ZHONGQING ENERGY ENG TECH CO LTD
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