Three-channel oil production switch
A three-channel, switch technology, applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., can solve the problems of low work efficiency, cumbersome operation procedures of layered oil recovery, etc., and achieve the effect of solving cumbersome operation procedures
Active Publication Date: 2013-05-15
ZHONGQING ENERGY ENG TECH CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a three-channel oil production switch to solve the problems of cumbersome operation procedures and low work efficiency in the existing layered oil production
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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] The invention provides a three-channel oil recovery switch, see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , comprising a spherical cover 27, a steel ball 26 is arranged in the spherical cover 27, an upper central tube 25 is connected to one side of the steel ball 26, an oil extraction port e23 is arranged on the outer wall of the upper central tube 25, and the other end of the upper central tube 25 is connected to There is a track column 8, and a track is arranged on the track column 8 along its outer wall. Two sliding pins 10 are arranged oppositely in the track, and each sliding pin 10 is covered with a sliding ring sleeve 21. The track column The other end of 8 is connected to the bottom plug 16 through the lower central pipe 19, and the end of the lower central pipe 19 close to the bottom plug 16 is provided wit...
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The invention discloses a three-channel oil production switch which comprises an upper central tube. The other end of the upper central tube is connected with a lower central tube through a track pipe column. The other end of the track pipe column is connected with a spring through a thrust bearing. The other end of the spring is connected with a hollow lower connector through a spring seat pipe column. An outer sliding sleeve is arranged outside of the track pipe column in a sleeved mode. One end of the outer sliding sleeve is connected with a lower outer sleeve through a middle outer sleeve, and the other end of the outer sliding sleeve is connected with a central tube. An upper outer sleeve is arranged on the outer wall of the central tube. The upper outer sleeve is connected with the outer sliding sleeve through an annular rubber sleeve group. A hollow upper connector is arranged at the other end of the upper outer sleeve in a sleeved mode. Due to the three-channel oil production switch, drilling pipe column in does not need to be extracted out, oil production oil layers can be alternately changed directly through a suppressing pipe column, and the problems that the existing layering oil production operation process is complex and working efficiency is low are solved.
Description
technical field [0001] The invention belongs to the technical field of oil well production, and relates to a three-channel oil production switch. Background technique [0002] In the existing oil production process, it is necessary to follow the distribution of each oil layer to avoid mixed production. In order to achieve the ideal production effect, layered production is often used. When it is necessary to change the oil layer to be exploited, the production string needs to be lifted Only by changing the operation tool can the oil layer to be exploited be changed, the operation procedure is cumbersome and the work efficiency is low. Contents of the invention [0003] The object of the present invention is to provide a three-channel oil production switch to solve the problems of complicated operating procedures and low work efficiency in existing layered oil production. [0004] The technical solution adopted in the present invention is that the three-channel oil producti...
Claims
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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