Fast-assembly type oil well water plugging packer with alignment mechanism

Abstract

The invention relates to the field of packers, in particular to a fast-assembly type oil well water plugging packer with an alignment mechanism. The technical problems that in the using process of part of existing oil well packers, setting pins need to be cut off for packing, reinstallation is needed for next use, and using is complex are solved. When part of existing oil well packers are used for packing in an inward pushing mode, butt joint is not convenient, and a push rod needs to be replaced for multiple times, and the stability of the existing part of oil well packer slips after being fixed is poorer. In order to solve the technical problem, the fast-assembly type oil well water plugging packer with the alignment mechanism comprises a lower fixing sleeve, and a lower pipe sleeve is fixedly connected to the interior of the lower fixing sleeve. The device is composed of the butt joint mechanism and the locking mechanism, when the clamping sleeve moves downwards, the two clamping blocks are clamped into the clamping grooves formed in the two sides of the clamping sleeve correspondingly, the clamping sleeve is limited, the situation that the pin needs to be cut off when the setting pin is used is avoided, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of packers, in particular to a quick-installed oil well water shutoff packer with an alignment mechanism. Background technique [0002] In the late stage of oilfield development, the water cut of oil wells is getting higher and higher, and the phenomenon of casing leakage is becoming more and more serious. The use of packers to seal high aquifers and casing leakage sections is an important means to reduce the water cut of oil wells and increase production; [0003] The existing patent (notification number: CN111395990A) discloses a packer, including: a central pipe; the central pipe is provided with an upper joint, a backwash mechanism, a rubber cartridge mechanism, an anchoring mechanism, and a righting mechanism from top to bottom. , and the lower connector. In the process of implementing this solution, the inventor found that the following problems existed in the prior art that had not been resolved: 1. ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a quick-installed oil well water shutoff packer with an alignment mechanism, which solves the need to cut off the setting pin for sealing during the use of some existing oil well packers. It needs to be reinstalled next time, which is complicated to use; some existing oil well packers are inconvenient to connect when using the push-in method for isolation, and the push rod needs to be replaced many times; and some existing oil well packer slips are fixed less stable

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