Packer

Abstract

The present application provides a packer, which includes: a central tube; an opening is arranged on it; a piston barrel, which is movably sleeved outside the central tube; several rubber tubes, which are sleeved on the piston on the cylinder; a locking sleeve, which is sleeved outside the central tube; and the locking sleeve extends into the piston cylinder and forms a liquid inlet chamber communicated with the opening between the piston cylinder and the piston cylinder, so The piston barrel can move relative to the central tube under the action of the liquid in the liquid inlet chamber, and then compress the rubber barrel; the locking part is arranged on the piston barrel; the stopper is arranged on the On the locking sleeve, the stopper is used to limit the movement of the locking member against the rubber tube after the piston barrel compresses the rubber tube; the embodiment of the present application provides a packer whose operation Simple, reliable setting, simple structure and low processing cost.

Description

technical field [0001] The present application relates to the technical field of well cementing and completion operations in oil and gas fields, in particular to a packer. Background technique [0002] In oil and gas field cementing and completion operations, the performance of the packer directly affects the operation effect. [0003] Existing packer systems mostly use hydraulically compressed rubber cartridges to expand and set the rubber cartridges. However, the sealing performance of the rubber cartridge of the existing packer system is unreliable, and the problem of unreliable setting and hanging is prone to occur after setting. In addition, existing packer systems can be classified into non-retrievable systems and retrievable systems. However, the existing retrievable systems often have the problem of unsealing difficulties leading to recovery failures, which brings a lot of inconvenience to on-site operations and even affects the smooth progress of well completion o...

AI Technical Summary

Problems solved by technology

However, the existing retrievable systems often have the problem of unblocking and failure of recovery, which brings a lot of inconvenience to on-site operations and even affects the smooth progress of well completion operations.

Therefore, the existing packer system has the following deficiencies in the actual use process: complex operation, poor setting reliability, complex structure, cumbersome parts, high processing cost, and inconvenient recycling and reuse, etc.

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