Portable packer auxiliary unsealing device and using method

Abstract

The invention discloses a portable packer auxiliary unsealing device and a using method. The device comprises a central tube, a thrust system is further included, wherein the thrust system comprises an inner cylinder barrel, an outer cylinder barrel, an inner force transmission sleeve, an upper connector, a sealing connector and a piston, the inner cylinder barrel is arranged outside the center pipe in a sleeving mode, an upper end of the outer cylinder barrel is in threaded connection with an upper joint, a lower end is in threaded connection with a sealing joint, a lower end of the inner cylinder barrel is in threaded connection with the sealing joint, an annular piston cavity is formed between the inner cylinder barrel and the outer cylinder barrel, a piston is installed in the piston cavity, the sealing joint is provided with a radial through pressing opening, an upper end of the piston is connected with an inner force transmission sleeve, and an upper end of the inner force transmission sleeve penetrates out of an upper end opening of an upper joint and then abuts against a locking component arranged on an outer wall of a center pipe. The device is advantaged in that a problemthat after a packer test tool and a packer performance detection test are adopted, a packer cannot be rapidly unpacked in the prior art is solved.

Description

Technical field [0001] The invention relates to an oil and gas well downhole tool performance detection device, in particular to a portable packer auxiliary unblocking device and a use method. Background technique [0002] In the process of oil and gas field development, for downhole operations such as fracturing, it is generally necessary to run process strings and support various downhole tools. Downhole tools generally need to withstand harsh downhole environments such as high pressure and high temperature, and their pressure resistance is very important. Once a problem occurs, it will inevitably cause downhole accidents and cause huge economic losses. Packer is a downhole tool widely used in downhole operations of oil and gas wells. It is used to seal the annulus of the oil casing to isolate the pay zone, control fluid, and protect the casing. The sealing performance of the packer directly affects the production and safety of oil and gas wells. Therefore, the packer can be ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a portable packer auxiliary unsealing device and a method of use, which solves the problem that the existing packer test tooling and packer performance detection test cannot satisfy the rapid unsealing of the packer

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