Hydraulic packer communicator

Abstract

The invention discloses a hydraulic packer communicator, and belongs to the technical field of oilfield exploitation. The hydraulic packer communicator comprises an upper joint, a protective sleeve, amiddle joint, a lower outer barrel, an outer pipe and a lower joint, wherein the upper joint, the protective sleeve, the middle joint, the lower outer barrel, the outer pipe and the lower joint are connected from up to down in a threaded mode in sequence, and are of a hollow structure; a reversing central pipe is arranged in the protective sleeve, and a first platform is arranged at the top of the reversing central pipe, and is in contact with the upper joint; a reversing spring is arranged on the exterior of the reversing central pipe, the top of the reversing spring is in contact with the first platform, and the bottom of the reversing spring is in contact with the top of the middle joint. According to the hydraulic packer communicator, under-pressure operation equipment is only required to be pushed down to the bottom of the packer connected with the hydraulic packer communicator to operate at one time, the production channel of the hydraulic packer communicator can be opened and closed many times, when pump inspection is carried out, the channel is closed by pressing operation of a casing pipe, dump inspection can be carried out, the operating process is simplified, the success rate of construction is improve, operating risk is reduced, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of oilfield exploitation, in particular to a hydraulic sealing connector. Background technique [0002] In the process of oil well production, fracturing technology is becoming more and more common. After fracturing, production capacity will increase, and high formation pressure will cause wellhead overflow. Snubbing equipment must be used to run the production string, which is complicated in construction. High cost, long construction period and other disadvantages. In the production process, as the production continues, there will often be a need for pump inspection operations. Each operation requires the use of pressure equipment to salvage the downhole production string, which prolongs the operation time. . Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present invention provides a hydraulic isolation connector, which can prevent blowout and protect the form...

AI Technical Summary

Problems solved by technology

[0002] In the process of oil well exploitation, fracturing technology is becoming more and more common. After fracturing, production capacity will increase, and high formation pressure will cause wellhead overflow. Snubbing equipment must be used to run the production string, which is complicated in construction. High cost, long construction period and other disadvantages. In the production process, as the production continues, there will often be a need for pump inspection operations. Each operation requires the use of pressure equipment to salvage the downhole production string, which prolongs the operation time.

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