Spring self-switching type Y-shaped joint

Abstract

The invention relates to a spring self-switched Y-shaped joint which is characterized in that: the joint comprises a joint body, wherein, one side of the joint body is provided with a production channel and a test channel in a communication way and the other side thereof is provided with an electric pump oil-pumping channel; the upper part of the electric pump oil-pumping channel is provided withan oblique oil-pumping channel communicated with the production channel, a slideway hole is transversally arranged between the test channel and the electric pump oil-pumping channel, one end of the slideway hole, which is close to the electric pump oil-pumping channel, is fixed to be connected with an end cover and a pressure-transmitting hole is arranged at the center of the end cover; a sealingsliding block, the head of which faces the test channel is arranged in the slideway hole; an extension spring which is corresponding to the head shape of the cylindrical sealing sliding block is arranged between the end cover and the sealing sliding block; a sealing slot is arranged on the pipe wall of the test channel, and screw threads which connect pipelines are respectively arranged at the upper end part of the production channel, the test channel and the lower end part of the electric pump oil-pumping channel. The joint has simple structure and convenient operation, and can be widely used in an oil drilling system.

Description

technical field [0001] The invention relates to a tool for oil production wells, in particular to a spring self-switching Y-shaped joint for oil production wells. Background technique [0002] In the process of oil extraction and production, electric pump wells are widely used to exploit oil, but due to the complex well conditions, general electric pump wells cannot meet the testing and logging conditions. Therefore, the Y-joint test string of the electric pump well came into being. It solves some problems in the dynamic monitoring technology of oilfield production, and can measure various data such as pressure, liquid production profile, water absorption profile and layered production data. The dynamic and static parameters of the oil well not only meet the production requirements, but also provide a basis for timely understanding of various dynamic data of the production well, scientific management of oilfield dynamics and adjustment of production technical parameters. ...

AI Technical Summary

Problems solved by technology

[0004] However, under the current oilfield production conditions, frequent operations such as running the steel wire in and out of the plug 21 and starting and stopping the electric pump 23 take up a large amount of operating time and greatly reduce the normal production time of the oil well.

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