A connection method and structure of a seal inspection pup joint and a test and adjustment pup joint

Abstract

The invention discloses a connection method and structure of a seal inspection pup joint and a test and adjustment pup joint. In the present invention, the lead wires of the electrical components in the seal test pup are assembled into a wire harness through the casing and connected to the plug at the connection end of the seal test pup; The problem of inconvenient maintenance due to the wiring of the seal inspection nipple; the semicircular boss on the outer tube positioned at the front end of the seal inspection nipple cooperates with the semicircular groove at the front end of the socket bracket in the test and adjustment nipple to realize the sealing inspection and adjustment of the nipple. The guide connection of the joint and the accurate positioning of the electrical connection can avoid the damage of the plug and the socket by the butt torque; The radial rotation between the plug and the seal test nipple, as well as between the socket and the test adjustment nipple, prevents the wire harness connected to the plug and socket from being twisted or twisted, so as to improve the reliability of the electrical connection.

Description

technical field [0001] The invention relates to a connection method and structure of a seal inspection pup joint and a measurement and adjustment pup joint, belonging to the technical field of connection of two downhole instruments. Background technique [0002] At present, direct-reading electric measurement and adjustment technology and direct-reading electric seal inspection technology are widely used in oilfield water injection well layered water injection work. The two technologies are independent technologies. During the test, the operator needs to use different instruments to operate multiple times. The work efficiency is low and the economic cost is high. [0003] In order to improve work efficiency and reduce economic costs. It is necessary to connect the seal inspection pup joint with the measurement and adjustment pup joint, and put them downhole at the same time to realize the seal inspection operation and the measurement and adjustment operation at the same tim...

AI Technical Summary

Problems solved by technology

[0007]A connection method of the seal inspection pup joint and the test adjustment pup joint of the present invention is that the lead wires of the electrical components in the seal inspection pup joint are collected through the bushing The wiring harness is connected with the plug at the connection end of the seal inspection pup; the plug at the connection end of the seal inspection pup is electrically connected with the socket at the connection end of the test and adjustment pup, so as to improve the problem that the seal inspection pup is inconvenient to maintain because of the excessive wiring; through the seal inspection short The semicircular boss on the front end of the positioning outer tube cooperates with the semicircular groove at the front end of the socket bracket in the test and adjustment nipple to realize the guide connection and electrical connection of the sealing inspection nipple and the measurement and adjustment nipple. Accurate positioning problems to avoid plug and The socket is damaged by the docking torque; the connection between the plug and the seal test pup, and the socket and the test and adjustment pup adopts a non-circular hole column matching connection method to limit the distance between the plug and the seal test pup, as well as between the socket and the test and adjustment pup. The radial rotation between them prevents the wire bundles connected with the plug and socket from being entangled or twisted, so as to improve the reliability of the electrical connection

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