Electrically controlled y-connection tool for oil production wells

By designing an electrically controlled Y-joint tool and using an electrically controlled method to achieve multi-channel switching, the problem of lowering electric pump units into highly inclined wells was solved, simplifying the construction process, reducing costs, and improving operational efficiency.

CN122407091APending Publication Date: 2026-07-17CNOOC ENERGY TECHNOLOGY & SERVICES LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CNOOC ENERGY TECHNOLOGY & SERVICES LTD
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing conventional Y-joint tools are insufficient to meet the requirements for running electric pump units into highly deviated wells, and multi-pipeline operations are difficult, making it impossible to effectively switch between production and acidizing channels.

Method used

Design an electrically controlled Y-joint tool that uses electrical control to achieve multi-channel switching. The movement of the moving water nozzle is controlled by a signal cable to switch between the electric pump lifting channel and the oil layer acidizing channel. The tool has a simple structure, reliable operation, and is suitable for Y-type production string operations in highly deviated wells.

Benefits of technology

This solves the problem of limited insertion of conventional Y-joints, simplifies the construction process, reduces construction costs, and shortens production operation time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122407091A_ABST
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Abstract

The application discloses an electric control Y joint tool for an oil production well, which comprises a short upper joint, an outer cylinder, a screw rod outer cylinder and a Y joint body which are sequentially connected; a motor module, a main control circuit module and an insulation protection circuit module are arranged in the outer cylinder; the motor module is connected with a screw rod arranged in the screw rod outer cylinder through a transmission key cylinder; the lower end of the screw rod is connected with a screw rod outer sleeve through a screw thread; the screw rod outer sleeve is connected with a movable water nozzle; two cavities are arranged in the Y joint body and are communicated through an oil layer acidification channel; the movable water nozzle and an electric pump lifting channel are arranged in one of the cavities of the Y joint body; and the switching of the oil layer acidification channel and the electric pump lifting channel is realized through the movement of the movable water nozzle. The electric control Y joint tool realizes the switching of multiple channels through the electric control mode, has the advantages of reasonable structure design, safe and reliable use, convenient operation and convenient construction and the like, and has great practical value.
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