Gas well annulus condition diagnosis method, apparatus and storage medium

WO2025020324A1PCT designated stage expired Publication Date: 2025-01-30PETROCHINA CO LTD
View PDF 14 Cites 4 Cited by

Patent Information

Application Number
PCT/CN2023/127395
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-07-25
Filing Date
2023-10-27
Publication Date
2025-01-30

Smart Images

  • Figure CN2023127395_30012025_PF_FP_ABST
    Figure CN2023127395_30012025_PF_FP_ABST
Patent Text Reader

Abstract

A gas well annulus condition diagnosis method, comprising: acquiring an annulus pressure of a gas well to be tested, and on the basis of the annulus pressure, determining an annulus pressure curve; inputting the annulus pressure curve into an annulus pressure curve prediction model, so as to determine whether said gas well has had a leak; and if said gas well has had a leak, acquiring basic parameters of said gas well, and inputting the basic parameters into an annulus leak prediction model, so as to determine leak point parameters of said gas well. Further provided are an apparatus based on the method, an electronic device and a storage medium. The method can determine leak points for gas well annulus condition diagnosis.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Oil and gas well integrity monitoring and management system

    CN108764729A

  • Oil and gas well drilling overflow early warning method based on long-term and short-term memory network

    CN112016766A

  • Method and device for determining leakage point position of oil pipe of high-pressure gas well

    CN115288669A

  • Tubular column leak source detection device

    CN206016802U

  • Method of assessing technical condition of gas wells at deposits and underground gas storages

    RU2730957C1

Cited By

  • Gas well tubing string connector leakage depth diagnosis method

    CN120542322A

  • Production pipe column leakage positioning method

    CN120777000A

  • Simulation experiment device and method for inducing gas well annulus pressure through micro-annulus leakage

    CN121066584A

  • Real-time analysis and evaluation method for carbon dioxide sequestration amount

    CN121119464A