盐穴储气库井裸眼段地层封堵技术探讨

Discussion on Formation Plugging Technology in Open Hole Section of Salt Cavern Gas Storage Well

随着我国大力发展地下盐穴储气库,建设过程中出现前期钻井施工完成,造腔前气密封测试不达标的新难题出现。本文通过JT盐矿区案例井,分析工程面临难点,提出了封堵技术方案,就重点建立人工作业平台做出详述。针对建立人工作业平台和裸眼漏失段封堵作业制定了可操作性的作业措施,并对关键参数给出了详细的确定方法,为解决此类难题提供了参考依据。

With the vigorous development of underground salt cavern gas storage wells in China,the problem of air seal failure of open hole after the completion of drilling construction has emerged.This paper analyzes the difficulties faced by the project through a case study of the JT salt mine area,proposes a plugging technology scheme,and elaborates on key establishment of a manual operation platform.Operational measures have been formulated for the establishment of manual operation platforms and the plugging of open hole leakage sections and detailed methods for determining key parameters have been provided,which provides references for solving such problems.