深井XHP永久式封隔器处理新工艺

A new technique dealing with XHP permanent packers for deep wells

闫科举 伍兴东 陈彪

Yan Keju Wu Xingdong Chen Biao

中国石化 西北油田分公司 雅克拉采气厂, 新疆 库车 842017

Yakela Gas Production Plant, SINOPEC Northwest Company, Kuqa, Xinjiang 842017, China

XHP永久式封隔器能有效保证深层、高温、高压、高产气井的安全高效生产，但在后期的修完井过程中却很难处理。在总结前期处理失败经验的基础上，结合剖析该封隔器的结构原理，通过改变封隔器本体和密封筒的处理方式、优化套铣工具等方法，形成了一套能有效处理XHP永久式封隔器的新工艺，大幅提高了修井时效。先倒扣提出密封筒，后套铣、打捞封隔器本体的处理技术，为XHP永久式封隔器的成功处理提供了一种新方法。

XHP permanent packer can effectively ensure the safe and efficient production of a deep, high temperature, high pressure, and high yielding gas well, but it's difficult to deal in the later workover process. On the basis of failure experience in early days, and combined with the analysis of the structure principle of XHP permanent packer, this paper summarizes a new technique dealing with XHP permanent packer, which can lead to a substantial increase in workover aging by changing the processing approach of packer body and seal pot, and by optimizing ring-milling tools. We first make seal pot upside down, and then salvage packer body, which provides a new method for the successful treatment of XHP permanent packer.

https://doi.org/10.11781/sysydz2016S1109