井下卡钻分析及处理

Analysis and disposal of downhole stuck pipe

张林强

Zhang Linqiang

CACT Team of China Oilfield Services Limited, Zhanjiang 524057

井下卡钻事故在钻井过程中属常见事故。在钻井过程中不仅要确保钻井效率,还要确保钻井过程中井下安全。为了更好的预防井下卡钻事故,提高整体作业的质量以及达到满意的施工效果,通过分析地质特点、储层特点和经济技术特点及泥浆性能等,对在钻井过程中遇到的卡钻事故,针对性地提出了及时有效的处理方案和预防方法。

Drill pipesticking happens constantly in drilling, so we should not only insure efficiency in drilling process, but also insure its safety. In order to prevent from pipesticking, enhance the quality of the whole engineering and gain a perfect construction effect, this paper analyzes the geology, reservoir, tech-nique characteristics and the mud property etc, and presents disposal and preventive schemes.