螺杆马达复合钻进在川西南幸福1井的应用

Sliding and Rotary PDM Drilling of Well Xingfu-1 in Southwest Sichuan

本文主要论述了川西南片区沐川县实施一口温泉井钻探,在钻进至软硬砂泥岩互层的须家河组时,出现时效缓慢、孔内事故频发等问题,采用了螺杆马达复合钻进工艺,提高了钻进效率,取得了良好的经济效益。对今后在该地区大口径深孔钻探施工具有一定的参考意义。

This paper mainly discusses some problems,such as low net drilling rate,frequent downhole incidents,encountered when drilling a hot spring well in alternate soft and hard sandstone/mudstone of the Xujiahe formation in Muchuan County,Southwest Sichuan.A drilling process with sliding and rotary PDM drilling was adopted to tackle the problems,leading to high drilling efficiency and economic benefits.It may provide some experience for large diameter deep hole drilling in the region in the future.