南川东胜北区块页岩气井水平段侧钻技术分析

Analysis of Sidetracking Technology in Horizontal Section of Shale Gas Well in Nanchuan Dongshengbei Block

从注水泥塞、侧钻钻具选取、侧钻关键技术等方面进行了改进,现场应用结果表明优化措施减少了侧钻回填过程中出现的复杂情况,提高了侧钻成功率,达到了预期效果,可为该区块水平段回填侧钻技术提供借鉴。

In this paper,improvements have been made in the aspects of cement plug,sidetracking tool selection,sidetracking key technology,etc.The field application results show that the optimized measures reduce the complexity of the sidetracking backfill process and increase the sidetracking success rate.The expected effect has been achieved,which can provide a reference for the backfilling and sidetracking technology of the horizontal section of the block.