涪陵页岩气加密井钻井井控技术探讨

Discussion of Well-control Technique of Fuling Shale Gas Infiller Drilling

涪陵页岩气田加密井网的部署为井控工作提出了更高要求,井下压裂作业更是对同区域钻井施工井下安全、井控安全带来严重影响。分析压裂作业对地层及钻井施工的影响,针对相邻平台钻井、压裂同时施工,已压裂地层后续钻井等情况,分析井控风险,制定相应的施工方案和技术安全措施,以达到降低井控风险的目的,确保加密井的钻井施工安全。

Infilled well pattern deploy in Fuling Shale Gasfield has placed higher demands for well control. Downhole fracturing operation has even more serious impact on downhole drilling safety and well control safety in the same area. This paper analyzes the impact of fracturing operation on the stratum and drilling construction and also analyzes well control risk, followed by formulating corresponding construction scheme and technical safety measures to reduce well control risk and ensure infiller drilling construction safety.