昭通页岩气YS108区块韩家店至石牛栏组钻井提速技术实践

Drilling Speed Increase Technology Practice in Hanzidian to Shiniugang Formation of Zhaotong Shale YS108 Block

针对昭通页岩气YS108区块8 1/2"井眼韩家店至石牛栏组普遍机械钻速低,钻井周期长问题,川庆50713队为贯彻落实"将工具、设备用到极致"的提速思想,严格执行"高钻压,高转速,大排量"钻井参数要求,在YS108H21-4井8 1/2"井眼韩家店至石牛栏组采用低密度钻井液欠平衡钻进的方式进行提速实验,取得初步成果。

In view of the low ROP and long drilling period in Hanzidian-Shilardae group of 8 1/2 ＂borehole in Zhaotong shale gas YS 108 block, Chuanqing 50713 team implemented the＂ Use the extreme ＂speeding thought, strictly implement the drilling parameters of＂ high-pressure drilling, high speed, large displacement ＂drilling requirements, YS108H21-4 well 8 1/2＂ well Hanjiandian to Shek Ngau set of low-density drilling Liquid underbalanced drilling approach to speed experiments, and achieved initial results.