探矿工程-岩土钻掘工程Issue(10)：17-21,5.
焦页非常规页岩气井优快钻井技术
Optimized and Fast Drilling for Construction of Jiaoye Unconventional Shale Gas Well
王国庆 1王建波 1陈广 1郭少帅 1张磊 1许义亮1
作者信息
- 1. 中石化中原石油工程有限公司钻井二公司，河南濮阳457000
- 折叠
摘要
Abstract
There are the characteristics of dense lithology, strong abrasive and poor drillability in upper formaton in Jiaoshi-ba area of Chongqing, active shallow gas with sulfur in Changxin formation and long third spud horizontal section, high fric-tion and being easy to collapse in clay shale.The prominent problems were low ROP, difficult well control and long drilling cycle.According to the above difficulties in gas reservoir drilling, the analysis was made mainly on the drilling technology, wellbore stability maintenance and drilling fluid;optimization of drilling tool structure, optimizing bit selection, inhibition of wellbore instability were carried out in order to speed up the drilling speed in Jiaoshiba area.“Screw drill +high effi-cient PDC bit” with high-quality drilling fluid were applied in 4 wells of the 12th drilling platform and the drilling cycle was greatly shortened.The construction of Jiaoye 12-4HF sets the record of the longest horizontal section in unconvention-al shale gas horizontal well for Sinopec Group, and drilling speed is effectively improved.关键词
页岩气/钻井/水平井/井壁失稳/焦石坝地区Key words
shale gas/drilling/horizontal well/borehole instability/Jiaoshiba area分类
天文与地球科学引用本文复制引用
王国庆,王建波,陈广,郭少帅,张磊,许义亮..焦页非常规页岩气井优快钻井技术[J].探矿工程-岩土钻掘工程,2014,(10):17-21,5.
