摘要
城探1井是大庆塔东区块的首口超7000 m超深井;通过邻井资料分析,优化井身结构、钻具组合、钻井液体系,优选建立了适合古城区块的钻头序列;使用国产液动旋冲工具攻克了塔东Φ241.3 mm井眼的"黑被子"地层提速难题;大幅提高了机械钻速,缩短了钻井周期,为塔东古城区块树立了新标杆。
Well Chengtan - 1 is the first ultra-deep well over 7000m in Tadong block of Daqing oilfield. Through analyzing the data of the adjacent wells and optimizing the wellbore structure, BHA and drilling fluid system, a bit series suitable for Gucheng block was established. Using China-made hydraulic rotary tools, the difficult drilling speed improvement in ＂black quilt＂ formation of Tadong, where a 0241.3mm hole was located, was solved and the drilling cycle was shortened by higher ROP.
出处
《探矿工程（岩土钻掘工程）》
2017年第8期45-50,共6页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
超深井
钻井
井身结构
钻具组合
钻井液
液动旋冲工具
城探1井
uhra-deep well
drilling
well structure
BHA
drilling fluid
hydraulic rotary tools
well Chengtan - 1
