摘要
介绍了大井眼密闭取心井高检１井所用ＭＬＨ－Ⅱ无机凝胶钻井液的特性、配方和性能。实践证明，这种钻井液具有独特的流变性和极强的剪切稀释能力，在０．１～０．３ｍ／ｓ极低环空返速下确保携岩和净化井眼要求，能有效抑制页岩失稳和抗污染，综合效益好。
The property, ingredients and performance of MLH-Ⅱ drilling fluid with inorganic gel usedin coring well Gao Jian Well No. 1 are introduced, and the fluid proves to have unique rheologicalproperty, strong shear thinning capability, annular return velocity of 0.1-0. 3m/s can effectivelyinhibit shate from collapsing and resist contamination and overall benefit is good.
出处
《石油钻探技术》
北大核心
1994年第3期30-32,共3页
Petroleum Drilling Techniques
关键词
大井眼
高压
密闭取心
钻井泥液
large hole
seated corinq with high pressure
inorganic get drillinq fluid
rheology
annular relurn velcoily.
