Wang Zhengliang, She Yaohui, Li Shulian, Zhang Zengyu, Zhen Derong, Li Jiancheng. RESEARCH AND APPLICATION OF ANTI-SLOUGHING DRILLING FLUID SYSTEM IN SHUANGNAN AREAS[J]. Oil Drilling & Production Technology, 1998, 20(3): 41-43. DOI: 10.3969/j.issn.1000-7393.1998.03.009
Citation: Wang Zhengliang, She Yaohui, Li Shulian, Zhang Zengyu, Zhen Derong, Li Jiancheng. RESEARCH AND APPLICATION OF ANTI-SLOUGHING DRILLING FLUID SYSTEM IN SHUANGNAN AREAS[J]. Oil Drilling & Production Technology, 1998, 20(3): 41-43. DOI: 10.3969/j.issn.1000-7393.1998.03.009
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RESEARCH AND APPLICATION OF ANTI-SLOUGHING DRILLING FLUID SYSTEM IN SHUANGNAN AREAS

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  • Aiming at the problem of unstable borehole wall in Shuangnan areas, a new type of borehole wall stabilizer-JHS was optimized and developed, and two fairly good anti-sloughing drilling fluid systems were optimized as well. The field testing of 5 wells showed that the average. drilling cycle is 58. 4d less than that of comparison well. The average enlargement rate of hole diameter was reduced by 16% and the primary success rate of electric logging was increased by 22%. The drilling fluid system has a better future for popularization and application.
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