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- 저자 : Tiantai Li (검색결과 1 건)
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Successful New Inhibitive Water-Based Fluid Application, Sulige Gas Field, China
Ming Zhang,Tiantai Li,Ziqiang Xu,Da Li 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.9
This study developed a new type of shale drilling anti-collapse inhibitor and compounded a set of stable shale water-based drilling fluid for horizontal wells to effectively solve hole shrinkage, collapse, tool sticking, and other complex downhole problems involved in the shale drilling at the horizontal section of the Sulige gas field. Laboratory experimental evaluations indicated that this system had a strong inhibitory effect on shale formation and sound compatibility. After its weight reached 1.20g/cm3, the system exhibited a stable rheology, lubricity, filter loss, high recovery rate of rock debris, and low formation damage. The mud cake was smooth, thin, tough, and compact. The drilling fluid also maintained suitable anti-collapse capability, lubricity, rheology, and highly efficient debris-carrying and well-flushing ability in its field application in the drilling of the shale section of the Sulige gas field. The tripping operation exhibited no clear resistance and sticking. This system achieved significant effects and satisfied the requirements of the drilling construction of a horizontal well in the Sulige gas field.
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