Brief Analysis on Application of Compound Salt Drilling Fluids

Lei ZHANG

Abstract


The popularization and application of compound salt drilling fluid has become the new normal of drilling in Shengli Oilfield. In view of the problems existing in the exploration period, the construction plan and supporting measures are gradually improved to form a mature construction technology. Compared with the conventional polymer drilling fluid, the improved compound salt drilling fluid not only reduces the hole enlargement rate by 70.61%, improves the ROP by 30.59% and achieves 100% success rate of one-time logging, but also solves the reaming problem in the upper Ng Formation caused by sticking and wellbore stability problem in the lower Es Formation, which is worthy of popularization and application.


Keywords


Compound salt; Strong inhibition; Wellbore stability; Speed increase

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References


Pei, J. Z., & Wang, S. Y. (2009). Drilling fluid technology of Shengli Oilfield [M]. Dongying: China University of Petroleum Press, 2009

Yan, J. N. (2009). Drilling fluid technology (1st ed.). Dongying: China University of Petroleum Press.

Liu, Q. L. (2005). Research and application of high calcium drilling fluids. Petroleum Drilling Technology, 33(6).

Zhou, G. Z., Wang, W. Z., Mu, J. L., Cao, Z. Y., Yin, L., Zhang, G., & Yang, P. M. (2017). Discussion on carbonate/bicarbonate contamination of drilling fluids. Drilling Fluids and Completion Fluids, 27(6), 42-45




DOI: http://dx.doi.org/10.3968/12104

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