Brief Analysis on Application of Compound Salt Drilling Fluids

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.