乳化柴油钻井液在石油欠平衡钻井中的应用

Application of Emulsified Diesel Oil Drilling Fluid in Under-balanced DriHing

摘要:

钻井液固相控制是欠平衡钻井成败的关键技术之一。乳化钻井液的配制、监控、维护直接影响油气的发现。结合SN308钻井施工,从地层负压值的设计,以及钻井液密度、水压力的计算,确定了乳化柴油钻井液的各项性能指标,并提出了使用和维护管理方法,在施工中得到成功的应用。

Abstract:

Solid control on drilling fluid is an essential technique for under-balanced drilling. Preparation, control and maintenance for emulsified drilling fluid will directly affect the forecast on oil and gas. With the drilling experience in SN308, each performance index of emulsified diesel oil drilling fluid was determined by design of negative pressure value of the formation and calculation on the fluid density and water pressure. The method of usage and maintenance of the fluid were suggested and applied successfully in the construction.