渤海垦利XX油田煤层井壁稳定钻井液技术

Drilling Fluid Technology for Borehole Stability of Coal Seams in Kenli XX Oilfield,Bohai Bay

通过近两年对渤海垦利油田煤层的研究,钻井液配方及性能进一步优化,改进为具有针对煤层的高效封堵、低密度、低失水钻井液体系,并且各项性能稳定,在煤层段钻井作业中,维持井壁稳定,起下钻、下尾管作业顺利,作业时效高。

Through the research of coal seam in Kenli Oilfield of Bohai in recent years,drilling fluid formulation and performance were further optimized,the drilling fluid system with high efficiency sealing,low density and low water loss for coal seam was improved,and the performance of drilling fluid is stable,in coal seam drilling operations,wellbore maintains stability,the operation of tripping and running liner is smooth,and the operation efficiency is high.