Application of Low Solid Film-forming System in Well “Wuye-1” in Wuwei Basin of Gansu

Abstract:

Wuye-1 is a shale gas basic geological survey well to identify the distribution of shale beds. The lithology is mainly mudstone, sandstone, shale, carbonaceous slate and limesone with large inclination, poor cementation, fracture and low wall strength in shallow layer. Low solid film-forming flushing fluid system was used in construction site to solve difficulties of formation中国地质调查局地质矿产调查评价项目“重点成矿带钻探冲洗液关键技术研究与示范”(编号：12120113097400 broken, collapsing and water sensitive drilling construction. The application of this system has good effects in wall protection, inhibition and cementation to ensure the smooth construction of the project.