石油钻采工艺2011，Vol.33Issue(4)：23-26,37,5.
希望油田钻井技术研究及应用
Study and application of drilling techniques in Xiwang Oilfield
摘要
Abstract
Because the complicated formations (such as mudstone, salt bed and gypsolyte ) are drilled in Xiwang Oilfield, three-section casing is usually taken as the well structure of exploration wells, but the drilling cost is high, and the drilling period is long. The drilling technique of development wells is determined to be used to decrease drilling cost and to speed up the pace of productivity construction. The advantages of the well are normal formation pressure and high formation fracture pressure gradient, but two problems must been resolved which are wall stabilization of mudstone, salt bed and gypsolyte and formation damage control. To ensure wall stabilization, zwitterionic polymer drilling fluid is selected and macromolecule polymer must been maintained at reasonable value the technique of temporary shielded plugging is applied to protect the two formations. Therefore, the drilling technique of development wells is formed by combining the optimization technique of well structure with drilling fluid technique, and well structure may be optimized from three-section casing to two-section casing. The results of the field application of the technique show that the drilling operation is smooth, the drilling period is shortened, the drilling cost is reduced, the productivity is high, and the economical and social benefit are apparent.关键词
希望油田/井身结构/优化技术/井壁稳定/油层保护/钻井成本/钻井技术Key words
Xiwang Oilfield/ well structure/ optimization technique/ well-bore stabilization/ formation damage control/ drilling cost/ drilling technique.分类
能源科技引用本文复制引用
吴志均,唐红君,陈刚,李俊波..希望油田钻井技术研究及应用[J].石油钻采工艺,2011,33(4):23-26,37,5.基金项目
国家科技重大专项“高压碳酸盐岩酸性油气田钻完井配套技术集成及研发应用示范”(编号:2011ZX-05059-002)部分内容. （编号:2011ZX-05059-002）
