大斜度井高压分注工艺技术

摘要

河南油田进入特高含水期，综合含水达到96％，储层油水分布复杂。为提高储层动用程度，减少无效注水，针对不同区块、不同井况开展满足油田精细注水的研究。通过研究大斜度井高压分注工艺管柱及配套工具，提高了注水管柱的整体耐压性能，并通过管柱组配将配水器均置于直井段内，投捞测试工艺与直井常规偏心配水的投捞测试工艺配套，解决了大斜度井投捞测试的难题，满足了精细注水的需要。%In the period of higher water contain in Henan Oilfield,the total water contain is up to 96% and its reservoir becomes further complicated.In order to improve reservoir producing extent and reduce ineffective injection,the study of investigation was carried out for precise injection in different blocks and well-conditions.A study of separated layer injection in high angle well using processing strings and matching tools,the pressure performance of full length string was im-proved.And a water distributor was inter-placed in straight well section and fishing test tech was adopted in combination of regular eccentric water distribution tools and fishing test tech.The dif-ficult problems of fishing in high angle well were solved and the requirement of precise injection was met.