论文部分内容阅读
油田注水是开发过程中补充地层能量,提高采采收率最经济、最有效的方法。采用合注技术虽然可以满足注水保持地层压力的工艺要求,但因曲堤油田部分区块、井组油层的非均质性较强,笼统注水时出现注入水沿高渗带单层突进,而低渗、薄差层未能发挥应有的潜力,使层内、层间、平面矛盾更为突出。因此,随着油水井精细化管理水平地不断提高,为满足不同区块、不同开发层系对能量的需求,采用分层注水工艺分层补充地层能量,通过分层注水,一些薄差层、难动用层的能量得到了有效补充,油藏采收率得到提高,开发形势日趋好转。
Oilfield waterflooding is the most economical and effective way to replenish formation energy during the development process and increase recovery rate. Although the injection technology can meet the process requirements of water injection to maintain the formation pressure, due to the heterogeneity of well blocks in some blocks of Qudi Oilfield and the injection of water in general injection, Hypotonic, thin difference layer failed to play its due potential, so that layers, layers, and plane conflicts are more prominent. Therefore, with the fine management of oil and gas wells continuously improving level, in order to meet the different blocks, different development strata of the energy demand, stratified water injection process stratified to supplement the formation of energy through stratified water injection, some thin layer, Difficult to use layer of energy has been effectively added, the recovery rate of the oil reservoir has been improved, the development situation is getting better.