摘要
旅大5-2油田经过多年开发,东二上段部分井区储层非均质性强、油水流度比大,造成该区块层间动用不平衡。为改善注水井吸液剖面,抑制注入水突进,增加中低渗透层原油储量动用程度,减缓2号块东二上段含水上升速度,对旅大5-2油田2号块东二上段开展弱凝胶调驱技术室内研究及现场实施。结果表明,弱凝胶调驱收到了较好的效果,为海上油田提高原油采收率提供了新的思路和方法。
Strong reservoir heterogeneity and high water-oil mobility ratio of LD5-2 oilfield Ed 1I u area for many years led to disequilibrium between layers. In order to improve profile of injec- tion well, control break through of injected water, startup producing reserves of mid-low perme- able interval, and decrease the water ratio, laboratory study and field application of weak gel pro- file control technology were conducted in LD5-2 oilfield Ed H u area. The results showed that weak gel obtained good effect and provided new ideas and methods for enhancing oil recovery in offshore field.
出处
《石油与天然气化工》
CAS
CSCD
2013年第4期401-403,共3页
Chemical engineering of oil & gas
基金
国家科技重大专项子课题"海上大井距多层合采稠油油藏聚合物驱剩余油分布机理研究"(2011ZX05024-002-001)
