水驱典型区块综合治理及效果分析

Comprehensive curing to a typical developmental block and the analysis of curing effectiveness

从不同类型油层宏观地质统计与沉积微相的研究中认为,剩余油主要分布在成片差层、表外储层和相对变化较大、平面非均质严重的过渡状砂体中,其次为厚油层内未水淹型剩余油。针对这些地质依据,相应采取加强注水调整、对低效井进行分类治理、周期注水等手段,提高了区块的整体开发效果。

Basing on the macro- geological statistics and sedimentary micro- facies study of different reservoirs,this paper proposes that the remaining oil mainly distributes in slice poor reservoirs,untabulated reservoirs and the transitional sand bodies with apparent relative variety and areal heterogeneity,and there is also unwatered- out remaining oil. Accoding to these geological evidence,improved waterflooding adjustment,classified curing for low efficiency wells and cyclic water injection are performed to improve the development effect of the block.