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喇嘛甸油田于 1973年投入开发, 实施注水采油, 目前油田综合含水达到 93%以上, 已进入特高含水采油期, 但油层的层间、层内、平面动用状况存在着较大差异。为搞清剩余油分布状况, 为聚驱数模和综合调整提供依据, 开展了南中块西部葡Ⅰ1—2油层水驱数值模拟研究工作。模拟结果表明, 剩余油饱和度分布不均匀, 西部过渡带和注采系统不完善的断层附近含油饱和度比较高, 葡Ⅰ1油层动用状况较差; 南中块西部葡Ⅰ22 和葡Ⅰ23 沉积单元发育较好, 动用程度较大, 最终采收率可达 39 6% ~43 5%, 而葡Ⅰ1单元则相对较差, 最终采收率只达到 28 1%。
Lamadian Oilfield put into development in 1973, the implementation of water injection and oil production, the current integrated oil water content reached 93% or more, has entered the ultra-high water cut oil recovery period, but the reservoir layers, layers, plane use of the situation there is a big difference. In order to find out the distribution of remaining oil and provide the basis for poly-flooding and integrated adjustment, the numerical simulation research on water flooding of Pu-1-2 reservoir in the south of Central South Block was carried out. The simulation results show that the distribution of remaining oil saturation is not uniform, the oil saturation near the fault zone in the western transitional zone and the injection-production system is relatively high, and the utilization status of the oil layer in the I-1 reservoir is poor. The results show that the recovery rate is 396% ~ 435%, while that of P1 is relatively poor, and the ultimate recovery rate is only 28.1%.