肯基亚克盐上Ⅳ区开发方式优选

Optimization of Development Mode in Kenkiyak Ⅳ Reservoirs

哈萨克斯坦肯基亚克油藏从1966年投入开发,至1982年16年间没有任何补充地层能量的措施,在此期间随着采出量的增加,地层能量不断下降,单井产能也随之下降。后期所投产的井含水较高,分析原因主要是边底水侵入造成,使得产能下降。针对这一问题,进行了井网优化设计以及优化反九点井网下的注采比,同时论证了提液可行性,优选提液幅度,指导下一步更好开发。

Kenkiyak reservoir was put into development in 1966,any supplement measure of the formation energy was not used from 1966 to 1982.In this period, with increasing of the output, the formation energy decreased, and the single well productivity also decreased. Water cut was higher in late wells; the main reasons were edge and bottom water invasion. In view of this problem, the well pattern optimization was carried out, and the injection production ratio under the anti-nine-point well pattern was optimized. At the same time, the feasibility of the liquid extraction was demonstrated; the liquid extraction rate was optimized.