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优化布井方式确定合理井网密度一直是油田开发中一个重要的问题。已投产的聚合物驱区块布井经验表明,聚合物驱布井方式直接影响着聚合物的注入速度和采液速度,决定了注入周期、见效时间、见效程度、接替稳产时机,最终影响采收率提高幅度。因此,合理的布井方式是聚驱开发的基础和前提。本文以优选喇南中西一区二类油层聚合物驱布井方式为研究目的,分不同井距对研究区块的砂体控制程度、聚合物控制程度进行分析,结合喇南中西一区二类油层聚驱数值模拟,优选出喇南中西一区二类油层合理井距范围,最后通过分析对比三套布井方式确定出了喇南中西一区二类油层聚合物驱最合理的布井方式。
Optimizing the method of well distribution to determine reasonable well density has always been an important issue in oilfield development. Production wells have been put into operation experience shows that polymer flooding wells directly affect the polymer injection rate and the rate of liquid production, determines the injection cycle, the effective time and effectiveness, to take over the timing of stable production, the final impact of mining Yield increase. Therefore, a reasonable method of well drilling is the foundation and premise for the development of poly flooding. In this paper, we chose the second type of polymer flooding and well drilling in the western and southern area of Laonan as research purpose, analyzed the control degree of the sand body and the degree of polymer control in different blocks from different well spacing, The numerical simulation of reservoir poly flooding is carried out to select the reasonable range of well spacing of the second type oil reservoir in the central and western region of Laonan. Finally, the most reasonable well drilling mode .