渤海S油田聚合物驱合理产液指数降幅研究  

STUDY ON THE REASONABLE REDUCTION DEGREE OF THE LIQUID PRODUCTION INDEX FOR POLYMER-FLOODED BOHAI OILFIELD S

作　　者：王晓超 王锦林 张维易 魏俊 孙瑫 WANG Xiaochao;WANG Jinlin;ZHANG Weiyi;WEI Jun;SUN Tao(CNOOC EnerTech-Drilling ＆ Production Co., Tianjin 300452, Chin)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《大庆石油地质与开发》2018年第3期104-108,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家科技重大专项"渤海油田化学驱配套工艺;方案优化研究及现场示范"(2016ZX05058-003-001);中国海洋石油总公司科技项目"海上聚合物驱增效工艺技术研究"(CNOOC-KJ135KJXM NFGJ2016-04)

摘　　要：为研究渤海S油田聚合物驱产液下降规律,进一步改善聚合物驱效果,运用油藏数值模拟技术,结合油藏动态分析,计算了不同条件下油井的合理产液指数降幅,并利用现场数据进行对比验证。结果表明:聚合物驱后油井产液指数下降具有普遍性,并受注聚合物时机、油井位置、周围是否有注水井的影响;注聚合物区块内,无水井干扰的油井合理产液指数降幅为30%~50%,有水井干扰时油井合理产液指数降幅为10%~30%,产液指数降幅位于合理降幅范围内的油井,聚合物驱效果较好。In order to study the descending law of the polymer-flooded liquid production index for Bohai Oilfield S and further improve the effects of the polymer flooding,the reasonable reduced degree of the liquid production index under different conditions of the oil producer was calculated by using the reservoir numerical simulating technique and reservoir dynamic analysis. And moreover with the help of the field data,the comparison and verification were conducted. The results show that the decline of the liquid production index after the polymer flooding is universal,and it is influenced by the timing of the polymer injection,the location of the oil wells and the surrounding water injection; Within the polymer flooded block,the liquid production index is reasonably reduced by 30%-50% if no water injection well interfere,while the decline degree is 10%-30% if there is the disturbance. For the producers which the liquid production index reduction within the reasonable range,the polymer flooding effects are much better.

关 键 词：聚合物驱 产液指数 合理降幅 数值模拟 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]