中等井网密度控制下的浅水三角洲相隔夹层研究——以渤中25-1南油田为例  

Study of restraining barrier and interbeds in shallow water delta fades controlled by middle well-pattern density-taking Bozhong 25 -1 Nan oilfield as example

作　　者：加东辉[1] 杨香华[1] 吴小红[1] 赵利昌 周士科 

机构地区：[1]中国地质大学(武汉) [2]中海石油(中国)有限公司天津分公司

出　　处：《油气地质与采收率》2005年第2期19-22,共4页Petroleum Geology and Recovery Efficiency

摘　　要：隔夹层是储层非均质性研究的重要内容。通过岩心观察,结合评价井的测井资料和取心分析结果,建立了浅 水三角洲相隔夹层的划分标准,将其划分成四种类型。归纳总结了各类隔夹层的成因、岩性、电性和孔渗特征。依 据测井地质资料,对研究区100余口井目的层段的隔夹层进行了划分和统计。通过分析各层段的隔层厚度等值线 图,建立了研究区浅水三角洲相隔层的四种展布模式。针对各种模式的展布特点,对开发层系的划分和井网的布 置提出了合理的建议。Study of restraining barrier and interbeds is an important part of reservoir heterogeneity. According to core observation and analysis of logging data and coring results of evaluation well, the classification criterion of restraining barrier and interbeds in shallow water delta facies was built up and they were divided into four types. The origin, lithology, electricity and characteristics of porosity and permeability of different types were summerized. On the basis of their logging geologic data, the restraining barriers and interbeds of target strata in more than 100 wells of the study area were statistically classified. After analysis of the isopach maps of restraining barrier thickness in each layers, four spread models of the restraining barriers in shallow water delta facies of the study area were built. Aiming at the spread characteristics of each model, some rational suggestions for the classification of development strata and well pattern arrangement were made.

关 键 词：三角洲相 隔夹层 浅水 密度控制 井网 油田 中等 储层非均质性 分析结果 测井资料 划分标准 归纳总结 地质资料 等值线图 开发层系 研究区 评价井 层段 隔层 模式 展布 岩心 取心 

分 类 号：TE345[石油与天然气工程—油气田开发工程] P618.130.2[天文地球—矿床学]