面向开发的河流相储层沉积微相精细描述技术——以林樊家油田LZ9块馆陶组为例  

Development-oriented fine description technology of sedimentary microfacies in fluvial reservoir:A case study of Ng in block LZ9 of Linfanjia Oilfield

作　　者：朱孟高[1] 杨兆刚[2] 陈雷[2] 吕维刚[2] 钱水华[2] 焦海燕[2] 冷彦云 ZHU Menggao;YANG Zhaogang;CHEN Lei;Lü Weigang;QIAN Shuihua;JIAO Haiyan;LENG Yanyun(SINOPEC Shengli Oilfield Company,Dongying City,Shandong Province,257000,China;Binnan Oil Production Plant,SINOPEC Shengli Oilfield Company,Binzhou City,Shandong Province,256600,China;Shengli Oilfield Grand Sunshine Technology Development Co.,Ltd.,Dongying City,Shandong Province,257000,China)

机构地区：[1]中国石化胜利油田分公司,山东东营257000 [2]中国石化胜利油田分公司滨南采油厂,山东滨州256600 [3]胜利油田盛光科技发展有限责任公司,山东东营257000

出　　处：《油气地质与采收率》2022年第6期39-48,共10页Petroleum Geology and Recovery Efficiency

摘　　要：利用测井相定量识别技术,在快速、高效识别单井沉积微相的基础上,对林樊家油田LZ9块馆陶组进行覆盖全区的连井沉积微相对比,结合古地貌、地震属性以及油水关系平面分布特征,多参数耦合分析,精细刻画馆陶组4砂组6(Ng4^(6))小层沉积微相砂体边界。结果表明:LZ9块馆陶组为河流相沉积,主要发育河道、天然堤、决口扇和泛滥平原沉积微相。Ng4^(6)小层发育NW—SE向河道,河道砂体全区广泛发育,呈条带状展布,延伸远(3~5 km),宽度大(>600 m);天然堤呈窄条带状或豆荚状发育于河道两侧,呈断续分布,宽度一般小于100 m;河道砂体连通性较好,注采收效大;天然堤储层横向连通性差,注采收效低。By quantitative identification technology of well logging facies,this paper rapidly and efficiently identified sedi⁃mentary microfacies of a single well and fully compared the sedimentary micro-facies of Neogene Guantao Formation(Ng)in block LZ9 of Linfanjia Oilfield.Furthermore,the boundary of each sand body in the 6th Submember of the 4th Member of Neogene Guantao Formation(Ng4^(6))was finely described through multi-parameter coupling analysis in terms of paleogeo⁃morphy,seismic attributes,and plane distribution characteristics of oil and water.According to the fine description,Ng in block LZ9 belongs to fluvial facies sediments which mainly develop sedimentary microfacies of the channel,natural levee,crevasse splay,and flood plain.The course of the channel in Ng4^(6) is NW-SE,and the sand bodies are widely developed in the channel.These sand bodies have a banding distribution and extend as far as 3-5 km,with a width of more than 600 m.The natural levee is intermittently distributed in a narrow band or pod structure on both sides of the channel,with a width of less than 100 m.The connectivity of sand bodies in the channel is positive,and the injection-production efficiency is high.However,the lateral connectivity of the natural levee reservoir is poor,and the injection-production efficiency is low.

关 键 词：面向开发 高密度井网 河流相 测井相定量识别技术 平面相识别技术 林樊家油田 

分 类 号：TE122.2[石油与天然气工程—油气勘探]