大港段六拨油田网状河沉积及储层非均质性研究  

STUDY ON THE BRAIDED-RIVER SEDIMENTATION AND RESERVOIR HETEROGENEITY OF DUANLIUBO OILFIELD IN DAGANG AREA

作　　者：侯加根[1] 焦巧平[1] 幸华刚[1] 王秀娟[1] 

机构地区：[1]石油大学,山东东营257061

出　　处：《石油实验地质》2003年第4期399-402,共4页Petroleum Geology & Experiment

基　　金：国家"973"重点基础发展规划项目(G1999022508).

摘　　要：大港段六拨油田孔一段枣0油组为网状河沉积。通过岩心和测井数据观察,分析了本区网状河沉积的特征,划分出网状河砂坝、网状河道、网状河叉道、河道间、天然堤和泛滥平原6种沉积微相,并分析了每种微相的沉积和平面展布特征。由于网状河沉积能量较小,岩性细,具有多旋回性,表现为较强的层内、层间非均质性。平面上储层非均质性主要受控于沉积微相。由于网状河相变快,所以本区储层平面非均质性较强。The Zao0 oil group in the Kong1 Member of Duanliubo oilfield, Dagang area is braidedriver deposit. By observing core and loging data, the characteristics of braidedriver deposit in the area were analysed, braidedriver sandbar, braided channel, braidedriver branch, interchannel, natural levee and flood plain six sedimentary microfacies were divided, and the sedimentary and plane distributive characteristics of each microfacies were studied. As braidedriver deposit has lower energy, fine lithology and multiple cyclicity, it shows stronger intrastratal and interstratal heterogeneity. The heterogeneity of reservoirs was mainly controlled by sedimentary microfacies on the plane. As braidedriver facies changed rapidly, the plane heterogeneity of reservoirs in the area was stronger.

关 键 词：沉积微相 储层非均质性 网状河 段六拨油田 大港地区 

分 类 号：TE122.2[石油与天然气工程—油气勘探]