靖安油田张渠一、二区长21^3沉积微相研究  

Study on sedimentary microfacies of Chang 2_1~3 in Zhangqu Ⅰ and Ⅱ areas,Jing'an Oilfield

作　　者：陈永峤[1] 靳文奇[2] 文志刚[1] 汪凌霞[1] 李友强[1] 

机构地区：[1]长江大学,湖北省荆州市434023 [2]中国石油长庆油田分公司第一采油厂

出　　处：《岩性油气藏》2008年第4期43-46,58,共5页Lithologic Reservoirs

摘　　要：从区域地质资料出发,利用岩石颜色、结构、沉积构造、砂体形态以及沉积层序等岩心相标志,结合测井曲线形态特征,研究靖安油田长213地层的沉积微相。研究表明,工区目的层是一套辫状河下三角洲平原亚相沉积,发育有水下分流河道、水下分流河道间湾、水下天然堤以及水下决口扇等沉积微相,指出水下分流河道微相砂体是本区占主导地位的骨架砂体,为进一步勘探和开发目的层提供了地质线索。Based on the regional geologic background, the rock color and texture, sedimentary structure, sand body distribution and sedimentary sequence combining with logging curves are applied to study the sedimentary microfacies of Chang 21^3 in Jing＇an Oilfield. The result shows that the target stratum in the study area is a suit of braided deltaic plain, consisting of underwater distributary channel, interdistributary bay, natural levee and crevasse splay, and that the underwater distributary channel sand bodies constitute the dominated reservoir, which provides geological foundation for the further exploration and development in the target stratum.

关 键 词：沉积微相 辫状河三角洲 下三角洲平原 延长组 靖安油田 

分 类 号：TE121.3[石油与天然气工程—油气勘探]