东濮凹陷文南油田文79块沙二下亚段沉积微相研究  

Sedimentary microfacies in the lower 2nd member of Shahejie Formation in the Wen 79 block of the Wennan Oilfield in Dongpu depression

作　　者：孙中强[1,2] 张金亮[1,2] 范忠礼[1] 刘龙龙[1] 薛欢欢[1] 于涛[1] 

机构地区：[1]山东科技大学地球科学与工程学院,山东青岛266590 [2]北京师范大学资源学院,北京100875

出　　处：《中国科技论文》2015年第15期1839-1844,1849,共7页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20110003110014)

摘　　要：目前对文南油田文79断块沙二下亚段油藏的沉积微相研究还存在一些争议,重新认识研究区沉积微相,对后期开展精细油藏描述,指导剩余油的挖潜,具有重要的现实意义。对研究区岩石学特征、沉积构造特征、粒度特征、测井资料等进行综合分析和沉积微相建模,认为文79断块沙二下亚段发育一套干旱、半干旱环境下的分支河沉积体系,识别出河道充填沉积、近漫溢、远漫溢和河漫湖泊等沉积微相类型。Sedimentary microfacies in the lower 2nd member of Shahejie Formation reservoir in the Wen 79 block have been inves-tigated for many years,at present there are still some unsolved controversies.Microfacies analyses in studied area have an impor-tant practical significance in finely describing reservoir and exploiting the remaining oil.Based on comprehensive analyses of pet-rological characteristics,sedimentary structure,grain size characteristics,logging data and sedimentary microfacies modeling,we think the lower 2nd member of Shahejie Formation in the Wen 79 block was deposited in Distributive Fluvial Systems in arid and semiarid climate.River sedimentary filling,nearly overflowing,far overflowing and alluvial lake microfacies have been recog-nized.

关 键 词：地质学 沉积微相 文79断块 沙二下亚段 分支河 微相划分 沉积微相建模 

分 类 号：P618.13[天文地球—矿床学]