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作 者:陈西泮[1] 王全[1] 宁涛[1] CHEN Xi-pan;WANG QUAN;NING TAO(Yanchang Petroleum Co.Ltd.,Yan′an 716000,China)
出 处:《延安大学学报(自然科学版)》2021年第1期38-43,共6页Journal of Yan'an University:Natural Science Edition
摘 要:综合应用岩心、测井、岩石薄片等资料,从单井特征、连井对比、平面展布重点分析了该水下分流河道储集砂体成因类型、垂向叠置样式及平面接触样式。结果表明,富县地区长8致密油储层主要发育完整式水下分流河道砂体、削截式水下分流河道砂体、叠加式水下分流河道砂体3种成因类型;单河道砂体垂向叠置样式包括垂向孤立型、侧向相切型、侧向叠置型、垂向相切型,平面接触方式主要有间湾相隔式、水平搭桥式2种类型。该研究为致密油勘探开发、剩余油分布研究奠定了一定的地质基础。With the comprehensive application of core,well logging and rock slice data,this paper focuses on the genetic type,vertical superposition style and plane contact style of the reservoir sand body in the underwater distributary channel from single well characteristics,well correlation and plane distribution.The results show that there are three genetic types of Chang 8 tight oil reservoir in Fuxian area:intact underwater distributary channel sand body,truncated underwater distributary channel sand body and superimposed underwater distributary channel sand body.The vertical superposition style of single channel sand body includes vertical isolated type,lateral tangent type,lateral superimposed type and vertical tangent type,and the plane contact mode mainly includes bay interval type and horizontal bridge type.This study lays a geological foundation for the exploration and development of tight oil and the study of remaining oil distribution.
关 键 词:富县地区 鄂尔多斯盆地 长8致密油层 三角洲前缘砂体
分 类 号:TE122[石油与天然气工程—油气勘探]
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