吴起油田吴仓堡区块长7地层构造特征研究  

Study on the Structural Characteristics of Chang7 Formation in Wucangbao Block of Yanchang Oilfield

作　　者：席建丽 刘祥 Xi Jianli;Liu Yang(Wuqi Oil Production Plant of Yanchang Oilfield company Limited,Yan'an717600)

机构地区：[1]延长油田股份有限公司吴起采油厂,陕西延安717600

出　　处：《石化技术》2023年第12期169-171,共3页Petrochemical Industry Technology

摘　　要：在大量收集研究区地质背景及前人研究成果的基础上,结合现有区域钻测井资料,对研究区219口钻井资料进行分析,并利用储层划分与对比的方法对吴仓堡地区长7油层组进行地层划分与对比,将长7油层组划分为长7_(1)、长7_(2)、长7_(3)3个亚层。根据地层划分与对比成果,编制完成研究层位顶面构造等值线图。研究区发育有3个鼻状隆起,且具有一定的继承性,这些隆起的存在与砂岩的发育程度以及油气的富集有一定关系。On the basis of collecting a large amount of geological background and previous research results in the study area,combined with regional drilling and logging data,219 drilling data in the study area were analyzed.The stratigraphic division and comparison of the Chang7 oil layer group in Wucangbao area were carried out using the method of reservoir division and comparison.The Chang7 oil layer group was divided into three sub layers:Chang7_(1),Chang7_(2),and Chang7_(3).Based on the stratigraphic division and comparison results,a contour map of the top surface structure of the research horizon has been prepared and completed.There are three nose shaped protrusions developed in the study area,which have a certain degree of inheritance.The existence of these protrusions is related to the degree of sandstone development and the enrichment of oil and gas.

关 键 词：油层对比 构造特征 鄂尔多斯盆地 

分 类 号：P618.13[天文地球—矿床学]