长岭凹陷所图地区青山口组沉积微相及砂体分布特征  

Sedimentary microfacies and sand body distributing character in Qingshankou Formation of Suotu area in Changling sag

作　　者：董福湘[1] 陈玉魁[2] 曲希玉[3] 季超 曲前中[2] 

机构地区：[1]长春工程学院勘查与测绘学院,长春130021 [2]中国石油化工股份有限公司东北油气分公司,长春130062 [3]吉林大学地球科学学院,长春130061 [4]有色金属华东地质勘查局地质调查(集团)有限公司,南京210007

出　　处：《世界地质》2011年第1期71-79,共9页World Geology

基　　金：国家科技服务企业行动计划项目(2009GJB10038);吉林省教育厅科学技术研究"十二五"规划项目(吉教科合字[2011]第245号)联合资助

摘　　要：通过分析长岭凹陷所图地区的岩心、测井及地震等资料,研究了该区青山口组沉积微相特征及砂体展布特征。结果表明:所图油田高台子油层主要为三角洲沉积;青山口组储层可划分为三角洲平原亚相沉积和三角洲前缘亚相沉积,分别发育分流河道微相、分流间薄层砂微相、水下分流河道微相和水下分流间薄层砂微相;目的层中,GI1层、GIV2层砂岩发育较差,GI2层、GIV1层砂岩发育较好,呈片状大面积分布。By analyzing the drill core,well logging and seismic profile in Suotu area of Changling sag,Qingshankou Formation sedimentary microfacies and characteristics of sand body distribution in this area are studied.The result indicated that the Gaotaizi oil layer in Suotu oil field was mainly the delta deposit;the Qingshankou reservoir can be divided into the delta plain subfacies deposition and the delta front subfacies deposition,which developed in distributary channel microfacies,interdistributary thin layer granulated microfacies,underwater distributary channel microfacies and underwater interdistributary thin layer granulated microfacies.In objective layers,GI1 and GIV2 layers are poorly developed sandstone,but GI2 and GIV1 layers are well developed sandstone in a larger-area lamellar distribution pattern.

关 键 词：沉积微相 砂体分布 青山口组 所图地区 

分 类 号：P618.130.21[天文地球—矿床学]