昌吉凹陷西斜坡不整合对地层圈闭的控制作用  

Control effect of unconformity structure of west slope of Changji Sag on stratigraphic traps

作　　者：姚文礼 王利 刘诗茵 侯玉花 白天阳 刘群[5] YAO Wenli;WANG Li;LIU Shiyin;HOU Yuhua;BAI Tianyang;LIU Qun(College of Resources Exploration Engineering,Yangtze University,Jingzhou 434020,China;Fengcheng Field Operation Area,Xinjiang Oilfield Company,Petro China,Karamay 834000,China;SINO-Pipeline International Company,Beijing 100000,China;No.2Logging Branch,Bohai Drilling Engineering Co.,Ltd.,CNPC,Renqiu 062552,China;Luliang Field Operation Area,Xinjiang Oilfield Company,Petro China,Karamay 834000,China)

机构地区：[1]长江大学工程技术学院资源勘查工程学院,湖北荆州434020 [2]中国石油新疆油田分公司风城油田作业区,新疆克拉玛依834000 [3]中油国际管道公司,北京100000 [4]中国石油集团渤海钻探工程有限公司第二录井分公司,河北任丘062552 [5]中国石油新疆油田分公司陆梁作业区,新疆克拉玛依834000

出　　处：《断块油气田》2019年第5期545-549,共5页Fault-Block Oil & Gas Field

摘　　要：为了明确昌吉凹陷西斜坡地层油气藏分布特征及下一步勘探方向,文中在三维地震精细解释的基础上,综合应用测井、录井等资料,系统分析了研究区不整合结构的宏观样式及分布规律,进一步结合不整合的宏观样式以及不整合面上下地层岩性组合的配置方式,研究了地层圈闭的控制因素。研究表明:由凹陷区向凸起区依次发育平行式、平超式、截超式以及截平式等4种不整合宏观样式;针对不同宏观样式,系统开展盖层条件(泥岩顶板、风化黏土层)、遮挡条件(断裂、地层超覆线及地层削蚀线)等圈闭要素分析是在斜坡区寻找地层圈闭的关键。In order to clarify the distribution characteristics and future exploration direction of the stratigraphic reservoirs in the west slope of Changji Sag, the macro-styles and distributive rules of unconformity structure are analyzed systematically in this paper by using the data of well logs and drilling records with fine 3 D seismic data interpretation. The controlling factors of stratigraphic traps are further studied considering the configuration modes between the macro-styles and the lithological association around the surfaces of unconformity. The research suggests that four types of macro-styles, such as parallelism-parallelism, parallelism-overlap,truncation-overlap and truncation-parallelism were developed from the depression area to the bulge area in turn in the study area.Systematic analysis of cap rock condition(mudstone roofs and weathered clay layers) and occlusion condition(fault and stratigraphic overlying lines and erosion lines) are the key to searching for stratigraphic traps in the slope area.

关 键 词：不整合 宏观样式 岩性配置 地层圈闭 西斜坡 昌吉凹陷 

分 类 号：TE122[石油与天然气工程—油气勘探]