松辽盆地北部西斜坡青山口组四级层序划分及变化特征分析

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英文篇名：Fourth-order sequence division and its variation in Qingshankou Formation of the west slope, the northern Songliao basin 中文刊名：中国海上油气 英文刊名：China Offshore Oil and Gas 作者：祝彦贺 ; 王英民 ; 吕延防 ; 王树恒 ; 辛仁臣 ; 邢向荣 英文作者：Zhu Yanhe1 Wang Yingmin1 Lǚ Yanfang2Wang Shuheng2 Xin Renchen3 Xing Xiangrong4(1.Resoutces and Information Institute ; China University of Petroleum ; Beijing ; 102249 ; 2.College of Earth Sciences ; Daqing Petroleum Institute ; Heilongjiang ; 163318 ; 3.Research Center of Marine Geophysics ; China University of Geosciences ; Beijing ; 100083 ; 4.Heavy Oil Exploitation Company of Xinjiang Oil Company ; Xinjiang ; 834000) 中文关键词：松辽盆地 ; 北部西斜坡 ; 青山口组 ; 四级层序划分 ; 变化特征 英文关键词：Songliao basin ; the west slope in the northern ; Qingshankon Formation ; fourth-order sequence division ; variation 出版日期：2006-12-30 机构：中国石油大学(北京)资源与信息学院,中国石油大学(北京)资源与信息学院,大庆石油学院地球科学学院,大庆石油学院地球科学学院,中国地质大学(北京)海洋地学研究中心,新疆油田分公司重油开发公司, 年：2006 期：06 出版单位：中国海上油气

摘要

从地层沉积时期地形变化、湖平面变化、物源供应及气候变化等地质条件分析入手,辅以高分辨率地震解释成果,通过单井四级层序界面的岩性、电性特征分析和化石带确定,将松辽盆地北部西斜坡青山口组划分为5个四级层序,分别与高台子油层和葡萄花油层的砂组相对应。对研究区青山口组四级层序的分布特征以及四级层序内沉积体系平面变化与油气分布的关系进行了分析,以期为在研究区青山口组四级层序格架中确定沉积体系分布和寻找地层-岩性圈闭提供依据。
Several geological factors during Qing-shankou Formation deposition are first analyzed,such as landform,lacustrine level,provenance and climate,and the lithologic and electric features of fourth-order sequence boundary in the Formation and the associated fossil zones are determined in single wells by the assistance from seismic interpretation results with high resolution.Finally,five fourth-order sequences are divided in Qingshankou Formation of the west slope,the northern Songliao basin,and can be correlated with different sand(units) in G and P oil pays respectively.Furthermore,the fourth-order sequences distribution and the relationship between their areal changes and hydrocarbon distribution are analyzed in the study area,in order to provide bases for researching depositional systems and looking for stratigraphic-lithologic traps in the Formation.

引文

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