松辽盆地南部海坨子—大布苏地区青山口组沉积微相研究DEPOSITIONAL MICRO-FACIES STUDY OF THE QINGSHANKOU FORMATION IN THE HAITUOZI-DABUSU AREA OF THE SOUTHERN SONGLIAO BASIN
张永旺,曾溅辉,邓宏文,高霞,陈冬,张亚平
摘要(Abstract)：
根据岩芯和钻测井资料,以地质相、测井相分析为基础,对松辽盆地南部海坨子—大布苏地区青山口组进行了详细的沉积相研究,在研究层段识别出了三角洲平原分流河道、分流河道间、三角洲前缘分支河道、河口坝、席状砂、滑塌浊积扇等亚相和微相。在前人研究的基础上,应用高分辨层序地层学理论与研究方法,对青山口组地层开展高分辨率层序地层的划分与对比工作,建立了研究区的层序地层格架,并按识别出的5个中期旋回,详细分析沉积微相的平面展布特征。强调这5个中期旋回中上升半旋回低水位期浊积扇和下降半旋回高水位期三角洲前缘亚相的河口坝、远砂坝沉积是研究区青山口组有利的储集岩相带,其中浊积扇沉积是该区形成岩性油气藏的有利储集体。根据生油岩及储油岩叠置组合关系,指出海坨子地区东南部浊积扇发育区是青山口组有利油气聚集区带。
关键词(KeyWords)： 储层;沉积微相;青山口组;白垩系;海坨子—大布苏地区;松辽盆地;吉林省
基金项目(Foundation): 中国博士后科学基金资助项目(200704204929)和吉林油田公司联合资助
作者(Author): 张永旺,曾溅辉,邓宏文,高霞,陈冬,张亚平
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