张喜龙;杨旭;谢俊;秦磊;

• 1:中国海洋大学海洋地球科学学院

• 2:大庆钻探工程公司测井公司

• 3:山东科技大学地质科学与工程学院

摘要(Abstract)：

松辽盆地下白垩统青山口组是盆地内中生界最重要的含油层段之一,青山口组三段Ⅻ砂组储集砂体发育,成因类型多样.为分析大情字井油田Ⅻ砂组沉积微相类型,在岩心观察的基础上,综合分析区域地质、地震、测井、录井、粒度、岩性等资料,认为研究区发育水退背景下的三角洲沉积体系.Ⅻ砂组沉积时期,湖盆快速衰退,物源水系不稳定,主要来自于西南和南部的通榆─保康水系,三角洲朵体发生大规模迁移,继承青二段时期三角洲沉积的特点,三角洲平原和前缘亚相发育较广,前三角洲较少发育,识别的主要微相类型有分流河道、水下分流河道、河口砂坝、前缘砂坝和滨外砂坝等.储层物性受沉积微相的影响,研究区分流河道、河口砂坝储集砂体物性显示最好.

关键词(KeyWords)：大情字井油田;Ⅻ砂组;三角洲沉积;沉积微相;储层物性;沉积特性

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41172109);; 山东省自然科学基金项目(ZR2011DM009)

作者(Author):张喜龙;杨旭;谢俊;秦磊;

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