刘宗堡,吕延防,杨志,李秋影,李迪

• 1:大庆石油学院地球科学学院
• 2:中海油能源发展股份有限公司监督监理技术分公司
• 3:大庆油田有限责任公司第四采油厂

摘要(Abstract)：

松辽盆地大庆长垣南部黑帝庙油层具有良好的浅层气开发潜力。应用高分辨率层序地层学原理,通过对各级基准面旋回结构、叠加样式的沉积动力学分析,利用1164口测井曲线和6口井岩芯资料,把松辽盆地大庆长垣南部黑帝庙油层划分为1个长期基准面旋回、4个中期基准面旋回、25个短期基准面旋回,提出了研究区北部为后期构造抬升而缺失的层序地层新格架。短期基准面旋回内储层沉积特征及单砂体展布规律研究表明:黑帝庙油层为松辽盆地北部物源控制的湖盆逐渐萎缩背景下形成的河控缓坡三角洲前缘亚相沉积体系,微相类型以水下分流河道、河口坝和远砂坝为主。依据区域性湖侵成因的9套暗色泥岩盖层把黑帝庙油层垂向上划分为9套储盖组合;生储盖组合特征及动态资料综合分析表明浅层气主要分布于长期旋回下降早期的中期旋回下降晚期或上升早期储层砂体中;单砂体展布规律与气源断层和构造的合理匹配是浅层气富集的主控因素,气藏类型主要为构造—岩性、断层—岩性圈闭,在以上研究的基础上应用气水解释模板在全区预测地质储量,其研究对指导整个松辽盆地北部浅层气勘探与开发具有重要理论意义和实际应用价值。

关键词(KeyWords)： 高分辨率层序地层学;地层格架;沉积特征;浅层气分布;嫩江组;白垩系;松辽盆地;黑龙江

Abstract:

Keywords:

基金项目(Foundation): 教育部高等学校博士学科点专项科研基金(No.2006220002)项目资助

作者(Author): 刘宗堡,吕延防,杨志,李秋影,李迪

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