松辽盆地北部登娄库组底界特征及其油气地质意义  

Characteristics and petroleum geological significance of the bottom interface of denglouku formation in the Northern Song-liao Basin

作　　者：刘淑芬[1] 王丽静[2] 张冬杰[1] 许玲玉[1] 

机构地区：[1]东北石油大学地球科学学院,大庆163318 [2]大庆油田有限责任公司勘探开发研究院,大庆163712

出　　处：《地球物理学进展》2014年第1期217-222,共6页Progress in Geophysics

基　　金：国家自然科学基金青年基金(41004057);国家自然科学基金青年基金(41104088)联合资助;中国石油科技创新基金(2011D-5006-0304)

摘　　要：详细研究了登娄库组底界面的不整合平面展布特征,该界面在地震上有明显的削截上超标志,根据所处位置不同主要表现为5种不同岩性特征,岩相、曲线特征突变明显.综合地质地球物理资料研究了不整合的控油及对油气的影响,结果表明:受不整合发育程度控制,盆地不同位置具有不同的油气圈闭特征,其中削藏地层圈闭,超覆地层圈闭,与断裂共同作用控制的削截超覆圈闭控油意义较大,不整合面及其上下的可渗透层是油气运移的良好通道,不整合面上的超覆砂体是登娄库组底部油气聚集的良好场所.The paper studies the regional unconformity of the bottom interface of the Denglouku formation, the interface has the obvious makers of the truncation and overlap in the seismic section, there are five lithology features in different places, the mutation feature in lithofacies and the curve are obvious. Combining the geology and geophysical data, studying the oil- control effect of unconformity and the influence on hydrocarbon, the paper shows that the different hydrocarbon traps relate to the development degree of the unconformity, the stratigraphic truncation trap, the stratigraphic overlap trap and truncation-overlap trap controlled by the interaction between fracture and the unconformity have important significance, the unconformity and permeability layers in the adjacent layer are the best channels, the overlap sand above the unconformity is the good place in which the oil and gas accumulate.

关 键 词：登娄库组底界面 不整合 油气圈闭 超覆砂体 

分 类 号：P631[天文地球—地质矿产勘探]