伏龙泉断陷白垩系油气成藏规律及优势储层特征  

Cretaceous hydrocarbon accumulation and favorable reservoir characteristics in Fulongquan sag

作　　者：傅锚 王福魁[2] 高宇慧[3] 李庆生[2] 徐文秀 王德海[1] FU Mao;WANG Fu-kui;GAO Yu-hui;LI Qing-sheng;XU Wen-xiu;WANG De-hai(College of Earth Sciences,Jilin University,Changchun 130061,China;Chengde Petroleum College,Chengde 067000,Hebei,China;Research Institute of Petroleum Exploration and Development,PetroChina Xinjiang Oilfield Company,Karamay 834000, Xinjiang,China;Fengcheng Oilfield Operation District,PetroChina Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China)

机构地区：[1]吉林大学地球科学学院,长春130061 [2]承德石油高等专科学校,河北承德067000 [3]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 [4]中国石油新疆油田分公司风城油田作业区,新疆克拉玛依834000

出　　处：《世界地质》2018年第1期207-217,共11页World Geology

基　　金：国家自然科学基金(41202072)

摘　　要：伏龙泉断陷是松辽盆地东南隆起区的次级构造单元,处在反转构造较为强烈的背斜带上。在研究区基本成藏条件研究的基础上,总结了伏龙泉断陷油气成藏规律及优势储层特征。伏龙泉断陷油气主要来自沙河子组和营城组的烃源岩;成藏期分为三期:泉头组—嫩江组沉积时期、嫩江组沉积末期构造运动时期、嫩江组沉积末期构造运动之后至现今。构造是控制伏龙泉断陷成藏的重要因素,断陷深部油气藏具有先成藏后致密、近源早成藏的特征,早期成藏的储层具有好的物性条件;浅部油气藏均为次生油气藏,成藏受嫩江组末期构造运动控制。Fulongquan sag is a second-order structural unit of the southeast uplift in Songliao Basin,and lies in an anticline belt with strong inversion structure.Based on the study of basic conditions of hydrocarbon accumulation in the study area,the authors summarize the hydrocarbon accumulation and favorable reservoir characteristics of Fulongquan sag.The oil and gas in Fulongquan sag mainly come from the source rocks of Shahezi Formation and Yingcheng Formation.The accumulation occurred in three periods:deposition period of Quantou-and Nenjiang formations,end-Nenjiang Formation structural period,and post-Nenjiang Formation period.Structure is the most important factor to control the hydrocarbon accumulation in Fulongquan sag,deep oil-gas reservoirs possess the characteristics of accumulation prior to the compaction and source-proximal early accumulation.The reservoir of early accumulation has better physical properties.Shallow reservoirs are all secondary accumulations,which are controlled by the tectonic movement at the end of Nenjiang Formation.

关 键 词：松辽盆地 断陷 油气成藏 储层 致密 

分 类 号：P534.53[天文地球—古生物学与地层学] P618.130.2[天文地球—地质学]