Lacustrine shale oiliness influenced by diabase intrusions in the Paleogene Funing Formation,Subei Basin,China
作者机构:State Key Laboratory of Petroleum Resources and ProspectingChina University of Petroleum(Beijing)Beijing102249China College of GeosciencesChina University of Petroleum(Beijing)Beijing102249China International Petroleum Exploration and Production CorporationSINOPECBeijing100029China Research Institute of Exploration and DevelopmentSINOPEC Jiangsu Oilfield CompanyJiangsu225009China
出 版 物:《Petroleum Science》 (石油科学(英文版))
年 卷 期:2023年第20卷第5期
页 面:2683-2694页
核心收录:
学科分类:081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
基 金:financially supported by the National Natural Science Foundation of China(Grant No.42072150)
主 题:Shale reservoirs Diabase intrusion Oiliness Funing formation
摘 要:The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide *** research has primarily the hydrocarbon generations capability of source rocks and the quality of reservoirs by diabase ***,rare systematic research has been conducted on the oiliness and enrichment *** be specific,the diabase intrusive zone,the contact metamorphic zone and the normal shale zone of the Funing Formation in the Gaoyou Sag,Subei Basin were taken as the object of this ***,in this study,the hydrocarbon generation quality,reservoir quality,and oil-bearing quality of diabase-metamorphic zone-normal shale were evaluated using X-ray diffractions,argon ion polishing-field emission scanning electron microscope,energy spectrum,rock slice/light-sheet microscopic observations,organic geochemical tests,N_(2) gas adsorption and 2D NMR *** results indicated that the intrusive zone,the metamorphic zone,and the normal zone were formed in order by the degree of effect of diabase ***,the oil content of different parts exhibited significant heterogeneity due to the baking effect of diabase,and the metamorphic zone had the significantly better oil-bearing nature than the intrusive ***,a distribution model was proposed for the diabase intrusive zone-metamorphic zone-normal surrounding rock zone.