Discovery of a new Proterozoic paleo-reservoir and its oil source in the Jianchang Sag,Yanliao Faulted-Depression Zone,North China

作     者：Hong Xiao Mei-Jun Li Tie-Guan Wang Dong-Xia Chen Wu-Jiang Kang Yan-Shan Wang 

作者机构：State Key Laboratory of Petroleum Resources and ProspectingChina University of PetroleumBeijing102249China College of GeosciencesChina University of PetroleumBeijing102249China Research Institute of Petroleum Exploration and DevelopmentLiaohe Oilfield CompanyPetroChinaPanjinLiaoning 124010China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2022年第19卷第5期

页      面：1927-1938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：supported by the National Key Research and Development Program of China(No.2017YFC0603102) the Liaohe Oilfield Company,CNPC(Oil Accumulation Mechanism of Meso-Neoproterozoic Oil Reservoir in the Liaoxi Depression,NE China)(No.LHYT-KTKFYJY-2018-JS9798) 

主　　题：Proterozoic paleo-reservoir Biomarkers Carbon isotope Oil-source correlation Jianchang sag 

摘      要：The discovery of many Proterozoic primary oil and gas reservoirs around the world testifies that the Meso-Neoproterozoic petroleum is an energy resources realm worthy of *** paper firstly reports the occurrence of hydrocarbon accumulations in the Neoproterozoic Luotuoling Formation in the Jianchang Sag,the Yanliao Faulted-Depression *** observation shows that the lower sandstone member of the Luotuoling Formation contains yellow fluorescent liquid hydrocarbons,while the upper sandstone member is rich in solid *** analysis of the biomarkers and isotopic compositions reveals that the upper and lower reservoirs have different oil *** bitumen in the lower reservoir is rich in C_(19)-C_(20)tricyclic terpanes(TTs),13α(n-alkyl)-tricyclic terpanes and rearranged hopanes,but lacks gammacerane and steranes and depletes ^(13)C isotope(-33.4‰to-30.6‰).This is consistent with the properties of the Hongshuizhuang Formation source *** upper reservoir bitumen has C_(23)TT as the major peak among C_(19)-C_(23)TTs,lacks 13α(n-alkyl)-tricyclic terpanes,has a low abundance of rearranged hopanes,obvious distribution of gammacerane and steranes,and depletion of the^(13)C isotope;essentially the same as the Gaoyuzhuang Formation source *** discovery of oil seepage in the Luotuoling Formation of the Han-1 well is a promising indicator of the Precambrian oil and gas exploration potential of the Jianchang Sag.