Abstract：Hetao Basin is an oil-gas bearing superimposed basin developed in the Mesozoic to the Cenozoic. Its discovered oil and gas reservoirs are characterized by large trap scale and high fullness, which are distributed around oil generating centers. At present, the exploration degree in Linhe Depression is very low, and the proved rate of Cretaceous Paleogene resources is only 14.6%, which still has great potential for oil and gas exploration. Therefore, the characteristics of oil and gas accumulation are analyzed based on structure, source rock, and reservoir characteristics to point out the further direction of oil and gas exploration. This study shows that the source-reservoir-circle connection system dominated by faults and sandstone is the main controlling factor for oil and gas accumulation and enrichment in Linhe Depression. There are three types of reservoir accumulation assemblages including self-gene-ration and self-storage, lower generation and upper storage, and upper generation and lower storage. The further favorable exploration directions are Zage structure, Tubudong structure, Wulantuk structure, and Xinghuaxi structure.
郭增虎, 万照飞, 王鹤华, 王鹏, 刘滨莹, 唐美珍. 河套盆地临河坳陷油气藏特征及勘探方向[J]. 石油地球物理勘探, 2022, 57(s2): 185-192.
GUO Zenghu, WAN Zhaofei, WANG Hehua, WANG Peng, LIU Binying, TANG Meizhen. Oil and gas reservoir characteristics and exploration direction of Linhe Depression in Hetao Basin. Oil Geophysical Prospecting, 2022, 57(s2): 185-192.
郭忠铭,于忠平.河套弧形地堑系构造特征和演化机制及其油气勘探[J].石油勘探与开发,1990,17(3):11-20.GUO Zhongming,YU Zhongping.Structural characteristics,mechanism of evolution and petroleum prospecting of Hetao graben system[J].Petroleum Exploration and Development,1990,17(3):11-20.
[2]
赵重远,郭忠铭,惠斌耀.河套弧形构造体系及其形成和演化机制[J].石油与天然气地质,1984,5(4):349-361.ZHAO Chongyuan,GUO Zhongming,HUI Binyao.Hetao arcuate tectonic system and their mechanism of formation and evolution[J].Oil & Gas Geology,1984,5(4):349-361.
[3]
张锐锋,于福生,刘喜恒,等.河套盆地临河坳陷及其周边地区中—新生代成盆演化特征[J].石油与天然气地质,2020,41(6):1139-1150.ZHANG Ruifeng,YU Fusheng,LIU Xiheng,et al.Evolutionary characteristics of Linhe Depression and its surrounding areas in Hetao Basin from the Mesozoic to Cenozoic[J].Oil & Gas Geology,2020,41(6):1139-1150.
[4]
罗丽荣,李剑锋,赵占良,等.河套盆地临河坳陷新生界油源对比及其勘探意义[J].中国石油勘探,2019,24(3):323-330.LUO Lirong,LI Jianfeng,ZHAO Zhanliang,et al.Cenozoic oil-source correlation and exploration significance in Linhe Depression,the Hetao Basin[J].China Petroleum Exploration,2019,24(3):323-330.
[5]
付锁堂,付金华,喻建,等.河套盆地临河坳陷石油地质特征及勘探前景[J].石油勘探与开发,2018,45(5):749-762.FU Suotang,FU Jinhua,YU Jian,et al.Petroleum geo-logical features and exploration prospect of Linhe Depression in Hetao Basin,China[J].Petroleum Exploration and Development,2018,45(5):749-762.
[6]
张以明,张锐锋,王少春,等.河套盆地临河坳陷油气勘探重要发现的实践与认识[J].中国石油勘探,2018,23(5):1-11.ZHANG Yiming,ZHANG Ruifeng,WANG Shaochun,et al.Practice and understanding of great discovery in oil and gas exploration in Linhe Depression of Hetao Basin[J].China Petroleum Exploration,2018,23(5):1-11.
[7]
杨雪,雷越,张金川.河套盆地临河坳陷吉兰泰地区基岩裂隙含油特征及评价[J].特种油气藏,2019,26(4):1-8.YANG Xue,LEI Yue,ZHANG Jinchuan.Oiliness characterization and evaluation of the jilantai bedrock fissures in Linhe Depression of Hetao Basin[J].Special Oil & Gas Reservoirs,2019,26(4):1-8.
[8]
张振宇,胡祥云,王刚,等.内蒙古狼山成矿带深部地质结构特征[J].石油地球物理勘探,2022,57(4):982-991.ZHANG Zhenyu,HU Xiangyun,WANG Gang,et al.Characteristies of deep geological structure of Lang-shan metallogenic belt in Inner Mongolia[J].Oil Geophysical Prospecting,2022,57(4):982-991.
[9]
邱隆伟,穆相骥,李浩,等.鄂尔多斯盆地杭锦旗地区二叠系下石盒子组岩屑发育特征及其对储层物性的影响[J].石油与天然气地质,2019,40(1):24-33.QIU Longwei,MU Xiangji,LI Hao,et al.Characteristics of detritus development in the Permian Lower Shihezi Formation in Hangjinqi area and its influence on reservoir physical properties[J].Oil & Gas Geology,2019,40(1):24-33.
[10]
BRIAN J D,BRADLEY D R.Mesozoic structural architecture of the LangShan,North-Central China:intraplate contraction,extension,and synorogenic sedimentation[J].Journal of Structural Geology,2007,29(12):2006-2016.
[11]
赵孟为.河套盆地断裂活动的特征及其与油气的关系[J].西北大学学报,1988,18(2):85-94.ZHAO Mengwei.Characteristics of the fault activity in Hetao Basin and its relation with oil and gas[J].Journal of Northwest University,1988,18(2):85-94.
[12]
张锐锋,何海清,陈树光,等.河套盆地临河坳陷石油地质新认识与重大发现[J].中国石油勘探,2020,25(6):1-12.ZHANG Ruifeng,HE Haiqing,CHEN Shuguang,et al.New understandings of petroleum geology and great discovery in the Linhe Depression,Hetao Basin[J].China Petroleum Exploration,2020,25(6):1-12.
[13]
王会来,孙瑞娜,张锐锋,等.河套盆地厚层砂砾岩油藏特征及成藏主控因素:以临河坳陷吉华2X油藏为例[J].现代地质,2021,35(3):861-870,882.WANG Huilai,SUN Ruina,ZHANG Ruifeng,et al.Controlling factors of thick glutenite reservoir accumulation in Hetao Basin:a case study of Jihua-2X re-servoir,Linhe sag[J].Geoscience,2021,35(3):861-870,882.
[14]
MAGARA K.Thickness of removed sedimentary rocks,paleopore pressure,and paleotemperature,southwestern part of Western Canada Basin[J].AAPG Bulletin,1976,60(4):554-565.
[15]
郭增虎,王鹏,张敬东,等.渤海湾盆地束鹿凹陷新河断层特征及其对成藏影响[J].石油地球物理勘探,2018,53(增刊1):293-302.GUO Zenghu,WANG Peng,ZHANG Jingdong,et al.Character of Xinhe fault in Shulu Sag of Bohai Bay Basin and its effect of oil and gas accumulation[J].Oil Geophysical Prospecting,2018,53(S1):293-302.
[16]
杨克基,漆家福,余一欣,等.渤海湾地区断层相关褶皱及其油气地质意义[J].石油地球物理勘探,2016,51(3):625-636.YANG Keji,QI Jiafu,YU Yixin,et al.Fault-related folds and their petroleum geological significance in Bohai Bay Area[J].Oil Geophysical Prospecting,2016,51(3):625-636.
[17]
上官静雯.临河坳陷低—高构造格局与断裂的关系及其演化与有利成藏区分析[D].陕西西安:西北大学,2017.SHANGGUAN Jingwen.Analysis of the Relationship Between Low-High Tectonic Pattern and Faults in Linhe Depression and Its Evolution and Petroleum Entrapment Favorable Area[D].Northwest University,Xi’an,Shaanxi,2017.
[18]
门相勇,赵文智,张研,等.河套盆地临河坳陷石油地质特征[J].天然气工业,2006,26(1):20-22.MEN Xiangyong,ZHAO Wenzhi,ZHANG Yan,et al.Characteristics of petroleum geology of Linhe Depression in Hetao Basin[J].Natural Gas Industry,2006,26(1):20-22.
[19]
张昊祉.河套盆地临河坳陷油气成藏地质条件分析[D].陕西西安:西安石油大学,2015.ZHANG Haozhi.Research of Hydrocarbon Accummulation Conditions in Linhe Depression of Hetao Basin[D].Shiyou University,Xi’an,Shaanxi,2015.
