Characteristics,Distribution Patterns,and Classification of Volcanic Reservoirs in the Huanghua Depression,Bohai Bay Basin,China

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外文摘要：Identifying volcanic reservoir types and their distribution patterns in volcanic edifices is important for accurate prediction and exploration of hydrocarbon reservoirs.Herein,we analyzed the distribution patterns of different reservoir levels in volcanic edifices,discussed controlling factors,and reclassified reservoir types.This was done using core observations,whole-rock geochemistry,and reser-voir physical property analysis,combined with logging,drilling,seismic,and oil-gas test data.Reser-voirs can be divided into three classes based on their physical properties.The Mesozoic intermediate and basic rocks formed Class I reservoirs,most lithologies formed Class II reservoirs,and diabase in-trusions and tight volcanic rocks formed Class III reservoirs.Reservoirs form in different lithologies in the Huanghua depression due to weathering.Tectonic faults deepen the influence of weathering leading to the formation of reservoirs in tight.Additionally,volcanic rhythms and fractures control the vertical distribution of Cenozoic basaltic reservoirs.Volcanic reservoirs are classified into five types based on the main controlling factors and distribution patterns in volcanic edifices:tectonic-alteration,vesicle-fracture,weathered-effusive,weathered-eruptive,and weathered-tectonic types.Among these,the weathered-eruptive type can easily form Class I reservoirs,making it the best target for exploration.Whereas the weathered-tectonic and vesicle-fracture types tend to develop Class II reservoirs and can be potential targets.The new classification takes into account the relationship between reservoir levels and their distribution in volcanic edifices,it is more conducive to igneous reservoir prediction in the Huanghua depression.This study provides a novel idea for the classification and comparative study of igneous reservoirs in petroliferous basins.

外文关键词：

volcanic reservoir typesvolcanic edificecontrolling factorsweathering and tectonismHuanghua depressionpetroleum geology

作者：

Jian Huang、Changqian Ma、Shihui Zhang、Muyue Xu、Da Lou、Chongbiao Leng、Mutian Qin、Hongjun Li

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作者单位：

State Key Laboratory of Geological Processes and Mineral Resources,Faculty of Earth Sciences,China University of Geosciences,Wuhan 430074,China

Chongqing Industry Polytechnic College,Chongqing 401120,China

Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China

Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education,China University of Geosciences,Wuhan 430074,China

Dagang Oilfield Company,China National Petroleum Corporation,Tianjin 300280,China

Hubei Earthquake Agency,Wuhan 430071,China

Yichang Earthquake Monitoring Center Station,Yichang 443100,China

College of Marine Geosciences,Ocean University of China,Qingdao 266000,China

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基金：

National Natural Science Foundation of ChinaPetroChina Dagang Oilfield Company

项目编号：

42130309DGTY-2018-JS-408

出版年：

2024

DOI：

10.1007/s12583-022-1781-3

地球科学学刊(英文版)

中国地质大学

地球科学学刊(英文版)

CSTPCD

影响因子：0.724

ISSN：1674-487X

年,卷(期)：2024.35(5)