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Basin modeling in the initial stage of exploration: a case study from the North Subbasin of the South Yellow Sea Basin
Pang Yumao1,2,3,4; Zhang Xunhua2,4,5; Guo Xingwei2,4; Xiao Guolin2,4; Han Zuozhen1
2017-09-01
发表期刊ACTA OCEANOLOGICA SINICA
卷号36期号:9页码:65-78
文章类型Article
摘要Basin modeling has become an important tool for analyzing sedimentary basins. The North Subbasin of the South Yellow Sea Basin is filled with thick Meso-Cenozoic terrigenous deposits during the rift evolution stage. The accumulation of data and achievements of geological investigations in recent years have provided the preconditions for basin modeling. The necessary parameters and geological elements for simulations are collated and summarized. Modeling of tectono-thermal evolution is performed and the related trend in heat flow is reconstructed and calibrated. The heat flow value commences from an average level of 61 mW/m(2) during Middle-Late Jurassic, rises to about 80 mW/m(2) from circa 145 Ma to circa 74 Ma, and then undergoes a gradual decline to 65 mW/m(2) until the end of Oligocene.Three evolutionary phases, namely, the initial rifting phase, syn-rifting phase, and post-rifting phase, have been identified. The modeling results show that the North Subbasin generally enters into a stage of strong rifting during Cretaceous and undergoes rapid subsidence until the Late Cretaceous, then follows by a stage of moderate rifting during the Paleogene. The input and general workflow involved in 3-D modeling are introduced. Reconstruction of the petroleum system in the North Subbasin reveals that the threshold depth of hydrocarbon generation is located near the top of the Paleogene Funing formation, and the underlying Jurassic and Cretaceous source rocks have reached or exceeded peak oil generation and have almost completed the generation and expulsion of hydrocarbons. The main generation and expulsion in the Jurassic source rocks take place during the syn-rifting and post-rifting phases, whereas the peak generation and expulsion in the Cretaceous and Paleogene source rocks take place during the post-rifting phase. Although the study area is still a relatively less explored sedimentary basin, the results of modeling can provide valuable information for exploration. A preliminary discussion of the main uncertainty factors is also presented.
关键词Basin Modeling Tectono-thermal Evolution History Petroleum System South Yellow Sea Basin
DOI10.1007/s13131-017-1112-1
收录类别SCI
语种英语
WOS记录号WOS:000408975800009
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143154
专题海洋地质与环境重点实验室
作者单位1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
4.Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
5.China Geol Survey, Nanjing Ctr, Nanjing 210016, Peoples R China
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Pang Yumao,Zhang Xunhua,Guo Xingwei,et al. Basin modeling in the initial stage of exploration: a case study from the North Subbasin of the South Yellow Sea Basin[J]. ACTA OCEANOLOGICA SINICA,2017,36(9):65-78.
APA Pang Yumao,Zhang Xunhua,Guo Xingwei,Xiao Guolin,&Han Zuozhen.(2017).Basin modeling in the initial stage of exploration: a case study from the North Subbasin of the South Yellow Sea Basin.ACTA OCEANOLOGICA SINICA,36(9),65-78.
MLA Pang Yumao,et al."Basin modeling in the initial stage of exploration: a case study from the North Subbasin of the South Yellow Sea Basin".ACTA OCEANOLOGICA SINICA 36.9(2017):65-78.
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