Paleocene storm-related event beds in the Gaoyou Sag of the Subei Basin, eastern China: A new interpretation for these deep lacustrine sandstones

Liu, Chao; Jiang, Zaixing; Zhou, Xuewen; Duan, Ye; Lei, Huarui; Wang, Xuying; Quaye, Jonathan Atuquaye

doi:10.1016/j.marpetgeo.2020.104850

Cited by 12 publications

(9 citation statements)

References 55 publications

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“…In the first main rifting period (83− 54.9 Ma), the Paleogene Funing Formation was deposited, including delta, shallow late, and deeper lake facies in the Gaoyou and Jinhu Sags. 28 From bottom to top, the Funing Formation can be divided into four members (E 1 f 1 to E 1 f 4 ). E 1 f 2 is regarded as the primary source rock, consisting of 150 to 300 m thick dark gray mudstones/shales interbedded with marls, limestone, and dolomite.…”

Section: Geological Settingmentioning

confidence: 99%

Key Oil Content Parameter Correction of Shale Oil Resources: A Case Study of the Paleogene Funing Formation, Subei Basin, China

Zhang

Lin

et al. 2022

Energy Fuels

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Estimating shale oil resources is critical in shale oil exploration, and the pyrolysis parameter S 1 is a frequently used parameter to assess the oil amount in shale. However, S 1 loses some light and heavy hydrocarbons due to core storage conditions and experimental technology, resulting in underestimating shale oil resources. In this paper, a set of models were developed to correct the light and heavy hydrocarbon losses for S 1 based on conventional and multistage Rock-Eval experiments on liquefrozen and room-temperature shales collected from the Funing Formation, Subei Basin. Two types of correction models of heavy hydrocarbon loss for liquefrozen and room-temperature shales were determined by comparing the conventional and multistage Rock-Eval experiments, respectively. The light hydrocarbon loss correction model was obtained according to conventional Rock-Eval experiments on liquefrozen and room-temperature shales. Moreover, the estimation models of adsorbed, free, and movable amounts of oil were determined and validated by the oil saturation index (OSI) method. The results show that the total, adsorbed, free, and movable oil contents can be estimated well by these correction models. A case study from the Funing Formation, Subei Basin, indicates that the higher the content of total oil, the higher the amounts of free and movable oil, indicating that shale with more oil also has a more excellent mobile and developable potential. Organic matter is the main adsorbent for shale oil. Shales with TOC greater than 1.5% generally have greater free (movable) oil amounts, which may be the optimal target for shale oil exploration and exploitation. This study provides an innovative approach to correct the key parameters of shale oil resources, and thus, is crucial for the exploration and development of shale oil in the Funing Formation, Subei Basin.

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Section: Geological Settingmentioning

confidence: 99%

Key Oil Content Parameter Correction of Shale Oil Resources: A Case Study of the Paleogene Funing Formation, Subei Basin, China

Zhang

Lin

et al. 2022

Energy Fuels

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“…Location of Subei Basin in China; TR, Tarim Basin; JG, Junggar Basin; SC, Sichuan Basin; OD, Ordos Basin; EL, Erlian Basin; BB, Bohai Bay Basin; SL, Songliao Basin; integrated and modified from Liu et al, 2018, Liu, Yang, et al, 2020, Liu, Lai, et al, 2020 Location and distribution of structural units of Subei Basin; integrated and modified from Zhou et al, 2018; Distribution of structural units in and around Gaoyou Depression and datasets used; integrated and modified from Liu, Chen, et al, 2017Liu, He, et al, 2021, Liu, Jiang, et al, 2021, Liu, Jin, et al, 2021 seismic interpretation showing structural framework, integrated and modified from Zhang et al, 2016 Cretaceous which overlies unconformably on Palaeozoic carbonate sedimentary rocks (Li et al, 2012;Liu, 2009). The Cretaceous is predominantly composed of the Upper Cretaceous (Taizhou Formation, Chishan Formation, and Pukou Formation) and Lower Cretaceous (Gecun Formation) (Figure 2).…”

Section: Geological Settingsmentioning

confidence: 99%

“…(a) Location of Subei Basin in China; TR, Tarim Basin; JG, Junggar Basin; SC, Sichuan Basin; OD, Ordos Basin; EL, Erlian Basin; BB, Bohai Bay Basin; SL, Songliao Basin; integrated and modified from Liu et al, 2018, Liu, Yang, et al, 2020, Liu, Lai, et al, 2020; (b) Location and distribution of structural units of Subei Basin; integrated and modified from Zhou et al, 2018; (c) Distribution of structural units in and around Gaoyou Depression and datasets used; integrated and modified from Liu, Chen, et al, 2017, Liu, Wu, et al, 2017; Liu, He, et al, 2021, Liu, Jiang, et al, 2021, Liu, Jin, et al, 2021; (d) seismic interpretation showing structural framework, integrated and modified from Zhang et al, 2016 …”

Section: Geological Settingsmentioning

confidence: 99%

“…The Palaeogene consists of Funing Formation, Dainan Formation, and Sanduo Formation (Figure 2). Among them, Funing Formation possesses primary source rocks (Li, Zhu, Liu, Zhu, & Li, 2021; Liu et al, 2020; Liu, He, et al, 2021; Liu, Jiang, et al, 2021; Liu, Jin, et al, 2021; Quaye, Jiang, & Zhou, 2018; Zhou, Jiang, & MacEachern, 2020). In contrast, Dainan Formation and Sanduo Formation act as the main reservoirs (Zhang et al, 2016; Zhou et al, 2018).…”

Section: Geological Settingsmentioning

confidence: 99%

“…Actually, there are more than two extremely limiting conditions than that, such as transition conditions between opening and closing in most circumstances. How to evaluate fault seal and how to characterize fault seal have always been a big headache for geologists in petroleum exploration (Li et al, 2018; Liu et al, 2021; Lv, Huang, Fu, & Fu, 2009; Pei et al, 2015; Wang et al, 2021; Williams, Gent, Fellgett, & Gamboa, 2018).…”

Section: Introductionmentioning

confidence: 99%

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The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

2022

Geological Journal

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The quantitative evaluation of fault sealing is conducted based on comprehensive analysis of mechanism and type analysis of fault seal, fault seal evaluation, and case study analysis. The results indicate that the properties of fault sealing are the interaction of fault order, net-to-gross ratio, fault activity, mud distribution on fault walls, fault dip, and buried depth. In addition, there are three types of fault sealing, including juxtaposition seal, fault rock seal, and cementation seal. Furthermore, the opening and closing of faults play an essential role in controlling hydrocarbon migration and accumulation. Finally, the fault sealing plays a controlling role in reservoir preservation.

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Understanding the role of bioturbation in modifying petrophysical properties: a case from well L5 of the third-member Paleocene Funing Formation (E1f3), Gaoyou Sag, Subei Basin, China

et al. 2023

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Paleocene storm-related event beds in the Gaoyou Sag of the Subei Basin, eastern China: A new interpretation for these deep lacustrine sandstones

Cited by 12 publications

References 55 publications

Key Oil Content Parameter Correction of Shale Oil Resources: A Case Study of the Paleogene Funing Formation, Subei Basin, China

Key Oil Content Parameter Correction of Shale Oil Resources: A Case Study of the Paleogene Funing Formation, Subei Basin, China

The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

Understanding the role of bioturbation in modifying petrophysical properties: a case from well L5 of the third-member Paleocene Funing Formation (E1f3), Gaoyou Sag, Subei Basin, China

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