The Shahejie Formation in the Dongpu Depression, Bohai Bay …
网页2022年3月5日 · Since the Shahejie Formation developed within different sub-basins of the Bohai Bay Basin (Wu et al., 2018), a more detailed study on the geochemical characteristics of the rocks sampled in the Dongpu Depression may provide a more detailed understanding of the paleo-environment in terms of depositional conditions.
Evaluating the lacustrine Shahejie Formation source rock potential …
网页2023年8月1日 · The Shahejie Formation is the predominant source rock within the Bohai Bay Basin as it has the highest average TOC (Fig. 6) and corresponding hydrogen indexes (HI). Original HI may locally approach 1000 mg/g and have an average TOC of 2.43 wt.%.
Microscopic pore structure and connectivity of lacustrine shale of …
网页2023年7月1日 · The continental shales of the Shahejie Formation are characterized by laminated and organic-rich beds deposited under low-energy environment and mainly with presence of mesopores and micropores good pore connectivity, and with remarkable internal heterogeneities (Li et al., 2014; Su et al., 2018a, Su et al., 2018b; Lawal and Hassan, 2023; Xu …
Quantitative reconstruction of the palaeoclimate of the Shahejie ...
网页2021年12月6日 · This paper uses pollen climate analysis and coexistence analysis to systematically analyze the climatic evolution of the Shahejie Formation in the Chezhen Depression, Bohai Bay Basin, eastern China and discusses the relationship between palaeoclimatic evolution and lake level rise.
Sedimentary environment of Shahejie Formation in Chezhen …
网页2021年10月15日 · The strata of Shahejie Formation are mainly composed of dark lacustrine sand and mudstone with a small amount of carbonate rock and bioclastic limestone. It can be subdivided into lower and upper two subsegments, and Es3 and Es2 can be subdivided into lower, middle, and upper three subsegments (Lv 2003 ; Hl 2019 ; Zhang 2005 ).
Anatomy of a lacustrine stratigraphic sequence within the fourth …
网页2019年2月15日 · This study provides a lake expansion–contraction scheme to divide a lacustrine stratigraphic sequence into systems tracts and highlights the feasibility of applying this approach in studying sequence stratigraphy along the steep margin of a lacustrine rift basin. The results also provide understandings for the development, distribution, and ...
Sedimentology of the deltaic Paleogene Shahejie Formation in …
网页2020年6月21日 · Abstract. The Liaodong Bay area in north-east China has abundant hydrocarbon resources. The study area (referred to as D-1) is located in the south-east portion of the Liaodong Graben, a tectonic unit of Liaodong Bay, where the focus for exploration is on sandstone units in the Palaeogene Shahejie Formation.
Genesis and Distribution of Pyrite in the Lacustrine Shale: Evidence ...
网页2021年12月23日 · Lacustrine carbonates are widely distributed in the third member of the Eocene Shahejie Formation (EsL3) of the Shulu sag and other rift basins in the Bohai Bay Basin, which can act as reservoirs for hydrocarbon and provide insights into paleoenvironment.
Quantitative reconstruction of the palaeoclimate of the Shahejie ...
网页2021年12月6日 · This paper uses pollen climate analysis and coexistence analysis to systematically analyze the climatic evolution of the Shahejie Formation in the Chezhen Depression, Bohai Bay Basin, eastern ...
Occurrence states of the shale oil in the Shahejie Formation ...
网页2024年5月23日 · To elucidate the distinct occurrence states of shale oil in the Paleogene Shahejie Formation within the Huanghekou Depression, a quantitative investigation was conducted employing multi-isothermal stage pyrolysis analysis technology. The results show that the free oil content and adsorbed oil content are the highest in the E 2 s 3. With ...