Origin and migration pathway of biodegraded oils pooled in multiple-reservoirs of the Chepaizi Uplift, Junggar Basin, NW China: Insights from geochemical characterization and chemometrics methods

Shi, Benwei; Chang, Xiangchun; Xu, Youde; Wang, Yongrui; Mao, Lixin; Wang, Yue

doi:10.1016/j.marpetgeo.2020.104655

Cited by 18 publications

(42 citation statements)

References 66 publications

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“…Previous investigations confirmed that most of the other potential source intervals have not reached the threshold of hydrocarbon generation for their low thermal matur-ities. [1][2][3][4]8,9 Many literature studies have also shown that the Permian in the Shawan Sag, the Jurassic in the Sikeshu Sag, and the Carboniferous in the Chepaizi Uplift are the most potential hydrocarbon contributors at present. 1,2,4,9,20,24,25 In addition, we have supplemented the pyrolysis experiment of source rocks and supported that the source rocks of the above strata are also the main source rocks.…”

Section: Stratigraphic Features and Potential Sourcementioning

confidence: 99%

“…They have the same properties as pregnane and homopregnane and exhibit selective biodegradation with increasing carbon numbers. 4,8,10,17,30 composition of organic matter. 4,34 Therefore, δ 13 C has special significance in oil−source correlation.…”

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

“…4,8,10,17,30 composition of organic matter. 4,34 Therefore, δ 13 C has special significance in oil−source correlation. In addition, due to the influence of maturity, the difference in the δ 13 C value of crude oil from the same source rock is usually not more than 1‰, while the difference in the δ 13 C value of crude oil from different source rocks is usually 2∼3‰.…”

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

“…9,34 As shown in Figure It is well known that the similar maturity of crude oil and source rock is a prerequisite for oil−source correlation. 4,10,20,35 C 27 TAS 20S/(20S + 20R) was derived based on the calculation of the relative content of long-chain TASs proposed by Zhang et al 36 As shown in Figure 8b, three families of crude oils have relatively high C 27 TAS 20S/(20S + 20R) and C 28 TAS 20S/(20S + 20R) ratios, indicating that crude oils should be the product from the maturity stage of the source rock. The maturity of most crude oil samples of family A1 is the closest to that of Permian source rocks, indicating that they may have a potential affinity.…”

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

“…This view has also been verified and supported in some literature. 4,13,[15][16][17][18]20,30,31,39 Hence, correcting relevant terpane characteristics can increase the effectiveness of oil−source correlation. The original TT and C 24 -tetracyclic terpene contents can be reflected if the increase is added to the existing amount.…”

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

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Origin of Mesozoic Biodegraded Crude Oils from the Eastern Chepaizi Uplift (Junggar Basin) Constrained by the Biomarker Recovery Method

Wang

Chang

et al. 2023

Energy Fuels

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The Mesozoic (Jurassic and Cretaceous) sandstone reservoirs in the eastern Chepaizi Uplift of the Junggar Basin (NW China) have become hot targets in recent years for their substantial amounts of oils discovered. However, the oil origin has been a controversial issue due to biodegradation. In this study, hierarchical cluster analysis and principal component analysis show that the Mesozoic crude oils can be divided into three oil families (A1, A2, and A3). Meanwhile, the biodegradation level of the three oil families (PM 6 to 9+) was evaluated based on the PM scale and the parameter-stripping method of strongly resistant parameters. Allowing for this extremely high biodegradation case, this study adopted a biomarker recovery method to recover the original appearances of the three oil families. Here, eight parameters related to hopane (H), tricyclic terpane (TT), and C24-tetracyclic terpane (C24 Tet) were recovered, the dispersion of eight parameter sets is significantly reduced, and the geochemical characteristics are more obvious, especially for TT. Thus, this reliability and robustness, as well as the similarity between the source rock and the biodegraded crude oils, encourage us to perform oil–source correlation. The oil–source correlation revealed that family A1 was derived from the Permian source rocks in the Shawan Sag, family A2 was mainly derived from the Permian source rocks in the Shawan Sag and mixed with a small amount of oils generated by the Jurassic source rocks in the Sikeshu Sag and the Carboniferous source rocks in the Chepaizi Uplift, and family A3 mainly originated from the Permian source rocks in the Shawan Sag mixed with a small amount of oil produced by the Carboniferous source rocks in the Chepaizi Uplift. This conclusion is also further supported by effective biomarker parameters and a stable carbon isotope (δ13C), discriminant analysis, hydrocarbon migration, and restored paleogeomorphology. The parameter recovery is evidenced as one of the most useful methods and showed higher resolution than the conventional oil–source correlation to identify the origins of biodegraded oils.

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Section: Stratigraphic Features and Potential Sourcementioning

confidence: 99%

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

Section: Stages 3 and 4 Peters And Moldowanmentioning

confidence: 99%

See 3 more Smart Citations

Origin of Mesozoic Biodegraded Crude Oils from the Eastern Chepaizi Uplift (Junggar Basin) Constrained by the Biomarker Recovery Method

Wang

Chang

et al. 2023

Energy Fuels

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Apoptotic Janus-faced mycotoxins against thoracal and breast metastases

Bánfalvi

2023

Apoptosis

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Abdominal organs (liver, kidney, spleen) are frequent targets of cancer cell invasion but their primary tumours are less known for their metastatic potential to other organs e.g. to the breast. Despite the known connection of the pathogenesis from breast cancer to liver metastasis, the study of the spread in the opposite direction has been neglected. The notion that breast cancer could be a metastasis besides being a primary tumour is based on rodents’ tumour models upon implantation of tumour cells under the capsule of the kidney or under the Glisson’s capsule of the liver of rats and mice. Tumour cells develop into a primary tumour at the site of subcutaneous implantation. The metastatic process starts with peripheral disruptions of blood vessels near the surface of primary tumours. Tumour cells released into the abdomen cross the apertures of the diaphragm, enter the thoracal lymph nodes and accumulate in parathymic lymph nodes. Abdominal colloidal carbon particles injected into the abdomen faithfully mimicked the migration of tumour cells and deposited in parathymic lymph nodes (PTNs). An explanation is provided why the connection between abdominal tumours and mammary tumours escaped attention, notably, parathymic lymph nodes in humans were referred to as internal mammary or parasternal lymph nodes. The apoptotic effect of Janus-faced cytotoxins is suggested to provide a new approach against the spread of abdominal primary tumours, and metastatic development.

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Geochemical characteristics, genetic types, and controlling factors of natural gas in Jiyang Depression, Bohai Bay Basin (eastern China)

Chang

Zhuang

et al. 2022

Front. Earth Sci.

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Origin and migration pathway of biodegraded oils pooled in multiple-reservoirs of the Chepaizi Uplift, Junggar Basin, NW China: Insights from geochemical characterization and chemometrics methods

Cited by 18 publications

References 66 publications

Origin of Mesozoic Biodegraded Crude Oils from the Eastern Chepaizi Uplift (Junggar Basin) Constrained by the Biomarker Recovery Method

Origin of Mesozoic Biodegraded Crude Oils from the Eastern Chepaizi Uplift (Junggar Basin) Constrained by the Biomarker Recovery Method

Apoptotic Janus-faced mycotoxins against thoracal and breast metastases

Geochemical characteristics, genetic types, and controlling factors of natural gas in Jiyang Depression, Bohai Bay Basin (eastern China)

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