Geochemistry and origins of natural gas in the Hong-Che fault zone of the Junggar Basin, NW China

Yong, Li; Lu, Jungang; Liu, Xiangjun; Wang, Jian; Ma, Wanyun; He, Xin; Mou, Feisheng; Li, Xinme

doi:10.1016/j.petrol.2022.110501

Cited by 14 publications

(20 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The oil reservoir forming conditions are favorable for the Mesozoic interval. 5,23,24 The tectonic evolution of the Chepaizi Uplift can be roughly divided into three stages (Figure 2). 4,23,24 The first stage, the continuous orogenic uplift stage, occurred in the Permian− Jurassic.…”

Section: Geographical Location and Regional Tectonicmentioning

confidence: 99%

“…Also, it is adjacent to the Hongche Fault Zone in the east, the Zhonggai Uplift and the Dabasong Uplift in the NE, and the Zhayier Mountains in the NW (Figure b,c). The oil reservoir forming conditions are favorable for the Mesozoic interval. ,, …”

Section: Geological Settingsmentioning

confidence: 99%

“…In recent years, CNPC and Sinopec have successively discovered oil reservoirs with reserves of hundreds of millions of tons in the Carboniferous and Neogene strata in the Chepaizi Uplift in the NW margin of the Junggar Basin. − The discovered crude oil reserves of the Mesozoic reservoirs in the Chepaizi oilfield near the Hongche Fault Zone have reached 120 million tons, indicating an excellent exploration potential. , Also, oil flows and oil shows found in the Mesozoic intervals of the eastern Chepaizi Uplift indicated a great oil and gas exploration prospect. , However, the crude oils in the Mesozoic reservoirs discovered in the eastern Chepaizi Uplift universally are heavy oils, which showed variation in the physical properties and chemical compositions, and experienced severe to extreme biodegradation (PM ≥ 7). ,,, For the oil–source correlation, biomarker parameters [e.g., tricyclic terpanes (TT) and tetracyclic terpanes (Tet)] that are resistant to microbial alteration are commonly used. , Indeed, from the severe to extreme level, variations in the molecular composition of monomer compounds are not strictly consistent with their stepwise fashion in established schemes. ,, Hence, the commonly used indicators for oil–source correlation cannot effectively define oil sources in this case. Thus, there is an urgent need to find a new method that is suitable for the case of severe to extreme biodegradation.…”

Section: Introductionmentioning

confidence: 99%

“…1−4 The discovered crude oil reserves of the Mesozoic reservoirs in the Chepaizi oilfield near the Hongche Fault Zone have reached 120 million tons, indicating an excellent exploration potential. 5,6 Also, oil flows and oil shows found in the Mesozoic intervals of the eastern Chepaizi Uplift indicated a great oil and gas exploration prospect. 6,7 However, the crude oils in the Mesozoic reservoirs discovered in the eastern Chepaizi Uplift universally are heavy oils, which showed variation in the physical properties and chemical compositions, and experienced severe to extreme biodegradation (PM ≥ 7).…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Geographical Location and Regional Tectonicmentioning

confidence: 99%

Section: Geological Settingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 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

View full text Add to dashboard Cite

show abstract

“…The Junggar Basin is a large superposition basin in northwestern China, with a total area of approximately 1.3 × 10 5 km 2 (Cao et al, 2010;Gong et al, 2019;Shi et al, 2020;Li et al, 2022) (Figure 1A). The Hongche Fault Zone is on the west side of the Junggar Basin at the intersection of the western uplift and central depression of the Junggar Basin.…”

Section: Geological Settingmentioning

confidence: 99%

Geochemical characteristics and origin of crude oil from Carboniferous volcanic rocks in the Hongche Fault Zone of the Junggar Basin of China

Chen

Wang

et al. 2022

Front. Earth Sci.

Self Cite

View full text Add to dashboard Cite

In recent years, significant advances have been made in the exploration of Carboniferous volcanic reservoirs in the Hongche Fault Zone of the Junggar Basin of China, showing good prospects for further exploration. However, the large variation in the physical properties of crude oil and the complex distribution rule inhibit the one-step exploration. In this study, the PM scale of the biodegradation of crude oil and source of crude oil were studied using experimental methods that target the properties, bulk properties and biomarker compounds of crude oil. The exploration potential of crude oil in this area was analysed, and an accumulation model of crude oil was established. Based on the differences in biomarker compounds and the degree of biodegradation, crude oils were divided into four groups and seven subgroups. Additionally, the analysis of the biomarker compounds of crude oil combined with the hydrocarbon-generation history of source rocks showed that there were at least two periods of oil charging in this area. The first period was the late Triassic, with crude oil derived from the P1f source rock. Owing to the strong tectonic activity during the late Indosinian movement, the oil reservoirs were distributed in the footwall of the fault zone, and the oil in the reservoir exhibited different degrees of biodegradation, forming crude oils of subgroup I1, II and III1. The second period was Cretaceous, during which the P1f source rock was in the natural gas generation stage, and the P2w source rock was at a mature stage. A small part of the crude oil formed by the P2w source rock migrated to the Carboniferous reservoirs and mixed with the crude oil formed by the earlier P1f source rock, resulting in crude oils of subgroups I2, III2, and IV2. The crude oil in the studied area originated from the source rocks in the sag during the peak of oil generation. As tectonic activity approached stability in the latter period, it is speculated that there may be well-preserved primary oil and gas reservoirs in the footwall and slope areas of the fault, making these potential exploration sites.

show abstract

Hydrocarbon Source and Relationship between Hydrocarbon Charging Process and Reservoir Tight Period of the Denglouku Formation Tight Sandstone Gas Reservoirs in the Xujiaweizi Fault Depression, Songliao Basin

Miao,

Jiang,

et al. 2024

Nat Resour Res

View full text Add to dashboard Cite

Geochemistry and origins of natural gas in the Hong-Che fault zone of the Junggar Basin, NW China

Cited by 14 publications

References 49 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

Geochemical characteristics and origin of crude oil from Carboniferous volcanic rocks in the Hongche Fault Zone of the Junggar Basin of China

Hydrocarbon Source and Relationship between Hydrocarbon Charging Process and Reservoir Tight Period of the Denglouku Formation Tight Sandstone Gas Reservoirs in the Xujiaweizi Fault Depression, Songliao Basin

Contact Info

Product

Resources

About