Journal ArticleDOI
Geochemistry of Palaeozoic marine petroleum from the Tarim Basin, NW China: Part 3. Thermal cracking of liquid hydrocarbons and gas washing as the major mechanisms for deep gas condensate accumulations
Shuichang Zhang,Shuichang Zhang,Jin Su,Jin Su,Xiaomei Wang,Xiaomei Wang,Guangyou Zhu,Guangyou Zhu,Haijun Yang,Keyu Liu,Keyu Liu,Zhenxi Li,Zhenxi Li +12 more
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In this article, the authors analyzed three major hydrocarbon bearing intervals in the Lunnan lower bulge for their stable carbon isotopes and molecular biomarkers and concluded that the recently discovered deep (6500m) eastern Lungu giant Ordovician gas condensate pool with an estimated reserve of 723 million bbl oil equivalent is a secondary hydrocarbon accumulation derived from the mixing of an early formed oil and a late formed gas.About:
This article is published in Organic Geochemistry.The article was published on 2011-12-01. It has received 108 citations till now. The article focuses on the topics: Petroleum & Natural gas field.read more
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Palaeozoic oil–source correlation in the Tarim Basin, NW China: A review
TL;DR: In this paper, the authors reviewed the current knowledge of the potential source rock distribution, end-member selection, oil-source correlation and impacts of secondary alteration processes and concluded that the main source rocks most likely reside in the O 2 −O 1 succession rather than O 2 -O 3.
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Discovery of the lower Cambrian high-quality source rocks and deep oil and gas exploration potential in the Tarim Basin, China
TL;DR: In this paper, a set of high-quality source rocks were developed within the lower Cambrian Yuertusi Formation (J1y), at the base of the lower-Cambrian dolomites.
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The occurrence of ultra-deep heavy oils in the Tabei Uplift of the Tarim Basin, NW China
Guangyou Zhu,Shuichang Zhang,Jin Su,Haiping Huang,Haiping Huang,Haijun Yang,Lijing Gu,Bin Zhang,Yongfeng Zhu +8 more
TL;DR: In this paper, deeply buried heavy oils from the Tabei Uplift of the Tarim Basin have been investigated for their source origin, charge and accumulation time, biodegradation, mixing and thermal cracking using biomarkers, carbon isotopic compositions of individual alkanes, fluid inclusion homogenization temperatures and authigenic illite K-Ar radiometric ages.
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Alteration and multi-stage accumulation of oil and gas in the Ordovician of the Tabei Uplift, Tarim Basin, NW China: Implications for genetic origin of the diverse hydrocarbons
TL;DR: In the Tabei Uplift of the Tarim Basin, there were three main periods of hydrocarbon accumulation in the late Caledonian stage, the late Hercynian stage and the late Himalayan stage as mentioned in this paper.
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Geochemistry of Paleozoic marine oils from the Tarim Basin, NW China. Part 4: Paleobiodegradation and oil charge mixing
Shuichang Zhang,Shuichang Zhang,Haiping Huang,Haiping Huang,Jin Su,Jin Su,Guangyou Zhu,Guangyou Zhu,Xiaomei Wang,Xiaomei Wang,Steve Larter +10 more
TL;DR: In this article, the influence of biodegradation and mixing on molecular compositions was analyzed by GC-FID and GC-MS to reveal that the ultimate compositions and physical properties of the oil are influenced strongly by mixing with late oil charge.
References
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Petroleum Geochemistry and Geology
TL;DR: The development of petroleum geochemistry and geology carbon and origin of life petroleum and its products how oil forms -natural hydrocarbons how oil form -generated hydrocarbon models petroleum generation the origin of natural gas migration and accumulation abnormal pressures the source rock coals, shales, and other terrestrial source rocks petroleum in the reservoir seeps and surface prospecting a geochemical program for petroleum exploration crude oil correlation prospect evaluation as discussed by the authors.
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Applications of steranes, terpanes and monoaromatics to the maturation, migration and source of crude oils
TL;DR: In this paper, the absolute concentration of steranes, terpanes, and paraffins (n + iso) in combination with internal ratios of individual biomarkers such as primary/secondary terpane, 17α(H)-trisnorhopane/18α( H)-triscope II (both maturation specific), 5β/5α-steranes, 5β-sterane/17α (H)-hopanes and rearranged steranes/5β-teranes (all migration oriented), 5α/ 5α-stanes and
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Classification, structure, genesis and practical importance of natural solid oil bitumen (“migrabitumen”)
TL;DR: In this paper, the authors defined the migrabitumens as secondary macerals of coals and are amorphous; their shape is adapted to the form of cavities they occupy.
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Experimental simulation in a confined system and kinetic modelling of kerogen and oil cracking
TL;DR: In this article, the authors experimentally simulate both kerogen and oil cracking in a closed pyrolysis system and then, to model the kinetic scheme, they show that a unique kinetic scheme can be used for secondary cracking reactions either when oil is pyrolysed alone or when bitumen is first generated during kerogen pyrolynsis.
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Diamondoid hydrocarbons as indicators of natural oil cracking
Jeremy E. P. Dahl,J. M. Moldowan,Kenneth E. Peters,G. E. Claypool,M. A. Rooney,G. E. Michael,M. R. Mello,Math E.L. Kohnen +7 more
TL;DR: In this article, the relative abundance of diamondoids, a class of petroleum compounds whose unique thermal stability leads to their progressive concentration during cracking, was used to identify the occurrence and estimate the extent of oil destruction and the oil deadline in a particular basin.