Ruthenium-ion-catalyzed oxidation of asphaltenes and oil-source correlation of heavy oils from the Lunnan and Tahe oilfields in the Tarim Basin, NW China

Ma, Aiyuan; Zhang, Shuichang; Zhang, Dajiang; Jin, Zhijun; Ma, Xiaojuan; Chen, Qingtang

doi:10.1007/bf02869686

Cited by 11 publications

(8 citation statements)

References 13 publications

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“…Zhao et al (1997), He et al (2002), Sun et al (2003), Wang et al (2003) suggested that the main hydrocarbon source rocks are in the Lower-Middle Cambrian, while Zhang et al (2000Zhang et al ( , 2005 considered that Middle-Upper Ordovician source rocks are also important, a similar conclusion was drawn by Hanson et al (2000). We and other authors believe that mixing and multiple charge episodes have complicated the results of these oil source rock correlation studies (Peng et al, 2002;Wang et al, 2003;Se et al, 2007;Ma et al, 2005;Cai et al, 2009;Li et al, 2009). Thus, available oil-source rock correlation results have shown that petroleum may be derived mainly from the Lower-Middle Cambrian and the Middle-Upper Ordovician marine strata (Table 1).…”

Section: Accumulation Of Marine Oil and Gas In The Tarim Cratonic Basinmentioning

confidence: 88%

Evolution and Movement of Source Kitchens and Their Control of Oil and Gas in the Tarim Cratonic Basin, China

Pang

Qiu-hua

Guan

et al. 2012

Energy Exploration & Exploitation

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The cratonic region of the Tarim Basin contains two main Lower Paleozoic source rocks-the Middle-Upper Ordovician and Lower-Middle Cambrian. However, few research focus on the relation between the evolution of hydrocarbon kitchens and its role in controlling oil and gas. Based on previous research results, this paper applies geochemical parameters of rock pyrolysis, hydrocarbon expulsion threshold theory and hydrocarbon-generated potential methods to identify the effectiveness of source rocks from the Lower Paleozoic while quantitatively calculating the hydrocarbon expulsion intensities and amounts for the two sets of source rocks. The above result is used to analysis the distribution of the effective hydrocarbon kitchen in each primary history stage and the controls on oil and gas. This study shows multiple phases of oil and gas generation and expulsion from the Cambrian-Ordovician source rocks with four oil-generating peaks with large-scale oil migration and accumulation. According to the changes in hydrocarbon expulsion intensity within different stages, we can elucidate the evolution of the source kitchens, because the hydrocarbon kitchens from the two sets of source rocks migrated in time and space, and there are multiple hydrocarbon expulsion centers. Based on the concept of the oil/gas threshold distribution model, the relation between the quantitative characterization of the hydrocarbon kitchen controlling function, and quantitative prediction of reservoir formation probability is studied, and the result shows that oil and gas reservoirs are located in more than 50% probability of controlling area. However, different periods and different layers of stacked hydrocarbon kitchen is complex and causing the main mixing of oil and gas. All these hydrocarbon expulsion centers had control over the distribution of oil and gas in the basin. From a macro and quantitative point of view, this discovery will provide certain guide for oil and gas exploration.

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Section: Accumulation Of Marine Oil and Gas In The Tarim Cratonic Basinmentioning

confidence: 88%

Evolution and Movement of Source Kitchens and Their Control of Oil and Gas in the Tarim Cratonic Basin, China

Pang

Qiu-hua

Guan

et al. 2012

Energy Exploration & Exploitation

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“…Though controversies on the source of marine oil lie in whether the major source rock could be in the Middle-Lower Cambrian [4,27] or the Middle-Lower Ordovician [1, [13][14][15][16][17][18][19][20] in the Lunnan area [35] , yet there are common views on biomarker characteristics of the Cambrian and Ordovician source rocks. The Cambrian source rock is characterized by high content of tricyclic terpane, C 28 -sterane and gammacerane, which is opposite to Ordovician source rock.…”

Section: Crude Oilmentioning

confidence: 99%

Accumulation process and model for the Ordovician buried hill reservoir in the western Lunnan area, the Tarim Basin

et al. 2007

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The Ordovician buried hill reservoir in the western Lunnan area, a type of dissolved fracture and cavernous reservoir, is mainly composed of heavy oil. The oil is the mixture sourcing from the Middle-Lower Cambrian and Middle-Lower Ordovician, with three stages of pool forming process: (1) the destruction and parallel migration/accumulation during the late Caledonian to early Hercynian; (2) the oil and gas accumulation during the late Hercynian characterized by adjustment upward along faults and parallel migration/accumulation; (3) the formation of heavy oil during the latest Hercynian. The Ordovician buried hill reservoir is affected by the diffusion of light oil and gas but had no hydrocarbon charging during the late Yanshan period to Himalayan period, but in this period, formed the association of heavy oil and dissolved gas cracked from crude oil with dry coefficient of 0.91-0.96. The study on accumulation process of the Ordovician buried hill reservoir has important implications for the exploration potential of early oil and gas accumulation in the cratonic area of the Tarim Basin.

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“…Ruthenium ion-catalyzed oxidation (RICO) is a highly selective chemical degradation approach, and it has been commonly used for recognition of the chemical structures of coals, − kerogens, and petroleum. − During RICO, unsubstituted aromatic carbon can be selectively oxidized to CO 2 without altering the structural integrity of aliphatic units . The selectivity of RICO can help us to estimate the side chain distribution of the alkyl groups that are attached to the aromatic carbons and the alkyl bridge bond connecting two aromatic carbons in organic substances.…”

Section: Introductionmentioning

confidence: 99%

Polycyclic Aromatics Observed in Enzymatic Lignin by Spectral Characterization and Ruthenium Ion-Catalyzed Oxidation

Wang

Hou

et al. 2021

J. Agric. Food Chem.

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It is generally considered that lignin is a three-dimensional amorphous polymer consisting of methoxylated phenylpropane structures. However, high yields of monomer structural units of lignin cannot be obtained through various ways, which inspired us to gain insights into the structures of lignin. Herein, enzymatic lignin (EL) was directly characterized by a solid-state 13C nuclear magnetic resonance spectrometer and Fourier transform infrared spectrometer and then subjected to ruthenium ion-catalyzed oxidation. According to the spectral characterization, it can be inferred that multi-ring aromatic clusters exist in EL because of the aromatic bridgehead carbon ratio of 0.136. Based on the results of ruthenium ion-catalyzed oxidation of the EL, it can be deduced that (1) double- and triple-aromatic ring clusters exist in the EL besides the traditional phenylpropane single-aromatic ring clusters, and (2) some aromatic rings with long-alkyl chain substituents exist in the EL, which is quite different from the traditional cognition of lignin. This investigation provides a new insight into the structure of EL.

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Ruthenium-ion-catalyzed oxidation of asphaltenes and oil-source correlation of heavy oils from the Lunnan and Tahe oilfields in the Tarim Basin, NW China

Cited by 11 publications

References 13 publications

Evolution and Movement of Source Kitchens and Their Control of Oil and Gas in the Tarim Cratonic Basin, China

Evolution and Movement of Source Kitchens and Their Control of Oil and Gas in the Tarim Cratonic Basin, China

Accumulation process and model for the Ordovician buried hill reservoir in the western Lunnan area, the Tarim Basin

Polycyclic Aromatics Observed in Enzymatic Lignin by Spectral Characterization and Ruthenium Ion-Catalyzed Oxidation

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