A pyrolytic study of the speciation and isotopic composition of nitrogen in carboniferous shales of the North German Basin

Jurisch, Anke; Krooß, Bernhard M.

doi:10.1016/j.orggeochem.2008.02.011

Cited by 20 publications

(3 citation statements)

References 8 publications

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“…Indeed, early pyrolytic studies have shown that thermal degradation of nitrogen species in sedimentary rocks plays an important role in N2 accumulation in natural gas reservoirs; specifically, it was found that N2 is mainly generated at the final stage of gas generation after methane generation is practically exhausted Littke et al, 1995;Heim et al, 2012;Jurisch et al, 2012). Importantly, the inorganic, clay-bound nitrogen is liberated prior to organic nitrogen and converted to N2 due to its lower thermal stability during thermal degradation (Jurisch and Krooss, 2008;Jurisch et al, 2012).…”

Section: Metamorphic N2 Flux From Rocks To Gas Reservoir and Surface ...mentioning

confidence: 99%

A potential linkage between excess silicate-bound nitrogen and N2-rich natural gas in sedimentary reservoirs

et al. 2022

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Section: Metamorphic N2 Flux From Rocks To Gas Reservoir and Surface ...mentioning

confidence: 99%

A potential linkage between excess silicate-bound nitrogen and N2-rich natural gas in sedimentary reservoirs

et al. 2022

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“…These gases have been sourced by the kerogen and the ammonium-bearing minerals in the re-heated source rocks of the Mesozoic basement. It is likely that the gases remaining in those source rocks are also rich in nitrogen (Krooss et al, 2005(Krooss et al, , 2006Jurisch et al, 2007;Jurisch and Krooss, 2008).…”

Section: Lower Jurassic Units Of the Mecsek Unitmentioning

confidence: 99%

Source rocks and petroleum systems in the Hungarian part of the Pannonian Basin: The potential for shale gas and shale oil plays

Badics

Vetö²

2012

Marine and Petroleum Geology

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“…Therefore, it is most likely that the nitrogen in the two gas fields is thermogenic. Usually, with the increase of the maturity, the δ 15 N values would turn to be heavier (Zhu et al, 2000;Jurisch and Krooss, 2008). As mentioned above, the thermogenic nitrogen generated at mature stage usually has the δ 15 N values of -10‰ ~ -1‰ (Zhu et al, 1998;Chen et al, 2003).…”

mentioning

confidence: 99%

Characteristics of Gas Compositions in Giant Gas Fields of China

Gong

Huang

et al. 2014

Energy Exploration & Exploitation

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By the end of 2011, altogether 48 giant gas fields with each proven reserves over 300×10 8 m 3 had been discovered in China. After studying on the main molecular compositions (methane, heavy hydrocarbon gases, nitrogen, carbon dioxide and hydrogen sulfide) of 1170 gas samples in these gas fields, it is found that: a). Alkane gases dominate the molecular compositions of the natural gases; the extremely low content of them have a tight relationship with the extremely high content of non-hydrocarbon gases; methane accounts for 60.1% of the alkane gases. b). Carbon dioxide has the average content of 4.09%; carbon dioxide with an extremely high content (>50%) is mainly distributed in Dongfang1-1, Changling and Songnan gas fields; highly concentrated CO 2 in the former one was crustal-derived while that in the latter two was mantle-derived. c). Nitrogen has an average content of 3.56% which is quite low; highly concentrated nitrogen (>20%) is mainly distributed in Hetianhe, Tazhong, Ledong22-1 and Dongfang1-1 gas fields which are organic-originated. d). Hydrogen sulfide has been detected in 12 giant gas fields, with the content of 4.91% in average; the Triassic is the most centralized zone for hydrogen sulfide while the Sichuan Basin has the largest number of sour gas fields and sour gas bearing zones; 7 sour gas fields of high H 2 S content (2% ~ 70%) are found which are resulted from the thermochemical sulfate reduction (TSR).

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A pyrolytic study of the speciation and isotopic composition of nitrogen in carboniferous shales of the North German Basin

Cited by 20 publications

References 8 publications

A potential linkage between excess silicate-bound nitrogen and N2-rich natural gas in sedimentary reservoirs

A potential linkage between excess silicate-bound nitrogen and N2-rich natural gas in sedimentary reservoirs

Source rocks and petroleum systems in the Hungarian part of the Pannonian Basin: The potential for shale gas and shale oil plays

Characteristics of Gas Compositions in Giant Gas Fields of China

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