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1. Origin of Adamantanes and Diamantanes in Marine Source Rock

Author:
Xiong, Yongqiang,   et al.   ; Li, Yun; Chen, Yuan; Wang, Xiaotao; Fang, Chenchen; Zhang, Li; Li, Jinhua;     Show all 7 Authors
Source:
Energy & Fuels 2015 v.29 no.12 pp. 8188-8194
ISSN:
1520-5029
Subject:
bitumen; cracking; isomerization; maturity stage; oils; organic matter; shale; thermal stability
Abstract:
... Thermal maturation-related variations in the yields of lower diamondoids (adamantanes and diamantanes) in source rock were investigated by thermal simulation experiments based on a marine shale and kerogens obtained from the shale via isolation and artificial maturation, representing different maturity stages of the oil generation window. The simulations show that lower diamondoids are formed and ...
DOI:
10.1021/acs.energyfuels.5b01993

2. New Improved Delta Carbonate Method Used for Surface Geochemical Exploration for Petroleum

Author:
Xiong, Yongqiang,   et al.   ; Liang, Qianyong; Zhao, Jing; Zhao, Kebin; Zhang, Zongyuan; Li, Yun; Li, Wu; Sun, Changqing;     Show all 8 Authors
Source:
Energy & Fuels 2014 v.28 no.5 pp. 3016-3023
ISSN:
1520-5029
Subject:
basins; carbon; carbon dioxide; gas chromatography; gold; hydrocarbons; mass spectrometry; models; oils; oxidation; petroleum; pyrolysis; seepage; soil; surveys; China
Abstract:
... The delta carbonate (ΔC) method is a common used surface geochemical exploration technique for oil and gas geochemical surveys in China. However, its application effectiveness is unsatisfactory because of the unidentified origins of CO₂ that form ΔC. In this study, a gold tube pyrolysis technique, coupled with gas chromatography (GC) and gas chromatography–isotope ratio mass spectrometry (GC–IRMS) ...
DOI:
10.1021/ef5003155