Data Report: Molecular and Isotopic Compositions of the Extracted Gas from China’s First Offshore Natural Gas Hydrate Production Test in South China Sea

Jianliang Ye, Xuwen Qin, Haijun Qiu, Wenwei Xie, Hongfeng Lu, Cheng Lu, Jianhou Zhou, Jiyong Liu, Tianbang Yang, Jun Cao and Rina Sa
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Jianliang Ye: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Xuwen Qin: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Haijun Qiu: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Wenwei Xie: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Hongfeng Lu: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Cheng Lu: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Jianhou Zhou: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Jiyong Liu: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Tianbang Yang: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Jun Cao: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China
Rina Sa: Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510760, China

Energies, 2018, vol. 11, issue 10, 1-7

Abstract: Three hundred gas samples recovered from SHSC-4 during China’s first gas hydrate production test in the South China Sea were examined for gas component and isotopic composition. According to the gas chromatography analysis, all the gas samples from SHSC-4 are predominated by CH 4 , with minor N 2 + O 2 , as well as trace amounts of CO 2 , C 2 H 6 , and C 3 H 8 . No H 2 S was detected. The molecular and isotopic data of the gas samples fall into the region of “mixed origin” on the plot of C 1 /(C 2 + C 3 ) − δ 13 C 1 , which is close to the microbial origin. The discrimination diagram of δ 13 C 1 − δD CH4 shows that the methane in all of the samples is of microbial origin, and is derived from the CO 2 reduction.

Keywords: isotopic composition; methane; gas hydrate; South China Sea (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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