Natural gas genesis and sources in the Zizhou gas field, Ordos Basin, China

被引：59

作者：

Huang, Shipeng ^{[1
]}

Fang, Xiang ^{[1
]}

Liu, Dan ^{[1
]}

Fang, Chenchen ^{[1
]}

Huang, Tongfei ^{[1
]}

机构：

[1] PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China

来源：

INTERNATIONAL JOURNAL OF COAL GEOLOGY | 2015年 / 152卷

基金：

美国国家科学基金会;

关键词：

Carbon and hydrogen isotope values; Light hydrocarbon; Coal-derived gas; Carboniferous-Permian; Zizhou gas field; Ordos Basin; STABLE CARBON; SICHUAN BASIN; TARIM BASIN; HYDROGEN; GENERATION; ENVIRONMENTS; HYDROCARBONS; ISOTOPES; ORIGINS; HISTORY;

D O I：

10.1016/j.coal.2015.10.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The Zizhou gas field is a large, tight sandstone gas field in the Ordos Basin, China. Based on the analysis of the geological background, gas components, light hydrocarbon composition, carbon and hydrogen isotope values of alkane gases, and the geochemical correlation between gases of the Zizhou gas field and analogs from other fields in the basin, we conclude that : (a) most natural gases in the Zizhou gas field are dry with a small content of wet gas; (b) the gases have similar carbon isotopic and light hydrocarbon compositions to the analogs from other fields, as well as much more positive delta C-13 values and high contents of C5-7 i-alkanes and methylcyclohexanes, indicating typical coal-derived gas; (c) carbon isotopic reversal in some gas samples is due to mixing of coal-derived gases of different maturities; (d) the gases are sourced from mature to high-mature Carboniferous Permian coal-measures; and (e) the gas reservoirs represent continuous accumulations. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：132 / 143

页数：12

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