Genesis of marine carbonate natural gas in the northeastern Sichuan Basin, China

被引：0

作者：

Zhang Qu ^{[1
]}

Tenger ^{[1
]}

Meng Qingqiang ^{[2
,3
,4
]}

Qin Jianzhong ^{[1
]}

Jiang Qigui ^{[1
]}

Zheng Lunju ^{[1
]}

机构：

[1] Petr Explorat & Prod Res Inst, Inst Petr Geol, Wuxi 214151, Jiangsu, Peoples R China

[2] State Key Lab Petr Resource & Prospecting, Beijing 102249, Peoples R China

[3] China Univ Petr, Minist Educ, Key Lab Minister Hydrocarbon Accumulat Mech, Beijing 102249, Peoples R China

[4] China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China

来源：

ACTA GEOLOGICA SINICA-ENGLISH EDITION | 2008年 / 82卷 / 03期

关键词：

Sichuan Basin; natural gas; carbon isotope; acidolysis gas; genesis;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Sichuan Basin is one of the structurally stable and gas-rich basins, being regarded as one of China's important natural gas industry bases. Puguang and Jiannan gas fields, located in the eastern Sichuan Basin are two large fields with gas derived from Permian and Lower Triassic marine carbonate. The genesis of marine carbonate natural gas was examined using carbon isotope composition and hydrocarbon components of natural gas samples from the eastern and western Sichuan Basin, and compared with that of acidolysis gas derived from marine source rock in the eastern Sichuan Basin. It is concluded that the natural gas in the marine carbonate reservoir originated from pyrolysis of the earlier crude oil and light-oil, and then mixed with kerogen pyrolysis gas of the Permian and Lower Silurian source rock.

引用

页码：577 / 584

页数：8

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