收稿日期: 2004-06-24
修回日期: 2004-08-13
网络出版日期: 2004-12-20
ON THE HYDROCARBON GENERATION CONDITIONS OF THE LARGE AND MIDDLE SCALE GAS FIELDS IN EASTERN PART OF SICHUAN BASIN
Received date: 2004-06-24
Revised date: 2004-08-13
Online published: 2004-12-20
王兰生,李宗银, 沈平, 陈盛吉,张鉴,谢邦华 . 四川盆地东部大中型气藏成烃条件分析[J]. 天然气地球科学, 2004 , 15(6) : 567 -571 . DOI: 10.11764/j.issn.1672-1926.2004.06.567
The hydrocarbon generation conditions of Carboniferous and low Triassic large and middle scale gas fields in eastern part of Sichuan basin have been studied adopting the petroleum system and the gas reservoir geochemical method in this paper. The two suits of dull muddy rocks in Low Silurian and upper Permian is respectively the hydrocarbon source rocks for the Carboniferous and low Triassic gas fields in eastern part of Sichuan basin.Here, the gas concentration is mainly controlled by Kaijiang Paleo-uplift formed in Indosinian-Yanshan periods. The traps formed in Himalaya period may adjust the reservoir forming and control the present distribution of gas fields.
Key words: Hydrocarbon generation; Natural gas; Geochemistry; Sichuan basin.
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