天然气地球化学

川中-川南过渡带西部嘉二段天然气成因与来源

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  • [1]西南石油大学,四川成都610500 [2]中国石油西南油气田分公司,四川成都610051
李延钧(1966-),男,河南南阳人,副教授,博士,主要从事油气成藏地球化学和石油地质学研究.

收稿日期: 2006-06-14

  修回日期: 2006-08-09

  网络出版日期: 2006-12-10

NATURAL GAS GENESIS FOR THE SECTION Ⅱ OF WEST JIALINGJIANGFORMATION IN MIDDLE SICHUAN-SOUTH SICHUAN TRANSITIONAL BELT

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  • 1.Southwest Petroleum University, Chengdu 610500, China; 2.SouthwestBranch Company, PetroChina, Chengdu 610051, China

Received date: 2006-06-14

  Revised date: 2006-08-09

  Online published: 2006-12-10

摘要

通过对川中-川南过渡带西部的磨溪-潼南地区嘉二段天然气组成、碳同位素组成、高演化天然气储层沥青生物标志化合物的系统分析测试和混合成因气的定量估算,阐明了该区嘉二段天然气主要属于二叠系腐泥型有机质成因气,来源于二叠系过成熟为主的碳酸盐岩烃源,主力气源与嘉陵江组自身的碳酸盐岩烃源无关,并具有油型裂解气的地球化学特征。

本文引用格式

李延钧;梁艳;雷卞军;郭贵安;罗玉宏; . 川中-川南过渡带西部嘉二段天然气成因与来源[J]. 天然气地球科学, 2006 , 17(6) : 820 -823 . DOI: 10.11764/j.issn.1672-1926.2006.06.820

Abstract

The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section Ⅱ of Jialingjiang formation is mainly attributed to sapropel type organic matter gas of Permian, comes from carbonatite hydrocarbon rocks Permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of Jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas.

参考文献

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