米仓山&mdash;大巴山前缘古生界重点剖面烃源岩特征研究

贾锦生,宋华颖,伊海生,陈文斌

doi:10.11764/j.issn.1672-1926.2011.06.1046

天然气地球科学 >

2011 , Vol. 22 >Issue 6: 1046 - 1053

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.06.1046

天然气地质学

米仓山—大巴山前缘古生界重点剖面烃源岩特征研究

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1.中国地质大学(武汉),湖北武汉 430074；2.浙江省第三地质大队,浙江金华 321001；
3.成都理工大学沉积地质研究院,四川成都 610059；
4.成都地质矿产研究所,四川成都 610059

贾锦生(1964-),男,浙江义乌人,高级工程师,主要从事矿物学和矿床学研究.E-mail:13957985116@139.com.

收稿日期: 2011-08-16

修回日期: 2011-09-16

网络出版日期: 2011-12-10

基金资助

“十一五”国家科技支撑计划项目(编号：2006BAB01A12-5)资助.

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Characteristic of Paleozoic Hydrocarbon Source Rocks from Key Sections of Frontal Micangshan-Daba

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1.China University of Geosciences,Wuhan 430074,China;
2.Zhejiang No.3 Geology Group,Jinhua 321001,China;
3.Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China;
4.Chengdu Institute of Geology and Mineral Resources,Chengdu 610059,China

Received date: 2011-08-16

Revised date: 2011-09-16

Online published: 2011-12-10

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摘要

从岩性特征、有机质丰度、有机质类型及有机质成熟度等方面对米仓山—大巴山前缘古生界16条剖面中的烃源岩进行有机地球化学特征的研究,认为研究区内下寒武统及下二叠统为主力烃源岩地层,下志留统及上奥陶统在局部地区存在有利的烃源岩发育段。烃源岩有机地球化学特征综合分析表明,研究区烃源岩主要为生烃能力较强的Ⅰ型、Ⅱ₁型,均处于高成熟—过成熟阶段,以过成熟烃源岩为主,但仍具有生气能力。

关键词： 米仓山— 大巴山前缘; 古生界; 烃源岩; 有机地球化学

本文引用格式

贾锦生,宋华颖,伊海生,陈文斌 . 米仓山—大巴山前缘古生界重点剖面烃源岩特征研究[J]. 天然气地球科学, 2011 , 22(6) : 1046 -1053 . DOI: 10.11764/j.issn.1672-1926.2011.06.1046

Abstract

Paleozoic source rocks from 16 sections of frontal Micangshan-Daba are studied in this article by the quantity,type and maturity of the organic matter and the lithology. The results show that the hydrocarbon source rocks are mainly from the lower Cambrian and the lower Permian,and developing source rocks occur in some areas of the lower Silurian and the upper Ordovician. Comprehensive analyses of geochemistry characteristics of the source rocks suggest that the source rocks are mainly type I and type II which have great hydrocarbon generation ability. The source rocks at over\|maturing stage are mainly over-mature source rocks,but still have gas generating capacity.

Key words： Micangshan-Daba front; Paleozoic; Source rocks; Organic geochemistry.

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