贵州页岩气源岩特征及页岩气勘探远景分析

杨瑞东,程伟,周汝贤

doi:10.11764/j.issn.1672-1926.2012.02.340

天然气地球科学 >

2012 , Vol. 23 >Issue 2: 340 - 347

DOI: https://doi.org/10.11764/j.issn.1672-1926.2012.02.340

非常规天然气

贵州页岩气源岩特征及页岩气勘探远景分析

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贵州大学资源与环境学院，贵州贵阳 550025

杨瑞东（1963-），男，云南大理人,教授，主要从事沉积矿床和地球化学研究. E-mail:rdyang@gzu.edu.cn.

收稿日期: 2011-10-17

修回日期: 2012-01-05

网络出版日期: 2012-04-10

基金资助

贵州省省长基金(编号：2009007);贵州大学博士点学科建设基金(编号：GZUD09001)联合资助.

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Characteristics of Organic-rich Shale and Exploration Area of Shale Gas in Guizhou Province

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College of Resource and Environment,Guizhou University，Guiyang 550025,China

Received date: 2011-10-17

Revised date: 2012-01-05

Online published: 2012-04-10

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摘要

贵州在地质历史时期长期处于海洋沉积环境，特别是缺氧沉积环境发育，形成多层位黑色泥页岩。根据黑色泥页岩分布范围及厚度，主要划分出震旦系陡山沱组、下寒武统牛蹄塘组、奥陶系五峰组、下志留统龙马溪组、中泥盆统罐子窑组—火烘组、下石炭统大塘组、二叠系栖霞组—龙潭组。页岩气烃源岩具有层位多\,厚度大\,有机质含量高，成熟度高等特点。同时，根据页岩气烃源岩分布、厚度、有机质含量、成熟度等综合分析，划分出有利的页岩气成藏区，即武陵褶皱、黔中—黔北、南盘江紫云—册亨页岩气有利发育区，并认为南盘江坳陷的册亨—望谟一带是最有利的页岩气勘探远景区。

关键词： 烃源岩; 页岩气; 远景区; 贵州

本文引用格式

杨瑞东,程伟,周汝贤 . 贵州页岩气源岩特征及页岩气勘探远景分析[J]. 天然气地球科学, 2012 , 23(2) : 340 -347 . DOI: 10.11764/j.issn.1672-1926.2012.02.340

Abstract

It presented the marine environment at the long term geological time and formed the multi-sequence organic-rich shale under anaerobic deposition environment in the Guizhou province.Based on distribution and thickness of organic-rich shale,we divide into 7 organic-rich shale sequences,such as Sinian Doushantuo Formation,lower Cambrian Niutitang Formation,upper Ordovician Wufeng Formation,lower Silurian Longmaxi Formation,middle Devonian Guanziyao-Huohong Formation,lower Carboniferous Datang Formation,Permian Xixia-Longtang Formation.The shale gas source rocks in the Guizhou are characterized as multi-sequences,large thickness,high organic carbon content,and high thermal maturity.According to thickness and distribution of source rocks,organic carbon content and thermal maturity,we draw three favorable areas of shale gas exploration,i.e.Wuling fold,central-north Guizhou,and Ziyun-Ceheng of Nanpanjiang.The most favorable area of shale gas exploration in the Guizhou province is the Ceheng-Wangmo area in the Nanpanjiang basin.

Key words： Organic-rich shale; Shale gas; Exploration area; Guizhou.

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