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河南海陆过渡相页岩储集特征及含气性初探
Reservoir characteristics and gas-bearing potential of transitional-facies shale, Henan Province
张木辰1,4 冯 辉1,4 瓮纪昌1,2,4 王 鹍1,3,4 邱庆伦2,4 刘艳杰2,4
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DOI:
作者单位:1.河南豫矿地质勘查投资有限公司 2. 河南省地质调查院3. 河南省地质矿产勘查开发局第二地质勘查院 4. 地下清洁能源勘查开发产业技术创新战略联盟
中文关键字:海陆过渡相 早二叠世 页岩气 牟页1 井 测试分析 储集特征 含气性 河南
英文关键字: Transitional facies; Early Permian; Shale gas; Mouye 1 well; Test analysis; Reservoir characteristics; Gas-bearing potential; Henan Province
中文摘要:国内外页岩气勘查对象主要为海相页岩。2014—2017 年,中国南华北盆地海陆过渡相页岩气勘查自牟页1 井首次获
气后又取得新进展。通过对牟页1 井的氩离子抛光—扫描电镜、压汞、低温氮气吸附等测试结果进行分析,对海陆过渡相页岩的
矿物组成、储集空间类型、孔隙结构、物性、有机地化等特征进行了探讨。结果表明:①储层矿物以黏土矿物和石英为主,具有
低孔特低渗特征,物性受矿物组成和有机质影响明显;②储层具有高有机质丰度、高热演化程度特征,有机质类型以Ⅲ型干酪根
为主,显微组分具有高惰质组特点;③牟页1 井下二叠统山西、太原组页岩具有较高的含气量,与有机质丰度(TOC)及成熟度(Ro)
均呈现正相关关系。结论认为:南华北地区乃至整个华北地区上古生界山西组、太原组具有良好的页岩气勘探开发潜力。
关键词
DOI: 10.12055/gaskk.issn.1673-3177.2018.02.006

 

英文摘要:Shale-gas prospecting around the world mainly focuses on marine shale. During 2014-2017, however since shale gas was
produced, for the first time, from Mouye 1 well, new progress had been made in the transitional facies, southern North China Basin. In
this study, some experimental results on this well were analyzed, including Argon ion polishing-scanning electron microscope, mercury
injection, and low-temperature nitrogen adsorption. Then, the characteristics of transitional-facies shale were summarized, e.g. mineral
composition, reservoir space type, pore structure, physical property, and geochemistry. Results show that (1) mainly composing of
clay minerals and quartz, the reservoirs are characterized by low porosity and extra-low permeability, and these physical properties are
affected obviously by mineral composition and organic matter; (2) they are high in organic matter abundance and thermal evolution
degree, organic matters are mainly of Type Ⅲ kerogen, and the maceral presents the features of high inertinite; and (3) in Mouye 1
well, the gas content of both Lower Permian Shanxi and Taiyuan shales is higher and appears a positive correlation with organic-matter
abundance (TOC) and maturity (Ro). It is concluded that, in the Upper Paleozoic Shanxi and Taiyuan formations, southern North
China and even the whole North China area, there are better prospects for shale-gas exploration and development.
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
主管单位:中国石油西南油气田公司  主办单位:中国石油西南油气田公司勘探开发研究院
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