Accumulation conditions of shale gas from Lower Silurian Longmaxi Formation in Guizhou

被引：3

作者：

Zhang P. ^{[1
,2
]}

Zhang J. ^{[1
]}

Liu H. ^{[2
]}

Huang Y. ^{[2
]}

Lü Y. ^{[1
]}

机构：

[1] School of Energy Resources, China University of Geosciences, Beijing

[2] Department of Mining Engineering, Liupanshui Normal University, Liupanshui

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban) | / 9卷 / 3085-3092期

基金：

中国国家自然科学基金;

关键词：

Accumulation condition; Favorable areas; Potential of shale section; Shale gas;

D O I：

10.11817/j.issn.1672-7207.2016.09.024

中图分类号：

学科分类号：

摘要：

With the Lower Silurian Longmaxi Formation shales being the research object, the accumulation conditions of marine shale gas of Longmaxi Formation in Guizhou were studied based on the results of drilling, experimental test results of core samples and outcrops given to the complexity for shale gas accumulation conditions of Guizhou. The results show that Longmaxi Formation black shales in this region are mainly formed in shelf sedimentary facies, with the features of having great organic-rich shale thickness, and high organic mass fraction (the potential of shale section average w(TOC)>4%); organic matters are of type I and II1; organic matter thermal evolution level is in high-over; the shales are rich in brittle mineral, and have medium porosity and high gas content. Compared with the shales in North America which is explored and developed successfully. The Lower Silurian Longmaxi Formation has good accumulation conditions for shale gas. Therefore, the bottom of Longmaxi Formation is considered as the protential target for shale gas exploration, and the favorable areas of shale gas enrichment are also predicted. © 2016, Central South University Press. All right reserved.

引用

页码：3085 / 3092

页数：7

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