Multi-tests for pore structure characterization-A case study using lamprophyre

被引：16

作者：

Li, Zhen ^{[1
,2
]}

Feng, Guorui ^{[1
,2
]}

Luo, Yi ^{[3
]}

Hu, Shengyong ^{[1
,2
]}

Qi, Tingye ^{[2
]}

Jiang, Haina ^{[2
,4
]}

Guo, Jun ^{[1
,2
]}

Bai, Jinwen ^{[1
,2
]}

Du, Xianjie ^{[1
,2
]}

Kang, Lixun ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Coll Min Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Green Min Engn Technol Res Ctr Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China

[3] West Virginia Univ, Dept Min Engn, Morgantown, WV 26506 USA

[4] Taiyuan Univ Technol, Inst Min Technol, Taiyuan 030024, Shanxi, Peoples R China

来源：

AIP ADVANCES | 2017年 / 7卷 / 08期

基金：

中国国家自然科学基金;

关键词：

GAS-ADSORPTION; COAL; BASIN; INTRUSION; POROSITY; SYSTEMS; CHINA; AREA; FLOW;

D O I：

10.1063/1.4997749

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The pore structure plays an important role to understand methane adsorption, storage and flow behavior of geological materials. In this paper, the multi-tests including N-2 adsorption, mercury intrusion porosimetry (MIP) and CT reconstruction have been proposed on Tashan lamprophyre samples. The main findings are listed: (1) The pore size distribution has a broad range ranging from 2-100000nm, among which the adsorption pores (<100nm) occupies the mainly specific surface areas and pore volume while the seepage pores (>100nm) only account for 34% of total pore volume. (2) The lamprophyre open pores are mainly slit-like/plate-like and ink-bottle-shaped pores on a two-dimensional level. The lamprophyre 3D pore structure shows more stochastic and anisotropic extension on the z axis to form a complex pore system on a three-dimensional level. (3) The closed pores (>647nm) occupy averaged 74.86% and 72.75% of total pores (>647nm) volume and specific surface area indicating a poor connectivity pore system. The revealed results provide basic information for understanding the abnormal methane emission reasons in similar geological conditions with lamprophyre invasions. (C) 2017 Author(s).

引用

页数：10

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