|本期目录/Table of Contents|

[1]杨明,刘亚鹏.高阶煤孔隙特征的低场核磁共振实验研究[J].中国安全生产科学技术,2016,12(11):63-69.[doi:10.11731/j.issn.1673-193x.2016.11.011]
 YANG Ming,LIU Yapeng.Experimental study on pore characteristics of high rank coal by low field NMR[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(11):63-69.[doi:10.11731/j.issn.1673-193x.2016.11.011]
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高阶煤孔隙特征的低场核磁共振实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年11期
页码:
63-69
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-11-30

文章信息/Info

Title:
Experimental study on pore characteristics of high rank coal by low field NMR
文章编号:
1673-193X(2016)-11-0063-07
作者:
杨明123刘亚鹏3
(1. 煤炭安全生产河南省协同创新中心,河南 焦作 454003;2.河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家 重点实验室培育基地,河南 焦作 454003;3.河南理工大学 安全科学与工程学院,河南 焦作 454003)
Author(s):
YANG Ming123 LIU Yapeng3
(1. The Collaborative Innovation Center Of Coal Safety Production of Henan, Jiaozuo Henan 454003, China; 2. State Key Laboratory Cultivation Base For Gas Geology and Gas Control, Jiaozuo Henan 454003, China; 3. School of Safety Science and Engineering, He
关键词:
孔隙低场核磁共振渗透率孔径分布
Keywords:
pore low field NMR permeability pore size distribution
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.11.011
文献标志码:
A
摘要:
研究孔裂隙特征对煤层中甲烷的产出及运移具有重要的意义。为了得到高阶煤的孔裂隙特征信息,采用低场核磁共振仪对高阶煤样做低场核磁共振实验,测得煤样的T2图谱,进一步分析得到了煤样的核磁渗透率、核磁孔隙度、可动流体饱和度、束缚流体饱和度以及孔径分布等参数的实验结果,并测出煤样的工业分析参数。分析结果得出:原煤中孔隙体积与煤的挥发分含量呈正比的关系;高阶煤孔隙发育而裂隙不发育,并且在孔隙中微孔和小孔占有较大的比例而中孔和大孔占有较少的比例;煤样渗透率与煤样内小孔和大孔所占的比例成正比,与煤样内微孔所占的比例成反比等结论。
Abstract:
The study on the characteristics of pore and fracture is of great significance to the output and migration of methane in coal seam. In order to obtain the characteristic information of pore and fracture in high rank coal, the low field NMR experiments were carried out on the high rank coal samples by using the low field NMR apparatus, and the T2 maps of coal samples were obtained. Further analysis was made to get the experimental results of the parameters such as NMR permeability, NMR porosity, movable fluid saturation, irreducible fluid saturation and pore size distribution of coal samples. Besides, the industrial analysis parameters of coal samples were measured. The results showed that the pore volume of raw coal is proportional to the content of volatile matter in coal. The pores in high rank coal develops, while the fracture has no development. Among the pores, the micro pores and small pores occupy a large proportion, while the middle and large holes account for a small proportion. The permeability of coal sample is proportional to the proportion of small holes and large holes in the coal sample, and is inversely proportional to the proportion of micro pores in the coal sample.

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备注/Memo

备注/Memo:
河南省基础与前沿技术研究项目(142300413233);河南省高校基本科研业务费专项资金资助(NSFRF140106);河南理工大学博士基金(B2015-09)
更新日期/Last Update: 2017-01-04