|本期目录/Table of Contents|

[1]韩颖,张飞燕,程虹铭.基于灰关联分析的顺层钻孔瓦斯抽采有效半径主控因素研究[J].中国安全生产科学技术,2015,11(6):44-49.[doi:10.11731/j.issn.1673-193x.2015.06.007]
 HAN Ying,ZHANG Fei-yan,CHENG Hong-ming.Research on main controlling factors of effective radius for gas extraction using hole drilled along seam based on grey relational analysis[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):44-49.[doi:10.11731/j.issn.1673-193x.2015.06.007]
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基于灰关联分析的顺层钻孔瓦斯抽采有效半径主控因素研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年6期
页码:
44-49
栏目:
学术论著
出版日期:
2015-06-30

文章信息/Info

Title:
Research on main controlling factors of effective radius for gas extraction using hole drilled along seam based on grey relational analysis
作者:
韩颖123张飞燕34程虹铭2
(1. 中原经济区煤层(页岩)气河南省协同创新中心,河南 焦作454000; 2. 河南理工大学 能源科学与工程学院,河南 焦作454000; 3. 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454000; 4. 河南理工大学 安全科学与工程学院,河南 焦作454000)
Author(s):
HAN Ying123 ZHANG Fei-yan34 CHENG Hong-ming2
(1. Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region (Henan Province), Jiaozuo Henan 454000, China; 2. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 3. State Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan Polytechnic University), Jiaozuo Henan 454000, China; 4. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China )
关键词:
顺层钻孔瓦斯抽采有效半径主控因素灰关联分析
Keywords:
hole drilled along seam gas extraction effective radius main controlling factors grey relational analysis
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.06.007
文献标志码:
A
摘要:
基于顺层抽采钻孔固气耦合模型,采用COMSOL对钻孔直径、煤层物性参数及抽采参数三类因素进行了模拟分析,并运用灰关联分析方法确定了顺层钻孔瓦斯抽采有效半径的主控因素。研究表明:煤层初始瓦斯压力与煤体初始渗透率为有效半径的主控因素,抽采时间次之,钻孔直径与有效抽采负压的变化对有效半径的影响甚微;提高瓦斯抽采有效半径的首要任务是通过技术手段卸压、增透,其次要把握合理的预抽时间。
Abstract:
Based on solid-gas coupling model of gas extraction using hole drilled along seam, three types of factors such as borehole diameter, physical parameters of coal seam and gas extraction parameters were simulated and analyzed by using COMSOL, and the main controlling factors of effective radius for gas extraction using hole drilled along seam were obtained by using the method of grey relational analysis. It showed that the initial gas pressure in coal seam and initial permeability of coal body are the main controlling factors of effective radius, the gas extraction time takes second place, while the borehole diameter and effective negative pressure of extraction have a little effect on effective radius. Therefore, the primary task of improving effective radius for gas extraction is to decrease initial gas pressure and increase initial permeability of coal body, secondly it is necessary to control reasonable extraction time.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51404093);河南省基础与前沿技术研究计划项目(132300410120);河南省博士后科研项目(2012056);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开放基金项目(WS2012A09);国家安全生产监督管理总局安全生产重大事故防治关键技术科技项目(henan-0025-2015AQ);河南省教育厅科学技术研究重点项目(14A440012);焦作市科技计划项目(2014400013);河南理工大学博士基金项目(B2008-15,B2012-093)
更新日期/Last Update: 2015-06-30