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[1]王兆丰,李豪君,陈喜恩,等.液态 CO2 相变致裂煤层增透技术布孔方式研究[J].中国安全生产科学技术,2015,11(9):11-16.[doi:10.11731/j.issn.1673-193x.2015.09.002]
　WANG Zhao-feng,LI Hao-jun,CHEN Xi-en,et al.Study on hole layout of liquid CO2 phase-transforming fracture technology for permeability improvement of coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(9):11-16.[doi:10.11731/j.issn.1673-193x.2015.09.002]
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液态 CO2 相变致裂煤层增透技术布孔方式研究
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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9期
页码:
11-16
栏目:
学术论著
出版日期:
2015-09-30

文章信息/Info

Title:
Study on hole layout of liquid CO2 phase-transforming fracture technology for permeability improvement of coal seam
作者:
王兆丰1; 2; 李豪君1 ; 陈喜恩3 ; 赵龙1 ; 周大超1
（1. 河南理工大学 安全科学与工程学院，河南 焦作 454003; 2. 瓦斯地质与瓦斯治理重点实验室培育基地， 河南 焦作 454003; 3. 平煤股份十三矿，河南 平顶山 467000）
Author(s):
WANG Zhao-feng1; 2;  LI Hao-jun1;  CHEN Xi-en3;  ZHAO Long1;  ZHOU Da-chao1
（1. School of Safety Science & Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 2. Key Laboratory of Gas Geology & Gas Control, Jiaozuo Henan 454003, China; 3. The No.13 Mine of Pingdingshan Tianan Coal Mining Co., Ltd., Pingdingsha
关键词:
液态CO2; 强化预抽; 布孔方式; 低透气煤层
Keywords:
liquid CO2;  strengthening pre-drainage;  hole layout;  low permeability coal seam
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.09.002
文献标志码:
A
摘要:
液态CO2相变致裂技术是一种新颖的低透煤层增透技术。为了更好地将液态CO2相变致裂技术运用到低透气煤层增透领域中，在平煤十三矿进行了液态CO2相变致裂的穿层强化预抽煤层瓦斯现场试验，通过煤层致裂后的瓦斯抽采效果反映出的不同布孔方式下的致裂差异，确定液态CO2的爆破孔的合理布孔方式。现场试验表明液态CO2相变致裂在交错的梅花孔布置方式下由于能量分布均匀，致裂效果优于矩形孔布置方式，研究结果为该技术在煤层增透强化预抽领域的推广应用奠定了基础。
Abstract:
The liquid CO2 phase-transforming fracture technology is a novel technology for permeability improvement of coal seam with low permeability. In order to better applying the technology, the field tests on cross seam strengthening pre-drainage of coal seam gas by liquid CO2 phase-transforming fracture were conducted in the No.13 Mine of Pingmei. The fracture difference under different hole layouts was reflected by the gas drainage effect after coal seam fracture, so as to determine the reasonable hole layout for blast holes of liquid CO2. The results showed that the fracture effect of liquid CO2 phase-transforming fracture under the hole layout of staggered plum blossom hole is better than that of rectangular hole layout due to the uniform energy distribution. It laid a foundation for popularization and application of liquid CO2 phase-transforming fracture technology in strengthening pre-drainage domain for permeability improvement of coal seam.

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备注/Memo

备注/Memo:
国家自然科学基金资助（51274090）；河南省协同创新项目（15131319）
更新日期/Last Update: 2015-09-30