摘要
针对低透特厚煤层瓦斯极难抽采的技术难题,提出了水力压裂增透技术。应用结果表明:实施水利压裂后,影响半径范围内煤层透气性系数提高了近50倍,平均瓦斯抽采浓度较之前提高了10.2倍,效果显著。
In view of the low of the extremely hard thick coal seam gas extraction technology difficult problem, put forward the hydraulic fracturing anti-reflection technology.Application results show that after the implementation of hydraulic fracturing, the influence radius of coal seam permeability coefficient increased nearly 50 times, the average concentration of the gas extraction increased by 10.2 times, the effect is remarkable.
出处
《山东煤炭科技》
2017年第6期94-96,共3页
Shandong Coal Science and Technology
关键词
特厚煤层
水力压裂
低透气性
瓦斯抽采
thick coal seam
hydraulic fracturing
low permeability
gas extraction
