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- high gassy and low permeability coal seam 高瓦斯低透气性煤层
- Testing study of methane drainage by bore and hydraulic-cutting seam from low permeability coal seam 低渗透煤层钻孔与水力割缝瓦斯排放的实验研究
- Keywords low permeability coal seam;hydraulic cutting seam;bore;rate of gas permeability; 关键词低渗透煤层;水力割缝;钻孔;瓦斯渗透率;
- Keywords high gassy and low permeability coal seam;deep-hole presplitting explosion;stress waves;cracks growth;vibration superposition effect; 高瓦斯低透气性煤层;深孔预裂爆破;应力波;裂纹扩展;叠加效应;
- low permeability coal seam 低透气性煤层
- RESEARCH ON CBM DEVELOPMENT OPTIONS FROM LOW PERMEABILITY COAL SEAMS 低渗透性储层煤层气地面开发方案的探讨
- The coal seam of fully mechanized top-coal caving face 1151(3) in Xieqiao coal mine of Huainan mining area is soft and loose,and is of low permeability and poor wetting condition. 基于淮南矿区谢桥煤矿1151(3)综放面,煤层松软、渗透性低、湿润性差的特殊条件,采用煤层注水工艺技术降尘,在注水孔布置方式及参数、注水孔封孔工艺、注水工艺等方面采取一定的技术措施。
- the low gas permeability coal seam 低透气性煤层
- low permeability outburst coal seam 低透气性突出煤层
- thick coal seam with low permeability 弱透气性厚煤层
- Deep-hole presplitting explosion in coal seams with high gas content and low permeability was numerically simulated and analyzed. 摘要针对高瓦斯低透气性煤层，对深孔预裂爆破进行了数值模拟分析研究。
- coal seam with high gas content and low permeability 高瓦斯低透气性煤层
- Study on Utilizing the Hydraulic Cutting Seam Technology to Improve the Low Gas Permeability Coal Seam and Gas Drainage 利用水力割缝提高低透气性煤层瓦斯抽放的试验研究
- Numerical Test of Gas Drainage in Low Air Permeability Coal Seam by Rifting Slots 割缝排放低透气性煤层瓦斯过程的数值试验
- Practice of Using Deep-hole Presplitting Blasting Technology to Drainage Methane from Extremely- thick Coal Seam with Low Permeability 深孔预裂爆破强化抽放低透气性特厚煤层瓦斯的实践
- low air permeability coal seam 低透气性煤层
- Most low permeability gas reservoirs belong to deformed media. 摘要大部分低渗透气藏属于变形介质。
- Factors affected coal seam permeability change and its law is analyzed. 分析了煤层透气性变化的影响因素及变化规律。
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- Well logging evaluation methods for low permeability oil reservoirs. 低渗透储集层测井评价方法。
