1.
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。
2.
The new measuring method for distance of the gas drainage hole and seam permeability
瓦斯抽采孔孔距及煤层透气性的测定方法
3.
Practice on Relieving Shot Controlled by Borehole and Increasing Air Permeability Coefficient of Seam
钻孔控制卸压爆破增加煤层透气性系数的实践
4.
The Research on Calculating the Permeability of Coal Seams Combining the Curve of Rising Gas Pressure in the Boreholes
结合钻孔瓦斯压力恢复曲线计算煤层透气性系数的方法研究
5.
Theory and practice of integrated pillarless coal production and methane extraction in multiseams of low permeability
低透气性煤层群无煤柱煤气共采理论与实践
6.
Test on Pressure Released Blasting Applied to Seam Opening of Cross-Cut in High Gassy and Low Permeability Seam
高瓦斯低透气性煤层石门揭煤卸压爆破试验
7.
Study on Uncovering Low Permeable Coal Seam Through Cross Cut by Deep-hole Blasting Technology to Increase Permeability of Coal Seam;
石门揭穿低透气性煤层深孔爆破增透技术研究
8.
The Theory and Technology Study on Pressure Relief and Permeability Enhancements of the Coal Seam with High Concentration of Gas and Low Permeability
高瓦斯低透气性煤层卸压增透理论与技术研究
9.
Study of Gas Exhausting and Mining Techniques on Outburst Coal Seam with Low Permeability for Strengthening Antireflection
低透气性突出煤层强化增透瓦斯抽采技术研究
10.
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
11.
It is significant to prediction of coalbed permeability and resource evaluation of coalbed methane.
其结果对煤层气资源评价和煤层渗透性预测具有重要的指导意义。
12.
Research on Directional Drilling Technique of Gas Drainage in Low Gas Permeability Coal Seam;
低透气性煤层瓦斯抽放定向钻进技术研究
13.
Application of Gas Tail Gateway to Top Coal Caving Mining in Low Permeability Thick Seam
瓦斯尾巷在低透气性厚煤层放顶煤开采中的应用
14.
Study on the Technology of Increasing Drainage in High Gas and Low Air Permeability Coal Seam;
高瓦斯低透气性煤层强化增透抽放瓦斯技术研究
15.
Study on Effect of Intensified Increasing Permeability by Deep-hole Presplitting Blasting in High Gas and Low Permeability Coal Seam
高瓦斯低透气性煤层深孔预裂爆破强化增透效应研究
16.
The Research on Geology Process Simulation of Permeability Evolution in the Coal Reservoirs;
煤层气储层渗透率演化过程模拟研究
17.
Study on Mechanism of Injection Heat Increasing Production in Coal-bed Gas of Low Permeability Coal Seam
低渗透煤层煤层气注热增产机理的研究
18.
The relationship between the permeability of coal bed and production curve about coal-bed methane vertical wells
煤储层渗透率与煤层气垂直井排采曲线关系