低透气性,low permeability英语短句,例句大全

低透气性,low permeability
1)low permeability低透气性
1.Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.解决低透气性煤层瓦斯抽放问题的根本途径是增加煤层的透气性。
2.This paper describes comprehensive control and development of gas in a group of high gas and low permeability coal seams.本文介绍了高瓦斯、低透气性、复合煤层群开采矿区的瓦斯综合治理与开发,指出只要从安全、资源、环保的角度出发,在现场管理中给予高度重视,通过采用先进的地面原始煤层压裂井技术、地面垂直采空区钻井技术、灵活多变的井下抽采技术等多种方式,煤矿掘进工作面、采煤工作面的瓦斯是可以控制的,同时煤矿瓦斯也是可以得到有效的综合开发利用的。
3.The paper studied the borehole drilling technical parameters influenced to the low permeability ultra thick seam.针对高瓦斯低透气性特厚煤层回采期间瓦斯涌出量大,抽放率不高的问题,采用深孔预裂爆破强化预抽瓦斯措施,研究了钻孔工艺参数对低透气性特厚煤层的影响。

英文短句/例句

1.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
2.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
3.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
4.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
5.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
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 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
8.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
9.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
10.Countermeasures for Enhancing Gas Drainage from Single Thick Coal Seam with Low Permeability提高单一低透气性厚煤层瓦斯抽采效果技术对策
11.Application of Hydraulic Pushing Technology in Medium Thick and Low Permeability Outburst Seam水力挤出技术在中厚低透气性突出煤层中的应用
12.LOW-SPEED AND NON-LINEAR FLOW THROUGH POROUS MEDIA NUMERICAL SIMULATION FOR LOW-PERMEABILITY GAS RESERVOIR低渗透气藏低速非线性渗流数值模拟研究
13.Laboratory Study on Stress Sensitivity of Fractured Reservoir with Low Permeability裂缝性低渗透气藏的应力敏感性室内研究
14.Poor drainage causes deficient soil aeration and death of the roots.排水不良能减低土壤的透气性，使根死亡。
15.Pore deformation of low-permeability gas reservoirs is characteristic of elastic plastic deformation.低渗透气藏孔隙变形具有弹塑性变形的特征。
16.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
17.Adaptability of gas flooding for deep reservoir with low to medium permeability in Jidong Oilfield冀东油田深层中低渗透油藏气驱适应性
18.Air Pressure Fluctuation Induced by Sea Tide in a Coastal Unsaturated Zone Covered with a Layer of Lower Permeability海潮引起的临海地区低渗透性覆盖层下包气带中的气压波动

相关短句/例句

the low gas permeability coal seam低透气性煤层
1.This paper based on the low gas permeability coal seam 416 stope working face of Tongchuan mineral bureau,we analyzed the mechanism of the hydraulic cutting seam to improve the gas permeability coal seam,by this study,it shows the hydraulic cutting seam technology is effectual measure and it is provided with nicer practically and capacious foreground.文章以铜川矿务局陈家山煤矿低透气性416综放工作面为研究背景,深入研究了水力割缝增强煤层透气性的作用机理,试验表明了水力割缝的确是一种提高低透气性煤层瓦斯抽放的有效措施,并具有良好的实用性和广阔的推广前景。
3)low air permeability coal seam低透气性煤层
1.Using RFPA2D-Flow stereo-gasses coupled system to simulate the process of gas draiange in lower air permeability coal seam by loose blasting,it interprets that loose blasting is a effective ways to increase air permeability in low air permeability coal seam.运用RFPA2D-Flow固气耦合系统模拟了松动爆破抽放低透气性煤层内瓦斯的过程,解释了爆破松动是增加低透气性煤层透气性的有效途径,本文对松动爆破前后抽放过程中煤层内瓦斯压力和瓦斯渗流场的变化规律进行了数值模拟对比,为进一步理解瓦斯抽放、松动爆破增透机理等提供理论基础和科学依据。
4)high gassy and low permeability coal seam高瓦斯低透气性煤层
1.A new damage model was built for explosive for LS-DYNA3D by taking advantage of Taylor method aimed at the high gassy and low permeability coal seam,and the deep-hole presplitting explosion was numerical simulated.针对高瓦斯低透气性煤层,采用Taylor方法建立了一个新的LS-DYNA3D爆破损伤模型,对深孔预裂爆破进行了数值模拟研究,再现了爆破过程中,动压冲击震裂、应力波传播与叠加以及爆生气体驱动裂纹扩展的整个过程,分析了爆破孔间距对爆生裂纹和爆破增透效果的影响,提出了高瓦斯低透气性煤层深孔预裂爆破的合理间距为5-6 m,为高瓦斯低透气性煤层的瓦斯抽放提出了解决方案。
2.It is difficult to conduct gas drainage in a high gassy and low permeability coal seam.为了解决高瓦斯低透气性煤层的瓦斯抽放难题,利用数值模拟和现场测试相结合的方法,研究了深孔预裂爆破技术对高瓦斯低透气性煤层的卸压增透效果。
5)low permeability outburst coal seam低透气性突出煤层
1.Study on the roadway excavation rapidly in the low permeability outburst coal seam;低透气性突出煤层巷道快速掘进的试验研究
6)low permeability低渗透性
1.Aiming at the occurrence condition of soft coal seam with high gas and low permeability,we build a dynamic model for coal seam deformation and gas migration through theoretical analysis and study the characteristic of Non-Darcy flow of the gas seepage in coal seams.针对高瓦斯、低渗透性松软煤层的赋存条件,通过相关力学理论研究,建立了煤层变形与瓦斯运移耦合的动力学模型,研究了当煤层变形时,瓦斯气体在孔隙内非Darcy渗流的特点,并引入了非Darcy流β因子和加速度系数2个参量,有效地揭示了煤层瓦斯运移规律的客观本质。