煤层气抽放,gas drainage in coalfield
1)gas drainage in coalfield煤层气抽放
1.Exploitation and accomplishment of the expert system for selecting the method ofgas drainage in coalfield煤层气抽放方法选择专家系统的开发和实现
英文短句/例句
1.Exploitation and accomplishment of the expert system for selecting the method of gas drainage in coalfield煤层气抽放方法选择专家系统的开发和实现
2.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
3.The application of the gas drainage technology in Donghai coal mine is introduced, including gas drainage in close coal layer, gas drainage in goaf, gas drainage from coal, and local gas drainage.介绍瓦斯抽放在东海矿的应用,抽放方式为邻近层抽放、空区抽放、本煤层抽放及局部抽放。
4.The Better Chosen of the Field Arrangement of the Drill Hole Pulls Out Putting Drills and the Drill Hole Parameter of the Coal Bed Gas in PanJiang Mining Area;盘江矿区煤层气钻孔抽放钻场布置及钻孔参数优选
5.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
6.Coal Seam Gas-bearing Properties and Theoretical CBM Recoverable Ratios in Wulunshan Mine Area, Guizhou五轮山矿区煤层含气性与煤层气理论抽采率
7.There are many kinds of forms of gas discharge, but the main form is soft coal seam gas discharge.瓦斯抽放形式有多种,本煤层抽放是其主要形式。
8.The Theory and Its Application on Gas Drainage in Low-Permeability Coal Seams;低渗透煤层瓦斯抽放理论与应用研究
9.Primary Study on the Effect of Gas Drainage on Coal Seam Water Infusion瓦斯抽放对煤层注水效果的影响初探
10.STATUS AND PROBLEMS OF DRAINAGE AND UTILIZATION OF DOWNHOLE COALBED METHANE IN COAL MINES IN CHINA;我国煤矿井下煤层气抽采利用现状及问题
11.Gas Drainage by Boring Near Seam at 43001 Coal Face43001采煤工作面上邻近层穿层钻孔瓦斯抽放
12.The use of adjacent area mine gas extraction data for the determination of rationalized time to extract coalbed methane利用相邻区域瓦斯抽放数据确定煤层瓦斯合理抽放时间
13.Gas drainage in seam with large auto variable diameter bore holes自动变径大直径钻孔抽放煤层瓦斯试验
14.Experimental Research on Gas Drainage of Tunneling Face in Loose and Low Permeability Coal Seam松软低透煤层掘进工作面瓦斯抽放技术研究
15.A Study of the Second Hole Sealing Method to Improve Gas Drainage in Coal Seams煤层瓦斯抽放钻孔的二次封孔方法研究
16.Application of Gas Extraction Technology by High-level Fracture Borehole in Fully Mechanized Caving Face of Thick Coal Seam高位裂隙钻孔抽采技术在厚煤层综放面的应用
17.Application of Pressure Relief Drainage Technology in Mining Fold Coal Seam卸压抽放技术在开采褶皱煤层中的应用
18.Application & Improvements of Beam Pumpers for CBM Recovery游梁式抽油机在煤层气开采中的应用与改进
相关短句/例句
coal bed gas抽放煤层气
1.Numerical simulation of pressure swing adsorption processes forcoal bed gas extracted;抽放煤层气变压吸附过程的数学模拟
3)coalbed methane extraction煤层气抽采
1.Summing up the status-quo of coalbed methane(mine gas) extraction and utilization in this country over the recent years,this article elaborates on the current state of thecoalbed methane extraction technology,utilization technology and coalbed methane CDM project in this country.总结了最近几年中国煤层气(瓦斯)的抽采及利用现状,阐述了中国目前煤层气抽采、利用技术及煤层气CDM项目的进展。
4)coal seam gas drainage本煤层瓦斯抽放
5)gas pre-extraction from coal seam being worked本煤层瓦斯预抽放
6)gas-bleed抽气，放气
延伸阅读
煤层煤层coalseam由植物遗体转变而成的层状固体可燃矿产。含煤岩系的重要组成部分，位于顶、底板岩石之间。煤层的厚度、层数、煤质和埋藏深度等是确定煤田经济价值及煤矿建设的重要依据。煤层可分为不含夹石层和含夹石层两类。夹石又称夹矸。夹石不仅使煤的灰分含量增高，也给开采带来一定困难。煤层顶、底板岩石之间的垂直距离称煤层厚度。煤层厚度可分为：①煤层总厚度。指包括夹石层在内的煤层全部厚度。②煤层纯厚度。指所有煤分层厚度的总和。③煤层可采厚度。指在当前经济技术条件下适于开采的煤层厚度。煤层沿走向和倾向通常呈层状、似层状展布或分叉、复合、尖灭，有的呈透镜状、豆荚状、鸡窝状和串珠状。
