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- Keywords coal bed dislodgement;fault;essential factor of production; 煤层变位;断层;产状要素;
- Keywords coal bed;microlithotype;cleat;relationship; 煤层;显微煤岩类型;裂隙;关系;
- Keywords coal bed gas （CBG）;technology;exploration;Shanxi; 煤层气;技术;开发利用;山西;
- Keywords coal bed;structure;radiometric survey;electric survey;Dengfeng; 煤层;构造;放射性测量;电测;登封;
- Keywords coal bed gas;porosity logging;trilaterally electronic resistivity; 煤层气;孔隙度探测;三测向电阻率;
- coal bed dislodgement 煤层变位
- Keywords coal bed gas;means of shut in well;se aling column core;well testing with injection pressure decline; 煤层气;井下关井工具;密封柱心;注入压降试井;
- Keywords Coal bed gas;Comprehensive evaluation;Linear objection group;Circular image;Jixi Cooperative District; 煤层气;综合评价;线性体群;环形影像;鸡西合作区;
- It is a new way of the utilization of coal bed gas. 为井下抽放煤层气的利用提出了一条新的途径。
- Keywords coal bed;rock mechanics;physical property;hydraulic fracturing;isotropy;anisotropy;structural feature;fracture geometry;tensile strength;fracture;fracturing pressure; 煤层;岩石力学;物理性质;水力压裂;各向同性;各向异性;构造特征;裂缝几何学;抗压强度;抗拉强度;断裂;破裂压力;
- Coal Bed Methane Drilling and Completion Technology in Western Basin of U.S. 美国西部盆地煤层气钻井和完井技术。
- Preliminary research on structural law of coal bed beneath nappe in No. 对新集二矿推覆体下煤层构造规律进行了初步研究。
- Graphite deposit of Heye was formed by metamorphism of the Permian coal bed. 荷叶石墨矿是由二叠系煤层变质而成的石墨矿床,石墨与煤呈同层异矿关系。
- Several coal beds are developed in backswamp deposits. 河漫沼泽上发育多套煤层。
- For measuring exactly on gas content of coal bed,required high core recov ery and short time to hoisting and loa ding. 为了准确测定煤层含气量,要求取心作业必须有高的收获率和尽可能短的提钻及出筒装罐时间。
- The existing mine gas in coal bed occurs mostly in the free state,the adsorption state and the dissolved state. 瓦斯气体在煤储层中的赋存状态主要有游离态、吸附态和溶解态。
- The hydro-geological parameters of Triassic age coal bed 3 of Dongtan Coal Mine be calculated with it. 利用相关方程求出了全东滩矿3煤砂岩顶板含水层的水文地质参数。
- Roadway heading is the forerunner for clearly knowing coal bed geological conditions. 掘进巷道是全面、准确了解矿井煤层地质条件的先导。
- The coal bed methane (CBD) utilization level is low due to the lack of technology, fund and market demand. 由于技术、资金和市场的欠缺使得中国煤矿瓦斯利用水平还不是很高。
- The mining of shallow coal bed in Shenfu Mine is seriously threatened by suffosion hazard of coal shaft. 神府矿区浅部煤层开采受到矿井溃砂的严重威胁。
