Numeric simulation of azimuth anisotropic characters of elastic wavefield in fractural coal seams;
裂隙煤层弹性波场方位各向异性特征数值模拟研究
Dynamic modelling technology of coal seam and its application;
煤层动态建模技术及应用
The distribution and exploration implications of coal beds of Pinghu Formation,Paleologene in Xihu Sag;
西湖凹陷古近系平湖组煤层分布及油气意义
Possible existence of gas hydrate in coal bed;
煤层存在瓦斯水合物的可能性
Controlling effect of the fold neutral plane on coal bed;
褶皱中和面对煤层的控制性研究
Logging interpretation of coalbed of third member of Shahejie formation in eastern depression of Liaohe basin;
辽河盆地东部凹陷沙三段煤层测井解译
Drilling techniques for coalbed in Yiqikelike area of Tarim Basin;
塔里木盆地依奇克里克区块煤层钻井技术研究
The mineable coalbeds in the entire region were compiled and numbered.
以大量钻孔资料为基础,通过分析研究,对含煤岩系的含煤性作出评价,划分了3大含煤段,利用有效的对比方法和依据,对可采煤层进行全区对比分析,最后对全区煤层进行统一编号,为该区开矿及外围勘探提供宝贵的资料。
The characters of coal seams of Guanzhai Coal Mine was introduced in the paper.
简述了官寨井田含煤层特征,分析了井田内2号、4号、9号煤层的煤质特征及其变化规律,指出了上述3层煤的主要用途。
There are many coal seams, the wide coalseams distribution area and the better reserving condition in Jixi basin.
鸡西盆地煤层多、煤层气储层分布广,储集条件较好。
3 coal seams, forecasted the distribution of the small-scale structure of the expanding area in No.
煤系中小型地质构造的发育与煤层的厚度以及砂体、泥岩分布特征有密切的关系。
Research on fire accident handling for seam with high moisture;
含水量较大煤层火灾事故处理研究
Determination of key parameters in the design of spot place in the middle of single seam mining area;
单一煤层采区中部甩车场设计中一个关键参数的确定
Sampling of coal in seam
GB482-1995煤层煤样采取方法
Chinese classification of in seam coals
GB/T17607-1998中国煤层煤分类
Crawley midget miner
克劳雷薄煤层采煤机
Shale underlies coal.
页岩层在煤层之下。
Study on Genesis of Coal Structure of No.8&10 Coal Seams in Luling Mining
芦岭煤矿8、10煤层煤体结构成因探讨
The Baie exploration area of 10~# coal seam of CBM exploration
白额勘探区10~#煤层煤层气初探
Technology of coal seam Short-wall water injection to realize dustproof
开展煤层短壁注水 实现煤层综合防尘
CBM development potential of high rank coal with reference to Qinshui coal field,Shanxi
高煤级煤的煤层气开发潜力——以沁水煤田为例
layer,(eg of coal,between layers of other materials,eg rock,clay)
（夹层中的） 层（如石层、黏土层之间的煤层）;矿层.
Comparison of strata movement between section and slicing of top coal mining in steep and thick seams
急斜厚煤层分层与分段放顶煤岩层移动对比
Analysis of Reservoir Characteristic and Affection to Desorption of Coalbed Methane
煤层气的储层特征及其对煤层气解吸的影响
Technology of Gas Outburst Elimination,Gas and Coal Dust Management with Water Injection in Coal Seam at Coal Face in "Three Soft" Coal Seam
“三软”煤层采煤工作面煤层注水消突治理瓦斯、煤尘技术
New Research on Overlying Coal Seam Effects Induced by Nether Super-thick Coal Seam Exploitation in Coal Group
煤层群下伏特厚煤层综放开采对上覆煤层影响的技术探讨
Identification of coal block tcxture with core and application
用钻孔煤心鉴别煤层煤体结构及其应用
Research on Equipments Coordination for Shearer in Soft Coal Thin Seam with Hard Roof
硬顶软煤薄煤层滚筒采煤机设备配套研究
Seam Comparison of Main Coal-bearing Section in Wujianfang Coalfield in Mogolia
内蒙五间房煤田主要含煤段煤层综合对比
New Technique of Driving Cross-cut through Coal Seam with High Bursting Danger
高瓦斯突出煤层石门揭煤后过煤门新工艺
Application of Coal Plow Made in Xinqiang Coal Mine in Thin Coal Seam
新强煤矿自制刨煤机在薄煤层中的应用管理