煤层

英国煤层的平均厚度为1米。

The average UK coal seam is one metre thick .

用地震CT技术探测煤层的不连续性

Exploring the Discontinuity of Coal Seam by Seismic CT Technique

K1煤层开采后保护范围的考察

An Investigation on the Protective Range after K 1 Coal Seam Mined

煤层底板突水脆弱性评价的GIS与ANN耦合技术

Vulnerability forecasting model based on coupling technique of GIS and ANN in floor groundwater bursting

双巷声波CT采集系统是矿井煤层构造探测的实际应用系统。

Two gateways sound wave CT system is the system that can actually be applied in detecting the structure in coal seam .

C煤层沉积处在海进的初期，它为富含多门类海相动物化石的原地树皮残植煤。

C seam was deposited in the initial period of transgression . It is a kind of in-situ bark liptobiolites containing a large quantities of marine animal fossils of different phylum .

HEC煤层压裂液的性能评价及应用

Performance Evaluation and Application of Coal - bed Fracturing Fluid

应用DTM改善煤层自燃的热红外探测

Using DTM to Improve the Accuracy of Detecting Coal Fires with Thermal Infrared Images

利用C++语言基于Windows操作环境开发了适用于煤田地震资料解释的煤层厚度辅助解释系统。

The seismic coal thickness assistant interpretation system , which is suit for coal seismic data interpretation , is worked out by using C + + language on the base of Windows .

煤层瓦斯因与CO2之间的碳同位素交换或因生物作用而富含~（12）C。

The gas in coal bed is rich in ~ ( 12 ) C , because of the exchange of carbon isotope between the gas in coal bed and the CO_2 or the organism reaction .

将蒙特卡罗（Monte-Carlo）法引入煤层气资源量计算，可弥补容积法视各参数为常数的不足。

The Monte-Carlo method can resolve the problem that every parameter is often regarded as a constant during the process of calculating coalbed gas resource .

分析O2、CO通过封闭墙和煤层等多孔介质的扩散机理，并推导了有效扩散系数的计算公式。

The article analyzes the diffusion mechanism of O2 and CO transferring in the porous media such as obturating wall and coal and deduces the calculating expressions of the effective diffusion coefficient .

在我国的煤层气资源储量中，埋深2000m以浅的储量约35万亿m3，开发潜力巨大。

Among the CBM resources in China , some 35 trillion m ~ 3 are reserved less than 2000m in depth , featuring enormous development potential .

文章介绍了上述石油系统（CNPC）煤层气钻井现状及煤层气小井眼钻井技术研究和勘探性工艺试验情况。

In this paper , the actual drilling situation for coalbed gas and the situation of slim hole drilling technique and technological test for coalbed gas by CNPC is presented .

顶煤破坏系数随工作面推进距离和工作面长度的增加而变化。考虑矿山压力对顶煤的压裂作用，20m特厚中硬煤层综放工作面的长度应大于300m；

Top coal failure coefficient varies with face advance distance and face length , the fully mechanized sublevel caving face length for 20m very thick and medium hard seam should be over 300m ;

MS-215型大直径绳索取心器及其在煤层气井中的应用

MS-215 type large diameter wire line core barrel and its application in CBM well

百善煤矿主采煤层上方直接覆盖有22～27m的砂砾石含水层，严重威胁矿井的安全生产。

The main target coal seam of Baishan Mine is directly covered with a 22 ~ 27 m thick gravel aquifer , which seriously threatens the safety of mine .

在煤层厚度0&20cm，总的γ辐射强度随厚度变化比较显著；而在20cm以上，则变化较为缓慢，但低能区γ强度仍有较显著变化。

The total intensity of γ - rays decreases obviously with the thickness up to 20 cm , and slowly above the thickness : But the intensity for γ - rays in low energy region changes still rather obviously even for greater thickness .

通过对轻型放顶煤配套设备的选型与运用，进一步解决了4.0m～6.0m厚煤层一次采全高留底煤的技术问题。

Through the type-selection and application of the light breaking props , this paper solves the technical problem of the bottom maintaining coal in the high seam with the thickness of 4.0 m ~ 6.0 m in one time .

通过野外调查和室内研究，查明韩城矿区11煤层底板（南区）和煤层中、下部（北区）有一层厚060～130m的高岭岩矿层。

On the basis of a great deal of field investigation and indoor study , it is ascertained that a layer of kaolinite deposit in thickness of 0.60 ~ 1.30 meters occurred in floor of coal bed No. 11 in southern district and in mid-lower part of coal bed No.

煤层含气量是煤矿设计和煤层气开发利用中极为重要的参数之一，其值变化范围大（0～20m3／t），影响因素多而复杂。

Coalbed gas content , with a big change range ( 0 ~ 20 m3 / t ) and affected by a lot of complex factor , is a very important parameter in coal mine design and coalbed gas development .

急倾斜煤层巷道锚注加固试验研究

Experimental Research on Anchor-grouting Reinforcement of Roadway in Steep Coal seam

急倾斜煤层开采地表沉陷的渐近灰色预测

Asymptotic grey forecasting of ground subsidence in steep coal strata mining

开采含夹矸煤层的煤质管理

Coal quality management with mining of seams which contain dirt bands

煤中硫分在煤层对比中的应用

Application of Sulphur Content in Coal to Correlation of Coal Seams

物质平衡法在煤层气井产能预测中的应用

Application of material balance method in coalbed gas well productivity forecast

非等温条件下煤层瓦斯运移规律的研究

On law of the gas flow under conditions of unequal temperature

为有效开采煤层气，应用定向钻进技术施工煤层气定向井。

The application of horizontal directional drilling technology in municipal pipeline ;

关于急倾斜中厚煤层开采工艺的探讨

Approach on mining processing in steep dip middle - thick seam

极薄煤层钻采工艺在保护层开采中的应用克劳雷薄煤层采煤机

Extremely Thin Protectors Drilling Picks the Craft in Protector Mining Application