您要查找的是不是：
- Reserves of coal, coal bed methane gas, bauxite, refractory clay, potassic rock and so on rank first in China. 煤、煤层气、铝土矿、耐火粘土、铁矾土、含钾岩石等储量居全国首位；
- 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。
- 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。
- Shenfu coal (a kind low rank coal) was used to produce high concentration CWM through de -watering and upgrading technology treatment. 介绍了神府低阶煤种经热力改性处理,可提高成浆浓度的研究结果,为低阶煤等难制浆煤种制备水煤浆提供了重要技术支持。
- The low rank coal CBM geology,including reserve condition,reservoir parameters and resource,is discussed in a case of Jurassic formations in Ordos Basin. 以鄂尔多斯盆地侏罗系为例,分析了低变质煤的煤层气地质特征、保存条件、主要储层参数的分布特征以及煤层气资源状况。
- DAI Zhong-shu,ZHENG Yun-hui.The study of groups variation of low rank coal during low temperature pyrolysis by FTIR spectrography[J].Coal Conversion,1997,20(1):54-58. [9]戴中蜀;郑昀辉.;经低温热解后各基团变化的研究[J]
- Coal bed methane content is fairly high which threatened safety mining in some areas in Shuangyashan mining area. 双鸭山矿区局部区域煤层瓦斯含量较高,威胁到安全生产。
- The development of Coal bed Methane (CBM) has made greater progresss in recent years. 摘要近年来，煤层气开发取得了较大进展。
- The exploration strategy of coal bed methane of coal basin in low coal rank in northwestern China 浅议我国西北低煤阶含煤盆地煤层气的勘探对策
- There are many middle and small types of basin in China with abundant coal bed methane resource, PetroChina has made breakthough of coal bed methane exploration in some basins. 中国中小型含煤盆地种类众多,煤层气资源巨大,中国石油天然气股份有限公司对一些盆地的煤层气勘探已经取得了突破。
- All the above observations indicate that lower rank coal is easier to combust than higher rank coal. 上述结果说明煤的变质程度越低燃烧越容易。
- The results show that it is feasible to adopt this method in laboratory for investigation of desoxydation of low temperature pyrolysis in low rank coals. 结果表明，在实验室采用此法研究低煤化度煤低温热解脱氧是可行的。
- Methanol and its derivatives, acetylene chemical industry, coarse benzene processing, chemical fertilizers, coal tar deep processing, coal combined oil and the all-round utilization of coal bed methane and coke oven gas and so on. 甲醇及衍生物、乙炔化工、粗笨加工、化肥、煤焦油深加工、煤制油以及煤层气和焦炉煤气多联产利用等。
- In contrast, CBM gas reservoir in low rank coals has a short but centralized adsorption equilibrium time and high initial relative desorption percentage and speed. 其化学分子结构、物理结构及显微组分的差异是导致该差异的主要原因。
- As we know,CO_2 has a higher adsorbability than CH_4.If CO_2 is injected into coal seam,CH_4 can be replaced by CO_2.By using this technology,we can develop the deeply buried coal bed methane in most of our coal basins. CO2的吸附能力是CH4的4倍以上,如果把CO2通过钻井注入到深部煤层中,由于其吸附能力的差异,CH4会被优先置换出来,利用该技术一方面实现封存CO2的目的,同时还能够开发深部CH4。 这种置换技术在我国很多含煤盆地具有广阔的应用前景。
- GRADUAL GASIFYING OF LOW RANK COAL 低煤阶煤的分级气化
- It is restricted by geologic setting of coal bed formation and geometric configuration of borehole to utilize multiple laterals horizontal well(MLHW) to develop coal bed methane(CBM) resources. 应用多分支水平井开发煤层气资源,受到煤层地质条件和分支井眼几何形态等主控因素的制约,只有将二者有机结合并进行井身结构优化,才能发挥多分支水平井的效率。
- high sulphur occurring low rank coal 高硫低阶煤
- In order to study the mechanism to improve penetration rate and coal bed methane desorption rate with ultrasonic interference, the effects of space on the coal reservoir permeability are analyzed. 摘要为了对超声波干扰提高煤储层渗透率和煤层气解吸率的作用机理进行研究，分析了空化效应对煤储层渗透率的影响。
- Fracture operation is one of the important manners for exploitation of CBM and to obtain enough information is very critical for fracturing treatment in a coal bed methane formation. 压裂是煤层气开采的重要手段之一,而压裂前获取煤层相关地层参数,对压裂设计及压裂施工十分必要。
