国外煤层气发展现状

1美国煤层气发展现状 上世纪70年代末至80年代初，美国开始进行地面开采煤层气试验并取得成功。从1983年到1995年的12年间，煤层气年产量从1．7亿m^3猛增至250亿m^3，基本形成产业化规模。2003年，美国煤层气年产量已超过450亿m。，2004年产量达500亿m^3，煤层气占气体能源(天然气)总量的8％～10％，成为重要的能源资源。     

不断发展的煤层气抽入技术

在过去的20年中，美国的年煤层气产量是由零逐渐增长到283亿m^3，是国内天然气产量的5％。目前美国共有煤层气生产井6000多口。据美国能源信息管理局的最新数据，美国拥有探明煤层气储量是3000亿m^3。     

煤层气及瓦斯开发步入产业化

2006年5月底，国家发展改革委员会批准了煤层气（煤矿瓦斯）开发利用“十一五”规划，将瓦斯和煤层气推向了开发利用的产业化发展渠道，并力争到2010年，全国煤层气产量达100亿m^3，其中，地面抽采煤层气50亿m^3，利用率100％；井下抽采瓦斯50亿m^3，利用率60％以上．新增煤层气探明地质储量3000亿m^3，并逐步建立煤层气和煤矿瓦斯开发利用产业体系．     

“十二五”我国煤层气年产量将达45亿m~3

国土资源网2010—06—08消息近日，在第十三届科博会中国石油天然气产业峰会上，有关负责人透露，根据“十二五”煤层气发展规划，2012年，我国将新增探明煤层气储量2000亿m^3。2015年产量达到45亿m^3。     

我国将全方位推进煤矿瓦斯抽采利用工作

根据新一轮资源评价结果，我国陆上煤层气资源量36．8万亿m^3，与陆上常规天然气资源量（38万亿m^3）相当，仅次俄罗斯和加拿大。我国煤层地质条件复杂，煤层气储层特征为低压、低渗透、低饱和度，大规模开发在理论和技术方面尚存在难题。     

中国煤层气资源

1995年，中国煤田地质总局组织全国各省煤田地质局开展煤层气资源评价工作。1996年至1998年接着进行《全国煤层气资源评价》研究。这是在四十多年煤田地质勘探资料和煤田地质研究成果的基础上取得的最新的煤层气资源量。对我国煤层气勘探开发战略和部署必将产生深远的影响。本文扼要阐述了全国煤层气资源分布状况。本次计算结果：含气量大于4m^3/t，埋深2000m以浅的煤层气总资源量为14．34万亿m^3。我国煤层气资源蕴藏丰富，但主要集中于华北聚气区和华南聚气区西部，东北和西北聚气区煤层气资源量较少．目标区煤层气资源丰度相对较高，＞1．5亿m^3/km^占54%，但多为1．5-3．5亿m^3/km^2之间，最高仅为8．77亿m^3/km^2。在深度分布上以1500m以浅深度内煤层气资源量为主；由于以往勘探深度较浅，预测储量的比例低。 结果表明，华北聚气区煤层气资源巨大，资源丰度较高，目标区规模较大，大型目标区数量多，华南目标区资源规模小。大、中型目标区局限于黔西、滇东、川南、黔北等西部地区，而且目标区的资源丰度低，平均约0．97亿m^3/km^2。而煤层埋深较浅。东北聚气区的目标区规模偏小。但煤层气资源丰度较高。西北聚气区总的特点是目标区以小型为主，面积小，资源量少，资源丰度高。煤层气资源主要集中在淮南煤田。     

新疆成为我国天然气最大产区最大的外输省区

油气资源丰富的新疆2006年天然气产量达161亿m^3，超过四川成为我国天然气最大的生产和外输省区。“十一五”开局之年，新疆石油、天然气产量保持快速增长，其中天然气产量为161亿m^3，比上年增加55亿m^3，超过四川跃居全国第一。新疆境内三大油田——塔里木油田、克拉玛依油田和吐哈油田天然气产量分别为110亿m^3、28．8亿m^3和16．5亿m^3。     

中国主要矿区煤层气资源的评估

煤层气资源的评估是规划煤层气开发利用的基础。本文根据我国煤层气开发的已有成功经验和煤层气资源与煤层共生、共储、共采的特点，认为近期内应以煤炭可供开采的资源量为基础评估煤层气资源才有比较现实的意义。以对各矿区煤层测定的大量瓦斯吸附常数、孔隙率、煤质分析资料和现场实测的煤层瓦斯压力为基础，计算了煤层的瓦斯含量，并提出了以目前中国主要煤矿区为单元的煤层气资源评价结果。中国主要煤矿区的煤层气保有资源量总计为47303．4亿m^3。，备采煤层气资源量为13878．6亿m^3。     

南票矿区三家子煤矿煤层气资源及开发利用现状

利用煤层气发电，有助于促进煤矿改善安全生产条件、减少温室气体排放，具有明显的环境效益和经济效益。辽宁南票矿区煤层气储量丰富，总储量约为28亿m^3。井下瓦斯的相对涌出量23．8m^3／t，甲烷浓度为16．8～60％。本文介绍了该矿区的煤层气资源现状以及相关开发利用情况。     

山西财政将出资1亿元鼓励煤层气开发

7月15日,从山西省财政厅获悉,今年财政部门将拿出1亿元资金,用于鼓励企业开发利用煤层气。 为鼓励企业抽采煤层气,我国启动了煤层气补贴工作。企业每抽采1m^3的煤层气,将得到0．2元的补贴。对此,山西省也制定鼓励政策,对开发利用煤层气,省财政补贴0．05元／m^3。预计今年山西省煤层气开发利用企业将享受到中央和省级财政补贴资金1亿元。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586