我国重点盆地致密油气资源潜力评价

我国致密油气勘探开发在鄂尔多斯盆地、四川盆地、松辽盆地、准噶尔盆地等盆地取得了一系列新发现和新突破,储量和产量快速增长,是现阶段最现实的非常规油气资源。梳理总结致密油气勘探开发进展,采用三大类七种评价方法,对10个重点含油气盆地致密油气资源进行评价,计算得到致密油地质资源量146.60×10~8 t,可采资源量14.55×10~8 t,致密气地质资源量22.88×10~(12) m~3,可采资源量11.26×10~(12) m~3。综合分析认为,我国致密油气资源丰富、潜力大,尽管面临技术成本等挑战,但是抓住新形势和新机遇,具有良好的勘探开发前景。     

清镇市新店西二勘查区煤层气资源评价

根据勘查区煤田地质钻孔勘查资料及煤层气参数井获得的详实资料,对新店西二勘查区煤层气资源量进行了估算和预测。区内主采煤层主要为中灰~中高灰、中高硫~高硫、中发热量~高发热量、特低挥发分煤。区内煤层气总资源量7.24×10~8m~3,其中9号煤层为4.81×10~8m~3,13煤层为2.43×10~8m~3;煤层气资源丰度为0.19×10~8m~3/km~2,本勘查区内煤层气储量规模为小型,其煤层气资源储量丰度特低。     

库拜煤田中部煤层气资源评价

介绍了勘查区煤田地质钻孔勘查资料及煤层气参数井获得的详实资料,对库拜煤田中区煤层气资源量进行了估算和预测。区内主采煤层主要为低水分、高灰、中-中高挥发分的煤。结果显示,区内煤层气总资源量为266.19×10~8m~3,其中A_3号煤层煤层气资源量79.23×10~8m~3,A_5号煤层煤层气资源量57.66×10~8m~3,A_7号煤层煤层气资源量43.00×10~8m~3,A_(9-10)煤层气资源量33.61×10~8m~3。     

库拜煤田东部煤层气资源评价

根据勘查区煤田地质钻孔勘查资料及煤层气参数井获得的详实资料,文章对库拜煤田东区煤层气资源量进行了估算和预测。区内主采煤层主要为低中灰、中高挥发分的煤。区内煤层气总资源量为179.01×10~8m~3,其中下_5号煤层为78.65×10~8m~3,下_(10)号煤层为64.36×10~8m~3;煤层气资源丰度为1.55×10~8m~3,本勘查区属于煤层气资源量规模中等丰度、中深埋深的中型煤层气田。     

鸡西盆地梨树煤矿煤层气储量计算及经济评价

为了论证梨树煤矿地面煤层气开发的经济性,按照煤层气资源/储量规范,划定了储量计算单元,采用体积法计算了14号煤层的地质储量,显示全区控制地质储量3.58×10~8m~3,探明地质储量为0.91×108m~3,为埋深中等的小型煤层气藏。在此基础上,设计了煤层气开发方案,并进行了经济评估。结果表明:煤层气开发各项经济评价指标良好,项目税后财务内部收益率为12.23%,大于财务内部基准收益率8%,税后财务净现值为6 048.03万元,税后投资回收期为6.60年,小于基准投资回收期8年,地面煤层气开发可行;煤层气井排采15 a,单井累计产量达422.64×10~4m~3,采收率达48.94%,相应平均含气量降低为不到8 m~3/t,瓦斯压力降至0.74 MPa左右,可达到区域消突的目的。     

木里煤田侏罗系煤系非常规气共存规律研究

为探索木里煤田煤系气赋存特征,通过含气性、烃源岩有机地化以及储集层物性特征的分析测试,认为煤系气含气量变化较大,以木里组上段含气量最高;总有机碳含量和生烃潜率评价均显示此组煤系烃源岩为优质烃源岩,其中煤为Ⅲ型干酪根,而油页岩、泥岩为Ⅱ2型干酪根,Ro分布在0.74%~1.85%,处于成熟-高成熟度的有利生气阶段;煤储层孔隙度为2.7%~13.7%,渗透率为(0.03~10.6)×10-3μm~2,而页岩及致密砂岩储层孔隙度普遍不高于4.5%,渗透率普遍低于0.1×10~(-3)μm~2。结合典型钻孔分析建立了木里煤田内的3种煤系非常规气共存组合模式。在总结了木里煤田的煤系非常规气的成藏特征基础上,综合分析认为中侏罗统木里组上段以及江仓组是煤系非常规气勘探的重点层段,并进一步提出了勘探开发建议。     

巴基斯坦页岩油气资源潜力分析

作为常规油气资源严重短缺的国家,巴基斯坦国内页岩油气资源丰富,具有极大的开采前景。据EIA最新研究报告显示,巴基斯坦Sembar组和Ranikot组页岩气地质资源量为16.59×10~(12)m~3,风险技术可采资源量2.92×10~(12)m~3;页岩油资源量2270×10~8bbl,技术可采资源量91×10~8bbl。Sembar组页岩厚度为50~800m,埋深一般在1000~5000m。页岩有机质含量(TOC)为0.5%~3.5%(平均为1.4%),有机质类型以Ⅱ和Ⅲ型为主,成熟度(Ro)为0.3~1.6,页岩脆性矿物含量较高,利于水平钻井压裂。Ranikot组页岩成熟度相对较低,TOC大于2%的页岩的成熟度仅为0.7%~1%,刚进入生油阶段,尚未进入能形成大气田的生气阶段。虽然,目前尚未对Patala组页岩进行有效的资源评价,但初步估计该组的页岩油气资源具有巨大的潜力。与中美页岩相比,巴基斯坦页岩在资源量和开发成本上都具有独特的优势条件。     

气相示踪技术在延长油田特低渗透油藏CO2驱中的应用

针对延长油田乔家洼油区个别油井出现气窜且CO_2气体来源方向不明确的问题,以45543-09井为注入井开展了六氟化硫气体示踪剂现场监测,并对监测结果进行了数值分析,同时以气相示踪剂监测结果为依据将现场CO_2驱油调整为水气交替注入。监测和分析结果表明:45543-01井、45545井和乔46-01井、乔46-02井与注入井间分别存在1个优势通道和2个优势通道,优势通道等效渗透率分别为44.13×10~(-3)μm~2、9.54×10~(-3)μm~2和17.02×10~(-3)μm~2、136.15×10~(-3)μm~2和184.87×10~(-3)μm~2、104.27×10~(-3)μm~2。现场水气交替注入试验表明:45543-01井和乔46-01井取得了较好的增油效果。     

台州滨海工业区浅层地温能资源评价与应用建议

在介绍研究区第四纪地质、水文地质条件的基础上,从浅层地温场、岩土热物性方面分析了台州市滨海工业区浅层地温能赋存特征,评价了滨海工业区地埋管地源热泵系统开发利用适宜性为较适宜,计算了区内浅层地热总容量为2.99×10~(13) kJ/℃,折合标准煤为1.02×10~9 kg,可利用浅层地温能资源为9.21×10~(12) kJ,折合标准煤5.26×10~8 kg。对滨海工业区进行地埋管系统浅层地温能开发潜力评价,结果为:夏季可供制冷面积为4.2×10~6 m~2,冬季可供取暖面积为6.7×10~6 m~2。并结合台州湾循环经济产业集聚区发展规划,提出浅层地温能开发应用建议。     

鄂尔多斯盆地东缘临兴地区煤系气共生成藏特征

随开采技术的不断进步,煤系气共采成为可能,而煤系气共采的前提便是煤系气的共生,所以探讨煤系气共生的问题对共采具有重要意义。通过对鄂尔多斯盆地东缘临兴地区煤系气生储盖特征研究的基础之上,结合岩芯观察及野外地质考察,总结了煤系气的共生组合模式,综合沉积、构造和成岩作用,初步探讨了煤系气共生的成因机制。结果显示:本溪组8+9号和山西组4+5号煤层为主要的烃源岩,暗色泥岩也具有一定的生烃能力;砂岩类型以岩屑砂岩为主,孔隙度平均值6.2%,渗透率平均值0.14×10~(-15)m~2,属于致密砂岩范畴;致密砂岩层、泥页岩层和煤层可以互为盖层;致密砂岩、泥页岩和煤层两两之间的组合模式具有14种,煤系气的共生组合模式具有4种。其中的两种或多种组合,构成了致密砂岩气、页岩气和煤层气的混合共生;沉积作用对煤系气共生的形成具有决定性作用,成岩作用对煤系气的共生具有改造作用。     

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     

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     

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     

唐口煤矿深部复杂开采工作面瓦斯分源涌出规律研究

研究工作面瓦斯涌出规律对工作面瓦斯治理有重要意义。为了得到唐口煤矿深部3号煤层复杂开采条件下工作面回采时期瓦斯涌出时空演化规律,选取6304工作面作为对象,采用实测方法研究6304工作面瓦斯涌出规律。结果表明:6304工作面瓦斯涌出量为6.534 m³/min,其中煤壁占34.27%,落煤占29.62%,采空区占36.11%;沿工作面倾向由低到高,瓦斯浓度整体为上升趋势,其中1—76号架工作面瓦斯浓度小于0.20%,76—102号架瓦斯浓度上升明显,最大为0.387%;上隅角的后部采空区是工作面的瓦斯主要涌出源,上隅角1号测点瓦斯浓度0.78%,上隅角周边3号、5号、7号、8号、9号测点瓦斯浓度平均为0.643%;周期来压时,上隅角瓦斯相对平时较高。研究为针对性的瓦斯分源监控与灾害防治提供基础。