Mantle-derived magmatic gas releasing features at the Rehai area, Tengchong county, Yunnan Province, China

This paper deals with the chemical and isotopic compositions of escaped gases from the Rehai geothermal area in Tengchong county of Yunnan Province. Results indicate that there is the mantle-derived magmatic intrusion in shallow crust at this area. Modern mantle-derived magmatic volatiles are being released currently in a steady stream by way of active faults. The escaped gases are mostly composed of CO₂, together with subordinate amounts of H₂S, N₂, H₂, CH₄, SO₂, CO and He. At the studied area, the north-south directed fault is the deepest, and it may be interlinked with the deep-seated thermal reservoir that would be directly recharged by the mantle-derived magmatic volatile. The He, C isotopic evidence reveals that the modern active magma beneath Rehai area may originate from the historical mantle-derived magma which caused the latest eruptive activity of volcanoes in that region.     

湘中地区岩溶发育规律及钻孔堵漏研究

介绍了湘中地区岩液发育的基本规律,以及利用岩溶发育规律指导钻孔堵的方法和工程实例。     

涿州地热资源及开发利用前景

系统介绍了涿州地区地层,构造,分析了涿州热田地热地质条件,估算了地热（水）资源量,对该区地热能利用提出了建议。     

沧州地区地热开发利用规划

本文作者通过对沧州地区以往资料的分析 ,论述了该区地热资源概况 ,结合当地社会环境和区位优势 ,对地热资源的合理开发利用进行了规划。     

Occurrence of Almandine, and Its Implications for Ancient High Temperature Activity of the Orakeikorako Geothermal Field, Taupo Volcanic Zone, New Zealand

Abstract: Exploration drilling at Orakeikorako provides information on the hydrologic and thermal regime of the geothermal system, which is presently as high as 265C. The presence of almandine in Drillhole OK–1, at 1312. 5m drilled depth, is the only known occurrence of hydrothermal garnet in an active geothermal system from New Zealand. The formation temperature of the almandine, is not consistent with measured (bore) temperatures, but does coincide with fluid inclusion data and temperatures inferred from other secondary minerals, which suggest it formed at >240C, and possibly as much as 310C. Almandine is an important mineral geothermometer in active hydrothermal systems, and implications for its occurrence should not be discounted in fossil (mineralised) epithermal-type hydrothermal systems.     

数字钻孔摄像在小浪底帷幕灌浆检测孔中的应用

为了评价帷幕灌浆效果,将数字钻孔摄像技术应用到小浪底水利枢纽3号灌浆洞3个灌浆质量检查孔中。通过数字钻孔摄像得到的孔壁图像资料, 对钻孔内发育的节理裂隙、破碎带和砂浆充填情况进行了分析研究,结果表明：?灌浆时浆液在外压下,主要沿连通性较好、延伸较远的裂隙向孔外岩体渗透。与渗流路径相连通的裂隙或延伸较短的裂隙,被浆液直接充填凝固后形成水泥结石。与渗流路径没有连通的裂隙则被忽略,或在灌浆压力下劈裂而部分充填,造成全充填、半充填和砂浆流出等几种充填效果;?破碎带充填与否主要与破碎带的规模、性质和与灌浆洞连通性有关。小浪底水利枢纽3号灌浆洞内的灌浆效果是明显的;将数字钻孔摄像技术应用于检查帷幕灌浆质量,分析灌浆浆液渗流路径,也是可行的。     

正交各向异性岩体孔径变形法的二维地应力分析方法改进

根据正交各项异性材料的弹性理论,推导出偏轴坐标系下的三维、二维本构方程;利用应力变分法对钻孔周围的应力分布作出修正,进一步得出孔壁径向位移的计算公式。结合孔径变形法测量地应力的特点,建立正交各向异性岩体地应力的分析理论,通过一典型工程与传统的各向同性理论进行了对比。     

Unconventional Energy Resources and Geospatial Information: 2006 Review

This article contains a brief summary of some of the 2006 annual committee reports presented to the Energy Minerals Division (EMD) of the American Association of Petroleum Geologists. The purpose of the reports is to advise EMD leadership and members of the current status of research and developments of energy resources (other than conventional oil and natural gas that typically occur in sandstone and carbonate rocks), energy economics, and geospatial information. This summary presented here by the EMD is a service to the general geologic community. Included in this summary are reviews of the current research and activities related to coal, coalbed methane, gas hydrates, gas shales, geospatial information technology related to energy resources, geothermal resources, oil sands, and uranium resources.

莱芜市冷家庄地热田地质特征浅析

莱芜市冷家庄地热田地热资源类型属层状兼带状,热源为高庄-冷家庄断裂沟通导热,盖层是第四系、古近系、石炭-二叠系。热储层为奥陶纪灰岩,该热储层顶板埋深2 100m左右,热储层厚度由南向北逐渐增大,地热流体中富含氟、锶、偏硅酸等微量元素,为结垢非常严重,锅垢很多的腐蚀性水。经计算,奥陶纪热储层单井可采资源量为7.83×105 m3/a。     

威海市环翠区浅层地热能开发利用适宜性分区研究

浅层地热能资源作为一种可再生、环保、清洁、储量巨大的新型能源资源,逐渐被人们认识、接受和重视。该文选取层次分析法、综合指数法为主要研究方法,对威海市环翠区进行了浅层地热能适宜性分区,为威海市环翠区更好的开发利用浅层地热能资源提供了重要的依据。