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文章简要叙述了我国地热资源开发的历史与现状。苏南地区正处于地热快速发展阶段,本文以江苏省溧阳市戴埠镇戴南村的一眼1788.18m地热井的勘探为例,详细阐述了花岗岩地区的深部地热资源的开发利用,必须要充分分析区域地质构造以及地热地质条件,合理布置地球物理勘探,综合解译物探成果。物探的关键是深部地层是否有节理裂隙发育,可控源音频大地电磁测深技术是行之有效的前期勘查方法,判断断层的位置和走向。地热井施工采用先期成井工艺,坚硬地层结合螺杆钻进技术,增大钻探效率,目的层钻孔直径为216mm,三开裸眼终孔成井,洗井采用焦磷酸钠和草酸浸泡,大功率空压机物理洗井,效果较好。此地热井为今后花岗岩地区构造裂隙地热资源的勘探提供参考。 相似文献
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扶风县城位于渭河盆地咸礼凸起西部,地热资源包括新生界碎屑岩类孔隙型地热资源和下古生界碳酸盐岩类岩溶型地热资源,地热资源条件较好。以扶风佛文化休闲产业园R2地热井为研究对象,采用钢齿牙轮钻头、PDC钻头和镶齿牙轮钻头分别对新生界松散地层和下古生界碳酸盐岩地层进行钻进,建立成井深度为1 900m的二级成井结构,对区域地热资源条件与成井工艺进行研究,结果可知:该地热井取用的新近系上新统蓝田-灞河组热储层、中新统高陵群热储层和下古生界奥陶系热储层为目的层,取水段为923. 3~1 874. 2 m,经产能测试,该井抽水降深40. 8 m时,出水量64. 11 m^3/h,井口水温66℃。按GB/T11615-2010《地热资源地质勘查规范》,扶风县城地热资源属于较适宜开采区;地热资源温度分级属于热水,可用于采暖、理疗、洗浴、温室等;地热水中氟、偏硼酸、偏硅酸、氡等矿物含量具有医疗价值,其中氟含量达到命名矿水浓度,可命名为氟水,具有较高的理疗价值。 相似文献
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砂岩孔隙型地热资源高效勘查成井 总被引：3，自引：0，他引：3
本文以临清御临苑地热井的勘查成井工作为例,分析水热型砂岩孔隙型地热资源的高效勘查及钻井成井工艺,以期为本区及类似区地热资源的高效勘查开发利用提供一些思路。前期通过收集分析有关资料大致了解地热地质条件,选择视电阻率测深研究隐伏地层及断裂特征,推测有利的地热成矿区;再通过大地电场岩性测深了解不同点位的含水层厚度及深度,优选地热井点位;根据地层及其岩性特征选择不同的钻具组合及配置适当的泥浆进行钻进,结合多参数测井确定成井结构和适宜的封固止水完井工艺,总共耗时68天,最后获得了一口水温较高、水量较大、质量优良的较大口径地热探采井,达到了经济高效勘查成井的目的。 相似文献
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河北省邯邢东部平原区（冀南凹陷）地热资源的利用与开发 总被引：1，自引：0，他引：1
邯邢东部平原区温增温率3℃／100m，被任为是不宜开采利用的“非地热异常区”。但近几年来在该区已成功施工了井深1500～1800m的探采结合地热井拾余口，井口出水温度达50℃以上，证实了邯邢东部平原区地热开发利用前景广阔。根据该区域地热条件背景及地热资源赋存特点，结合该区近几年地热探采施工体会，对地热井成井工艺和合理开发利用地热资源的提出了有益见解，对类似平原区地热资源的开发利用具有一定的启发和借鉴意义。 相似文献
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南宁市九曲湾地热井是广西首眼深层地热井,也是广西第一口以深部下第三系细砂岩为主要取水段的地热探采结合井,该井的实施填补了广西在无地热异常显示尤其是热储层分布不连续的新生代沉积盆地型地热资源开发的空白.着重介绍了该井的施工成井工艺. 相似文献
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在资料收集、野外地质、地温调查及现场地面物探工作的基础上,对山东省蓬莱市村里集镇黄泥沟村地区地热地质条件进行综合研究,分析了地热资源的开采前景,目的是基本查明工作区内的断裂构造、地层层序、热储分布、热储埋深、热储温度,预测地热井的成井条件,为地热资源开发利用总体规划及进一步勘探提供依据。分析内容包括地质构造条件、地温场特征、地球物理特征以及热储特征。认为工作区具备开发地热资源的前景条件,地热井成井深度在1500m左右时可获得30℃~40℃的热水。建议投入施工一眼探采结合井,井深设计1500m,井位选择于1000~1200m钻遇NE向断裂下盘,可获得较完善的地热资源赋存信息。 相似文献
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青海省贵德县(盆地)地热资源的开发利用 总被引：1，自引：0，他引：1
本文以贵德盆地地热地质条件为背景,结合贵德盆地多年的地热探采积累的资料,论述该盆地地热资源赋存特点,并对地热成井工艺和对地热的合理的开发利用提出了见解,对类似山间盆地地热资源的开发利用具有一定的借鉴意义。 相似文献
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Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco. 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
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The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species. 相似文献
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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.) 相似文献
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正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology, 相似文献
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正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.) 相似文献
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正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se- 相似文献
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正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with 相似文献