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121.
基于GIS的地热资源与环境管理信息系统的研制 总被引:2,自引:0,他引:2
如何实现地热资源的可持续开发与利用,保证资源与环境协同发展,已经成为一个亟待解决的问题。将GIS与地热工程分析相结合,借助信息技术,建立了地热资源与环境管理信息系统,这一系统的特点就是以长观数据与地热工程分析结果作为数据源,将信息化管理和科学决策结合在一起,实现集信息管理,资源评价与科学决策为一体的信息系统。 相似文献
122.
介绍了北京昌平地震台 TJ- 1型钻孔体积应变仪 1 989年 7月~ 2 0 0 0年 1 2月期间的观测结果 ,分析了潮汐响应函数的动态特征及其稳定性。由全序列观测数据调和分析所得 :O1波潮汐因子 VO1=0 .791 6± 0 .0 1 2 8、相位滞后 ΔΦ0 1=1 .9°;K1波潮汐因子 Vk1=0 .6 4 42±0 .0 0 88、相位滞后ΔΦk1=- 4.2°;M2 波潮汐因子 VM2 =0 .6 5 0 0± 0 .0 0 3 8、相位滞后ΔΦM2 =-2 .9°。液态地核振荡因子 A=VO1/VK1=1 .2 2 8,比理论值小 6 .5 %。 相似文献
123.
盆地超压层段非幕式突破期的地热场模型数值解法 总被引:4,自引:0,他引:4
盆地超压层段的地热场模拟对超压成因研究及油气生成,排放机理分析有重要意义,但求解超压层段的热传递方程的数值解法至今仍没有被很好地解决,问题的关键在于确定超压流体速度场,由于超压流体发生幕式突破之前的排出速率极低,其速度场v=vxi vzk近似满足条件Эux/Эx Эuz/Эz=0,可将其近似地视为稳定的不可压缩的无源流体,利用这一条件及相应的边界压力条件,可使整个计算过程得到简化,在此基础上所建立的地热场模型有限元数值解法和模拟软件,能够实现对含油气盆地在幕式突破之前的超压层段地热场进行动态模拟。 相似文献
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125.
苏南地区地热资源研究 总被引:2,自引:0,他引:2
在充分收集区域地质,水文于质,物化探及地热资料的基础上,分析了苏南地区地下热水的形成和赋存的背景,条件,规律及特征,并进行地下热水的划分与预测,为进一步的研究,勘察,开发提供的依据。 相似文献
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128.
Wu Fu-chun Song Li-sheng Zhu Xing-guo Wang Feng Jing Bei-ke Dong Xing-hong Fang Wei Zuo Yong-qing 《地震学报(英文版)》2001,14(4):434-439
Based on the analysis of the induced earthquakes in China and abroad, we get some ideas about earthquakes induced by pumping
water out of a well or injecting water into a well. The induced earthquakes usually occur near the well, and they are generally
small earthquakes. The earthquake sources are shallow, and they belong to the main shock-after shock type of earthquake or
the swarm-type of earthquake. The magnitude and the quantity of the induced earthquakes obviously depend on the pressure and
the quantity of water pumped or injected. These earthquakes happen as soon as pumping or injecting occurrence, or after ten
or twenty days, they may occur at the time of injecting mud or injecting high pressure water when a well is being drilled,
or at the time when the ground water is being normally exploited. A large quantity of hot water has been exploited since 1990
in Xi’an, and the quantity of water exploited has been increasing year by year, as a result the groundwater level has been
dropping with the water pumped out and the water level is high in summer and low in winter. The earthquakes in Xi’an region
belong to the solitary-type and they spread outside Xi’an city where the wells are concentrated but no earthquake happens.
The seismic frequency and the energy released have no relation with the quantity of water exploitation or the water level
in the well. It is considered that geothermal exploitation does not induce earthquakes in and around Xi’an because of its
specially geological condition.
Foundation item: Project sponsored by the Landslide Office of Shaanxi Province and Society of Disaster Reduction of Shaanxi Province. 相似文献
129.
Strain and tilt changes measured during a water injection experiment at the Nojima Fault zone, Japan 总被引:2,自引:0,他引:2
Kunio Fujimori Hiroshi Ishii Atsushi Mukai Shigeru Nakao Shigeo Matsumoto Yasuhiro Hirata 《Island Arc》2001,10(3-4):228-234
Abstract In order to make geophysical and geological investigations of the Nojima Fault on Awaji Island, Japan, three boreholes measuring 1800 m, 800 m and 500 m deep were drilled into the fault zone. The fault is one of the seismic source faults of the 1995 Hyogo-ken Nanbu earthquake of M 7.2. A new multicomponent borehole instrument was installed at the bottom of the 800 m borehole and continuous observations of crustal strain and tilt have been made using this instrument since May 1996. A high-pressure water injection experiment within the 1800 m borehole was done in February and March 1997 to study the geophysical response, behavior, permeability, and other aspects of the fault zone. The injection site was located approximately 140 m horizontally and 800 m vertically from the instrument. Associated with the water injection, contraction of approximately 0.7 × 10−7 str (almost parallel to the fault) and tilt of approximately 1 × 10-7 rad in the sense of upheaval toward the injection site were observed. In addition to these controlled experiments, the strainmeter and tiltmeter also recorded daily variations. We interpret strain and tilt changes to be related to groundwater discharge and increased ultra-micro seismicity induced by the injected water. 相似文献
130.