【作者】 底青云； 王若； 石昆法； 李英贤；

【Author】 DI Qingyun WANG Ruo SHI Kunfa LI Yingxian (Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029)

【机构】 中国科学院地质与地球物理研究所；

【摘要】 北京城区及近郊强干扰区的地热勘探具有挑战性。本文简要介绍了北京地热赋存的地质环境与条件,阐述了可控源音频大地电磁法(CSAMT)在北京强干扰区深层地热探测中的方法技术,尤其是输出功率、工作频率范围、发射偶极长度、测点间距等参数的选择技巧,总结了应用效果,给出了应用实例。更多还原

【Abstract】 Geothermal exploration in urban and suburban Beijing areas is a challenging task because of the high-level ambient noises.The paper summarizes several successful applications of the CSAMT method to geothermal exploration in the Beijing area.By carefully selecting the output power,operating frequency,transmitter length,and receiver spacing,we were able to accurately locate geothermal reservoirs deeper than 2000 meters.In the Beijing area,the CSAMT is particularly useful in locating hot - water - bearing faults.更多还原