地—井瞬变电磁关键技术问题研究
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摘要
地—井瞬变电磁法在加拿大、澳大利亚等国的勘查实践中已取得了很好的效果,国内由于缺乏从仪器设备到资料处理解释的整套技术,使得该方法未能被广泛应用。为此,研制了地—井瞬变电磁仪器,同时系统地研究了地—井三分量坐标系的确定、探头角度系统偏差的测定、三分量的校正运算、勘查目标体方位及距离的分析与计算等,并在实际的地—井瞬变电磁观测中获得了良好的应用效果。
Surface-borehole TEM method has achieved good results in exploration in Canada and Australia. Due to the lack of complete technology from equipment to data processing and interpretation,the method has not been widely used in China. The authors developed the surface-borehole TEM instrument and,at the same time,systematically studied the determination of the three component coordinates of the surface-borehole TEM,the measurement of the deviation of the probe angle,the correction of the three components,and the analysis and calculation of the orientation and distance of the target body,which achieved good application results in actual measurement.
Surface-borehole TEM method has achieved good results in exploration in Canada and Australia. Due to the lack of complete technology from equipment to data processing and interpretation,the method has not been widely used in China. The authors developed the surface-borehole TEM instrument and,at the same time,systematically studied the determination of the three component coordinates of the surface-borehole TEM,the measurement of the deviation of the probe angle,the correction of the three components,and the analysis and calculation of the orientation and distance of the target body,which achieved good application results in actual measurement.
引文
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[5]张杰,邓晓红,谭捍东,等.地—井瞬变电磁资料矢量交会解释方法[J].物探与化探,2015,39(3):572-579.Zhang J,Deng X H,Tan H D,et al. A study of vector intersection for borehole transient electromagnetic method[J]. Geophysical and Geochemical Exploration,2015,39(3):572-579.
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[8]李建慧,刘树才,焦险峰,等.地—井瞬变电磁法三维正演研究[J].石油地球物理勘探,2015,50(3):556-564.Li J H,Liu S C,Jiao X F,et al. Three-dimensional forward modeling for surface-borehole transient electromagnetic method[J].Oil Geophysical Prospecting,2015,50(3):556-564.
[9] Xue G Q,Qin K Z,Li X,et al. Discovery of a largescale porphyry molybdenum deposit in tibet through a modified TEM Exploration Method[J]. JEEG,2012,17(1):19-25.
[10] Guo J L,Zeng Y Q,Li X. Numerical simulation analysis of surface-to-borehole TEM based on the finite difference method[C]//International Workshop and Gravity,Electrical&Magnetic Methods and their Applications,2015:115-118.
[11] Swidinsky A,Nabighian M. On smoke rings produced by a loop buried in a conductive half-space[J]. Geophysics,2015,80(4):E225-E236.
[12] Annetts D. Inversion of surface and downhole electromagnetic data for a 3D earth[C]//22nd ASEG Geophysical Conference,Extended Abstracts,2012:1-3.
[13] Buselli G,Lee S K. Modelling of drill-hole TEM response from multiple targets covered by a conductive overburden[J]. Exploration Geophysics,1996,27(3):141-153.
[14] Gao J,Zhao A B,Peng F,et al. Inversion of array induction logs and its application[J]. Petroleum Science,2007,4(3):31-45.
[15] Hughes N A,Ravenhurst W R. Three componet DHEM surveying at balcooma[J]. Exploration Geophysics,1996,27:77-89.
[2]杜庆丰.瞬变电磁(TEM)数据组合滤波[J].地质与勘探,2002,38(s):129-131.Du Q F. TEM data composite filter[J]. Geology and Prospecting,2002,38(s):129-131.
[3]黄跃,沈钟,冯晓兰,等. TEM井中磁探头的校准装置及校准方法:发明专利证书号第2231480号[P].2016-09-07.Huang Y,Shen Z,Feng X L,et al. Calibration device and calibration method of surface-borehole TEM magnetic probe:Invention Patent Certificate No.2231480[P].2016-09-07.
[4]中国地质科学院地球物理地球化学勘查研究所.地—井瞬变电磁(TEM)三分量校正软件1.0:软著登字第0663591号[CP].2013-12-26.Institute of Geophysical and Geochemical Exploration. Surfaceborehole TEM three-component correction software 1.0:Computer software copyright registration No.0663591[CP]. 2013-12-26.
[5]张杰,邓晓红,谭捍东,等.地—井瞬变电磁资料矢量交会解释方法[J].物探与化探,2015,39(3):572-579.Zhang J,Deng X H,Tan H D,et al. A study of vector intersection for borehole transient electromagnetic method[J]. Geophysical and Geochemical Exploration,2015,39(3):572-579.
[6]武军杰,李貅,智庆全,等.电性源地—井瞬变电磁法三分量响应特征分析[J].地球物理学进展,2017,32(3).Wu J J,Li X,Zhi Q Q,et al.Analysis of three component TEM response characteristic of electric source dill hole TEM[J]. Progress in Geophysics(in Chinese),2017,32(3).
[7]孟庆鑫,潘和平,牛峥.大地介质影响下地—井瞬变电磁的正演模拟分析[J].中国矿业大学学报,2014,43(6).Meng Q X,Pan H P,Niu Z. Forward simulation of surface-borehole TEM in geological medium effect[J].Journal of China University of Mining&Technology,2014,43(6).
[8]李建慧,刘树才,焦险峰,等.地—井瞬变电磁法三维正演研究[J].石油地球物理勘探,2015,50(3):556-564.Li J H,Liu S C,Jiao X F,et al. Three-dimensional forward modeling for surface-borehole transient electromagnetic method[J].Oil Geophysical Prospecting,2015,50(3):556-564.
[9] Xue G Q,Qin K Z,Li X,et al. Discovery of a largescale porphyry molybdenum deposit in tibet through a modified TEM Exploration Method[J]. JEEG,2012,17(1):19-25.
[10] Guo J L,Zeng Y Q,Li X. Numerical simulation analysis of surface-to-borehole TEM based on the finite difference method[C]//International Workshop and Gravity,Electrical&Magnetic Methods and their Applications,2015:115-118.
[11] Swidinsky A,Nabighian M. On smoke rings produced by a loop buried in a conductive half-space[J]. Geophysics,2015,80(4):E225-E236.
[12] Annetts D. Inversion of surface and downhole electromagnetic data for a 3D earth[C]//22nd ASEG Geophysical Conference,Extended Abstracts,2012:1-3.
[13] Buselli G,Lee S K. Modelling of drill-hole TEM response from multiple targets covered by a conductive overburden[J]. Exploration Geophysics,1996,27(3):141-153.
[14] Gao J,Zhao A B,Peng F,et al. Inversion of array induction logs and its application[J]. Petroleum Science,2007,4(3):31-45.
[15] Hughes N A,Ravenhurst W R. Three componet DHEM surveying at balcooma[J]. Exploration Geophysics,1996,27:77-89.