Technology and application of environmental and engineering geophysics : selected papers of the 7th International Conference on Environmental and Engineering Geophysics, ICEEG-Beijing 2016 / Qingyun Di, Guoqiang Xue, Jianghai Xia, editors.

1 Application Research of Ant-Tracking Technology Based on Spectral Decomposition in Xingdong Mine; Abstract; 1 Introduction; 2 Theory and Method; 2.1 Spectral Decomposition; 2.2 Ant-Tracking; 2.3 The Ant-Tracking Based on Spectral Decomposition; 3 Examples; 4 Conclusions; References; 2 Definition and Improved Algorithm of All-Time TEM Apparent Resistivity; Abstract; 1 Introduction; 2 Definition and Algorithm in Half-Space; 3 Definition and Algorithms in Whole-Space; 4 Synthetic Test; 5 Conclusions; Acknowledgment; Reference

3 The Fast Imaging of Metal Pipe Exploration Using TEM MethodAbstract; 1 Introduction; 2 Imaging System; 3 Setting Main Parameters; 4 Dynamic Imaging Picture Show; 5 Conclusion; 4 Absorbing Quality Factor Attribute for Recognising Ordovician Cave and Underground River System in Tahe Oilfield; Abstract; 1 Introduction; 2 Theory and Method; 2.1 Frequency Attenuation; 2.2 Quality Factor; 2.3 Seismic Attributes; 3 Example; 3.1 AQF Attribute Section; 3.2 Similarity and AQF; 3.3 3D Carving Technology and Well Testing; 3.4 Prediction of Underground River; 4 Conclusions; References

5 Research on Induced Polarization Relaxation Properties of Sand SampleAbstract; 1 Introduction; 2 Micro Mechanisms of Induced Plorization Relaxation Properties of Aquifers and Sample; 3 Experimental Method; 4 Exploriment Result and Analysis; 5 Conclusion; References; 6 The Trust Region Method for Time-Domain Full Waveform Inversion; Abstract; 1 Introduction; 2 Theory and Methods; 2.1 Mathematical Model; 2.2 Algorithm; 2.3 Numerical Results; 3 Conclusion; Acknowledgments; References; 7 Research on the Channel Wave Field Characters of Goaf in Coal Mine and Its Application; Abstract

1 Introduction2 Theory and Method; 2.1 Theory; 3 Method; 3.1 Goaf Channel Wave Forward Simulation; 3.2 Research on Characteristics of Goaf Spectrum; 4 Examples; 5 Conclusions; Acknowledgments; References; 8 The Study of Well Logging Sedimentary Microfacies in Tengge'er Formation Baiyinchagan Depression; Abstract; 1 Introduction; 2 Rock-Electricity Response; 3 Well Logging Facies Model; 3.1 The Sedimentary Facies Types; 3.2 The Establishment of the Electrofacies Mode; 4 The Analysis of Single Well Logging Sedimentary Microfacies; 5 Conclusion; References

9 Improvement on AVO Equations in VTI MediaAbstract; 1 Introduction; 2 Theory and Method; 2.1 Approximate Polarization Equations in VTI Media; 2.2 AVO Equations in VTI Media; 3 Examples; 4 Conclusions; Acknowledgments; References; 10 Determination of the Conversion Point for P-SV Wave of Horizontal Interface Under Rugged Surface; Abstract; 1 Introduction; 2 Method; 3 Conclusions; Acknowledgment; References; 11 The Study of Anti-noise Immunity for Electromagnetic Method Based on m Pseudo-random Sequence; Abstract; 1 Introduction; 2 Theory and Method; 3 Example; 4 Conclusion; References