Chris Nind
Vice President - Business Development
Abitibi Geophysics / AGT / Nomad Geo Services
Speaker profile
Chris Nind is a Toronto based senior geophysicist and the Vice President of Abitibi Geophysics. He was the General Chair of the Exploration ’17 conference in Toronto in October 2017, and a past President of the Canadian Exploration Geophysical Society. Since graduating in 1977 from Queen’s University with a BSc in mathematics, he has worked as a geophysicist with Geoterrex, Dighem and Fugro Airborne Surveys in various management positions. From 2004 to 2013, he was the President & CEO of Scintrex Ltd. He joined Abitibi Geophysics in November 2017. He has authored and co-authored numerous technical papers on exploration geophysics and presented papers at many international conferences.
Presentation summary
Intelligent Exploration – Going Deeper with IP and EM
Induced Polarization is measured using array configurations based on the target. To increase depth of investigation, the dipole separation (a-spacing) can be increased, with a loss in resolution. Models show that the depth of investigation can be increased without losing resolution by increasing the n-spacing rather than the a-spacing. New IP systems and field techniques deliver good signal to noise in data recorded with the same a-spacing at much larger n-spacings. When inverted, the depth of exploration is significantly increased. Two recent IP case studies will be presented.
Time Domain Electromagnetics with good resolution at depth across a wide range of conductivities requires a large dipole moment and a receiver that measures both B and dB/dt simultaneously. Field techniques and a new coil based multi-axis sensor with noise levels comparable to a HT SQUID have been successfully introduced. Two case histories will be presented.
