... of British Columbia Vancouver, BC, Canada vkaminski@eos.ubc.ca Alexander Prikhodko Geotech, Ltd Aurora, ON, Canada alexander@geotech.ca Douglas Oldenburg University of British Columbia Vancouver, BC, Canada doug@eos.ubc.ca Summary A low-frequency resistivity survey using ERA electrical profiling (middle...

...Constraining geophysical inversions with geologic information Peter Lelie`vre , Douglas Oldenburg and Nicholas Williams, University of British Columbia Geophysical Inversion Facility SUMMARY Earth models used for mineral exploration should be reliable and consistent with all information available...

... electromagnetics for subsurface fluid flow characterization Carlyle Miller*, Partha Routh and Paul Donaldson, Boise State University, Douglas Oldenburg, University of British Columbia Summary In this paper we present a case history for mapping electrical conductivity using Controlled Source Audio Magnetotellurics...

... real component Characterization of Frequency-Dependent Magnetic Susceptibility in UXO Electromagnetic Geophysics Todd Meglich*, Yaoguo Li, Colorado School of Mines, Len Pasion, Douglas Oldenburg, University of British Columbia, Remke L. Van Dam, Michigan State University, Stephen Billings, Sky...

... – B34 , 10.1190/geo2011-0194.1 . Recovery of compact conductors in 3D voxel inversion of time-domain EM data Dikun Yang , Dominique Fournier, Seogi Kang, Douglas Oldenburg, University of British Columbia SUMMARY 3D voxel inversion sometimes produces a mysterious ring model when inverting strong...

...Estimation of Cole-Cole parameters from time-domain electromagnetic data Laurens Beran and Douglas Oldenburg, University of British Columbia. SUMMARY We present algorithms for the inversion of time-domain elec- tromagnetic data for the parameters of a Cole-Cole model (conductivity, time constant...

... On recovering induced polarization information from airborne time domain EM data Seogi Kang , Douglas W. Oldenburg, Dikun Yang, David Marchant, Geophysical Inversion Facility, University of British Columbia SUMMARY In this paper we propose a methodology to generate a 3D dis- tribution of pseudo-chargeability...

... and Douglas W. Oldenburg Geophysical Inversion Facility, University of British Columbia SUMMARY Steam Assisted Gravity Drainage (SAGD) is a proven tech- nology to extract heavy oil from the Athabasca oil sands in Alberta, Canada. Research and pilot programs have shown the growth in steam chambers can...

... , ed. , Electromagnetic methods in applied geophysics : SEG . Multiple body parametric inversion of frequency- and time-domain airborne electromagnetics Michael S. McMillan , Christoph Schwarzbach, Eldad Haber and Douglas W. Oldenburg, Geophysical Inversion Facility - University of British...

... , 64 , 89 – 109 , 10.1007/BF00875535 . Cooperative Magnetic Inversion Dominique Fournier , Kristofer Davis and Douglas W. Oldenburg, UBC-Geophysical Inversion Facility SUMMARY The effect of remanence has long been recognized as an ob- stacle for the interpretation and modeling of magnetic...

... – 936 , 10.1190/segam2015-5870407.1 . 3D DC resistivity modeling of steel casing for reservoir monitoring using equivalent resistor network Dikun Yang , Douglas W. Oldenburg, and Lindsey J. Heagy, Geophysical Inversion Facility, University of British Columbia SUMMARY Energized steel casings...

... of airborne EM surveys : Case study for oil sands exploration near Fort McMurray, Alberta: First Break , 31 , 81 – 85 . From exploration to reclamation: using EM methods at SAGD sites in the Athabasca oil sands Sarah G. R. Devriese and Douglas W. Oldenburg Geophysical Inversion Facility...

... discontinuous coefficients : Journal of Computational Physics , 223 , 783 – 796 , 10.1016/j.jcp.2006.10.012 . Haber , E. , E. Holtham , J. Granek , D. Marchant , D. Oldenburg , C. Schwarzbach , and R. Shekhtman , 2012 , An adaptive mesh method...

..., and their significance to kimberlite exploration : Initial results: Current Research 2001-C8, Geological Survey of Canada . Robust and flexible mixed-norm inversion Dominique Fournier , Kristofer Davis and Douglas W. Oldenburg, UBC-Geophysical Inversion Facility SUMMARY In this paper, we propose a robust mixed...

... sampling rate is not sufficiently dense. Our future work will focus on how to use 3D-inversion in practical situations with ground and airborne data. Figure 6: Euler solutions from synthetic airborne Gzz. Solution clusters shown in yellow and orange. References Yaoguo Li and Douglas Oldenburg, 1998, 3-D...

... vector inversion applied geoscience energy 10 upstream oil & gas magnetization approximation amplitude oldenburg exploration geophysicist information underestimate Comparison of magnetic vector inversion with sparse norm susceptibility inversion accounting for demagnetization John M...

...-geology model equation geological rule Implementing geological rules within geophysical inversion: A PGI perspective Thibaut Astic , Douglas W. Oldenburg, and Lindsey J. Heagy Geophysical Inversion Facility, Department of Earth, Ocean and Atmospheric Sciences, The University of British Columbia...

... Location: 360C Presentation Type: Oral geophysical capacity building kevin fan national drd mon state drd upstream oil & gas dc survey seg international exposition reservoir characterization capacity building participant oldenburg drd exploration geophysicist 10 inversion myanmar...

... items and clutter. Multi- component time-domain electromagnetic (TDEM) systems have (2) proven to be well-suited for this task (cf. Bell et al. (2001); Pa- sion and Oldenburg (2001); Zhang et al. (2003); Billings et al. Bell et al. (2001). It depends upon the strength of the primary (2010 magnetic eld...

.... McClymont, A., P. Bauman, C. Miazga, E. Johnson, and C. Slater, 2018, Emergency response groundwater exploration at rohingya refugee camps in Bangladesh: CSEG Recorder, 43, 12 18 (Library Catalog: csegrecorder.com). Oldenburg, D.W., L. J. Heagy, S. Kang, D. Cowan, J. Capriotti, R. Fan, and M. Maxwell, 2020...