Cooperative Inversion: A Review

Brett Harris; Andrew Pethick; Ralf Schaa; Le Van Anh Cuong

doi:10.1071/ASEG2018abM1_1F

1st Australasian Exploration Geoscience Conference – Exploration Innovation Integration

ISSN: 2202-0586
E-ISSN:

oa Cooperative Inversion: A Review
Authors Brett Harris^a, Andrew Pethick^b, Ralf Schaa^c and Le Van Anh Cuong^d
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^a DET CRC/Curtin University, Perth, WA, [email protected] ^b DET CRC/Curtin University, Perth, WA, [email protected] ^c DET CRC/Curtin University, Perth, WA, [email protected] ^d DET CRC/Curtin University, Perth, WA, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2018, Issue 1st Australasian Exploration Geoscience Conference – Exploration Innovation Integration, Dec 2018, p. 1 - 3
DOI: https://doi.org/10.1071/ASEG2018abM1_1F
- Published online: 01 Dec 2018

Abstract

Cooperative inversion has the potential to significantly improve subsurface imaging. However, success or failure can be highly dependent on knowledge of underlying site specific geological and petrophysical relationships. Combinations of structural or textural seismic attributes can be integrated into geostatistical clustering to provide a framework able to carry inversion of lower resolution EM or potential field data to an outcome with improved detail and accuracy. Cross-gradient type methods link direction of change of different physical parameters within inversion. Outcomes will be dependent on the presumption that the direction of change of petrophysical parameters like velocity, density and electrical conductivity are indeed linked. Cooperative and joint inversion need to be validated by information harvested at drill sites. Here new low cost multi-scale, multi-parameter logging while drilling technologies could be designed to feed real time imaging based on cooperative inversion. We will; (i) examine theoretical possibilities, (ii) give examples of practical successes and failures, and (iii) consider the future of cooperative inversion.

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