Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Oldenburg, Douglas"'
Electromagnetic methods are increasingly being applied in settings with steel infrastructure. These include applications such as monitoring of CO2 sequestration or even assessing the integrity of a wellbore. In this paper, we examine the impacts of t
Externí odkaz:
http://arxiv.org/abs/2211.14677
Publikováno v:
Leading Edge, 40(2), 140-148 (2021)
Geophysical electromagnetics (EM) plays an important role in mineral exploration and is increasingly being used to help solve other problems of relevance to society. In this article we reflect, from our perspective at University of British Columbia (
Externí odkaz:
http://arxiv.org/abs/2203.13931
Publikováno v:
FastTIMES, 26.4 (2022)
In addition to reducing anthropogenic emissions of CO$_2$, it is increasingly clear we also need to remove CO$_2$ from the atmosphere in order to avoid some of the worst case scenarios for climate change. Geologic sequestration of CO$_2$ is among the
Externí odkaz:
http://arxiv.org/abs/2203.13894
Publikováno v:
The Leading Edge, 41(2), 83-92 (2022)
Electrical and electromagnetic (EM) methods can be diagnostic geophysical imaging tools for monitoring applications, such as carbon capture and storage or hydraulic fracturing. In these settings, it is common that steel-cased wells and other steel in
Externí odkaz:
http://arxiv.org/abs/2110.00863
Publikováno v:
Geophysical Journal International, 224(1), 40-68 (2020)
In a previous paper, we introduced a framework for carrying out petrophysically and geologically guided geophysical inversions. In that framework, petrophysical and geological information is modelled with a Gaussian Mixture Model (GMM). In the invers
Externí odkaz:
http://arxiv.org/abs/2002.09515
The potential for extracting and interpreting induced polarization (IP) data from airborne surveys is now broadly recognized. There is, however, still considerable discussion about the conditions under which the technique can provide knowledge about
Externí odkaz:
http://arxiv.org/abs/1909.12993
Publikováno v:
Exploration Geophysics, 51(1), 25-37 (2020)
Electromagnetics has an important role to play in solving the next generation of geoscience problems. These problems are multidisciplinary, complex, and require collaboration. This is especially true at the base scientific level where the underlying
Externí odkaz:
http://arxiv.org/abs/1902.08245
Publikováno v:
Exploration Geophysics, 51(1), 38-44 (2020)
Inversions of airborne EM data are often an iterative process, not only requiring that the researcher be able to explore the impact of changing components such as the choice of regularization functional or model parameterization, but also often requi
Externí odkaz:
http://arxiv.org/abs/1902.08238
Publikováno v:
In Journal of Applied Geophysics April 2023 211
The work in this paper is motivated by the increasing use of electrical and electromagnetic methods in geoscience problems where steel-cased wells are present. Applications of interest include monitoring carbon capture and storage and hydraulic fract
Externí odkaz:
http://arxiv.org/abs/1810.12446