Development and application of multidisciplinary workflows for geologically and/or petrophysically constrained geophysical inversion

Jeremie Giraud

doi:10.26182/5c6f6cd5c09c6

Development and application of multidisciplinary workflows for geologically and/or petrophysically constrained geophysical inversion

Jeremie Giraud

School of Earth Sciences

Research output: Thesis › Doctoral Thesis

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Abstract

This thesis introduces an integrated inversion methodology exploiting the complementarities between probabilistic geological modelling. petrophysical measurements and geophysical inversion. The different sources of information are integrated
into a least-square inversion framework. The modularity of the proposed workflow allows several integration avenues for single domain and joint constrained inversion. Synthetic and real word case studies were performed. Results reveal that the application of petrophysical constraints sharpens the boundaries between geological units and that geological information strongly influences the structural features of the recovered model. Results also show that geological information is the main driver for uncertainty reduction in geophysical inverse modelling.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Rashidifard, Mahtab, Supervisor Suriyaarachchi, Nuwan Buddika, Supervisor Martin, Roland, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	5 Feb 2019
DOIs	https://doi.org/10.26182/5c6f6cd5c09c6
Publication status	Unpublished - 2019

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10.26182/5c6f6cd5c09c6

THESIS - DOCTOR OF PHILOSOPHY - GIRAUD Jeremie Eugene Cyril Davd - 2019
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Cite this

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title = "Development and application of multidisciplinary workflows for geologically and/or petrophysically constrained geophysical inversion",

abstract = "This thesis introduces an integrated inversion methodology exploiting the complementarities between probabilistic geological modelling. petrophysical measurements and geophysical inversion. The different sources of information are integrated into a least-square inversion framework. The modularity of the proposed workflow allows several integration avenues for single domain and joint constrained inversion. Synthetic and real word case studies were performed. Results reveal that the application of petrophysical constraints sharpens the boundaries between geological units and that geological information strongly influences the structural features of the recovered model. Results also show that geological information is the main driver for uncertainty reduction in geophysical inverse modelling. ",

keywords = "Geophysics, Posterior analysis, Inversion, Geology, Uncertainty, Gravity, Magnetics, Integration",

author = "Jeremie Giraud",

year = "2019",

doi = "10.26182/5c6f6cd5c09c6",

language = "English",

school = "The University of Western Australia",

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TY - THES

T1 - Development and application of multidisciplinary workflows for geologically and/or petrophysically constrained geophysical inversion

AU - Giraud, Jeremie

PY - 2019

Y1 - 2019

N2 - This thesis introduces an integrated inversion methodology exploiting the complementarities between probabilistic geological modelling. petrophysical measurements and geophysical inversion. The different sources of information are integrated into a least-square inversion framework. The modularity of the proposed workflow allows several integration avenues for single domain and joint constrained inversion. Synthetic and real word case studies were performed. Results reveal that the application of petrophysical constraints sharpens the boundaries between geological units and that geological information strongly influences the structural features of the recovered model. Results also show that geological information is the main driver for uncertainty reduction in geophysical inverse modelling.

AB - This thesis introduces an integrated inversion methodology exploiting the complementarities between probabilistic geological modelling. petrophysical measurements and geophysical inversion. The different sources of information are integrated into a least-square inversion framework. The modularity of the proposed workflow allows several integration avenues for single domain and joint constrained inversion. Synthetic and real word case studies were performed. Results reveal that the application of petrophysical constraints sharpens the boundaries between geological units and that geological information strongly influences the structural features of the recovered model. Results also show that geological information is the main driver for uncertainty reduction in geophysical inverse modelling.

KW - Geophysics

KW - Posterior analysis

KW - Inversion

KW - Geology

KW - Uncertainty

KW - Gravity

KW - Magnetics

KW - Integration

U2 - 10.26182/5c6f6cd5c09c6

DO - 10.26182/5c6f6cd5c09c6

M3 - Doctoral Thesis

ER -

Development and application of multidisciplinary workflows for geologically and/or petrophysically constrained geophysical inversion

Abstract

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