3D Gravity Inversion using Tikhonov Regularization

Subsalt exploration for oil and gas is attractive in regions where 3D seismic depth-migration to recover the geometry of a salt base is difficult. Additional information to reduce the ambiguity in seismic images would be beneficial. Gravity data often serve these purposes in the petroleum industry....

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Bibliographic Details
Published in:Acta geophysica Vol. 63; no. 4; pp. 1044 - 1065
Main Authors: Toushmalani, Reza, Saibi, Hakim
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01.08.2015
De Gruyter Open
Springer Nature B.V
Subjects:
Bandar Charak
base salt
Earth and Environmental Science
Earth Sciences
Euler deconvolution
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Gravity
gravity inversion
Petroleum geology
Petroleum industry
Scientific imaging
Seismology
Structural Geology
Tikhonov regularization
Bandar Charak
Euler deconvolution
Tikhonov regularization
base salt
gravity inversion
ISSN:1895-6572, 1895-7455
Online Access:Get full text
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Summary:Subsalt exploration for oil and gas is attractive in regions where 3D seismic depth-migration to recover the geometry of a salt base is difficult. Additional information to reduce the ambiguity in seismic images would be beneficial. Gravity data often serve these purposes in the petroleum industry. In this paper, the authors present an algorithm for a gravity inversion based on Tikhonov regularization and an automatically regularized solution process. They examined the 3D Euler deconvolution to extract the best anomaly source depth as a priori information to invert the gravity data and provided a synthetic example. Finally, they applied the gravity inversion to recently obtained gravity data from the Bandar Charak (Hormozgan, Iran) to identify its subsurface density structure. Their model showed the 3D shape of salt dome in this region.
Bibliography:SourceType-Scholarly Journals-1
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ISSN:1895-6572
1895-7455
DOI:10.1515/acgeo-2015-0029