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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao International Journa...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
International Journal of Rock Mechanics and Mining Sciences
Article . 2011 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Ground surface displacements and tilt monitoring for reconstruction of reservoir deformations

Authors: Kamelia Atefi Monfared; Leo Rothenburg;

Ground surface displacements and tilt monitoring for reconstruction of reservoir deformations

Abstract

Abstract Surface deformation generated during hydrocarbon production, and waste or water reinjection, can be used to indirectly monitor subsurface deformation sources. Forward and inverse models previously studied are mostly based on the nucleus of strain approach and are focused on measurements of vertical or horizontal deformations. The main objective of this study was to reconstruct subsurface deformations based on the unidirectional deformation technique and using combinations of tilt values as well as vertical displacements. A new numerical model was therefore developed. In order to stabilize the inverse ill-posed problem, a regularization method was developed in this study. One objective of this study was to determine the most suitable surface deformation data set resulting in the best inverse simulation. A detailed analysis was therefore performed. Tilt measurements were found to be more suitable data for inverse modeling compared to vertical displacements: tilts result in a better resolution (smaller root mean square error (RMSE)). Moreover, the inverse simulation was found to be significantly less sensitive to measurement errors when tilt values were used as input data: adding 0.55% error to the surface vertical displacement values increased the RMSE by more than 13 times, whereas, adding 20% error to the tilt values increased the RMSE by a factor of 7. Furthermore, the number of benchmarks could considerably be reduced without affecting the inverse solution significantly when using tilt measurements.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
16
Top 10%
Top 10%
Average
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