High-resolution Fracture Characterization Using Elastic Full-waveform Inversion

Handle URI:
http://hdl.handle.net/10754/624908
Title:
High-resolution Fracture Characterization Using Elastic Full-waveform Inversion
Authors:
Zhang, Z.; Tsvankin, I.; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Current methodologies to characterize fractures at the reservoir scale have serious limitations in spatial resolution. Here, we propose to estimate both the spatial distribution and physical properties of fractures using full waveform inversion (FWI) of multicomponent surface seismic data. An effective orthorhombic medium with five clusters of vertical fractures distributed in a checkboard fashion is used to test the algorithm. To better understand the inversion results, we analyze the FWI radiation patterns of the fracture weaknesses. A shape regularization term is added to the objective function to improve the inversion for the horizontal weakness, which is otherwise poorly constrained. Alternatively, a simplified model of penny-shaped cracks is used to reduce the nonuniqueness in the inverted weaknesses and achieve a faster convergence.
KAUST Department:
KAUST
Citation:
Zhang Z, Tsvankin I, Alkhalifah T (2017) High-resolution Fracture Characterization Using Elastic Full-waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201701247.
Publisher:
EAGE Publications BV
Journal:
79th EAGE Conference and Exhibition 2017
Issue Date:
26-May-2017
DOI:
10.3997/2214-4609.201701247
Type:
Conference Paper
Sponsors:
We thank Juwon Oh, Ramzi Djebbi, Nabil Masmoudi and Yike Liu (IGG, CAS) for their helpful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.
Additional Links:
http://www.earthdoc.org/publication/publicationdetails/?publication=88964
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Z.en
dc.contributor.authorTsvankin, I.en
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2017-06-12T08:33:42Z-
dc.date.available2017-06-12T08:33:42Z-
dc.date.issued2017-05-26en
dc.identifier.citationZhang Z, Tsvankin I, Alkhalifah T (2017) High-resolution Fracture Characterization Using Elastic Full-waveform Inversion. 79th EAGE Conference and Exhibition 2017. Available: http://dx.doi.org/10.3997/2214-4609.201701247.en
dc.identifier.doi10.3997/2214-4609.201701247en
dc.identifier.urihttp://hdl.handle.net/10754/624908-
dc.description.abstractCurrent methodologies to characterize fractures at the reservoir scale have serious limitations in spatial resolution. Here, we propose to estimate both the spatial distribution and physical properties of fractures using full waveform inversion (FWI) of multicomponent surface seismic data. An effective orthorhombic medium with five clusters of vertical fractures distributed in a checkboard fashion is used to test the algorithm. To better understand the inversion results, we analyze the FWI radiation patterns of the fracture weaknesses. A shape regularization term is added to the objective function to improve the inversion for the horizontal weakness, which is otherwise poorly constrained. Alternatively, a simplified model of penny-shaped cracks is used to reduce the nonuniqueness in the inverted weaknesses and achieve a faster convergence.en
dc.description.sponsorshipWe thank Juwon Oh, Ramzi Djebbi, Nabil Masmoudi and Yike Liu (IGG, CAS) for their helpful discussions. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.en
dc.publisherEAGE Publications BVen
dc.relation.urlhttp://www.earthdoc.org/publication/publicationdetails/?publication=88964en
dc.rightsGold Open Accessen
dc.rightsArchived with thanks to 79th EAGE Conference and Exhibition 2017en
dc.titleHigh-resolution Fracture Characterization Using Elastic Full-waveform Inversionen
dc.typeConference Paperen
dc.contributor.departmentKAUSTen
dc.identifier.journal79th EAGE Conference and Exhibition 2017en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionColorado School of Minesen
kaust.authorZhang, Z.en
kaust.authorAlkhalifah, Tariq Alien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.