A numerical study of how randomly oriented cracks influence the nonlinear interactions of elastic waves
- Herurisa Rusmanugroho (Memorial University of Newfoundland) | Alison Malcolm (Memorial University of Newfoundland) | Meghdad Darijani (Memorial University of Newfoundland)
- Document ID
- Society of Exploration Geophysicists
- SEG International Exposition and Annual Meeting, 15-20 September, San Antonio, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2019. Society of Exploration Geophysicists
- Numerical, Wave propagation, Nonlinear, Fractures, Modeling
- 4 in the last 30 days
- 5 since 2007
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Cracked reservoirs are increasingly important as more exploration focusses on unconventional resources. Cracks are known to change the velocities of P- and S-waves, and these changes are known to be a function of crack width and orientation. Sensing that the P-wavespeed is changed due to cracks is difficult because many other parameters affect the wavespeed. We model how nonlinear wave interactions can be used to separate the effects of cracks. Specifically, we model how sensitive nonlinear wave interactions are to crack orientation with a particular focus on sets of randomly oriented cracks.
Presentation Date: Monday, September 16, 2019
Session Start Time: 1:50 PM
Presentation Start Time: 4:45 PM
Presentation Type: Oral
|File Size||538 KB||Number of Pages||5|
Benson,P.,P.,Meredith,E.,Platzman, andR.,White,2005,Pore fabric shape anisotropy in porous sandstones and its relation to elastic wave velocity and permeability anisotropy under hydrostatic pressure:International Journal of Rock Mechanics and Mining Sciences,42,890–899,doi:10.1016/j.ijrmms.2005.05.003.
Coates,R. T., andM.,Schoenberg,1995,Finite-difference modeling of faults and fractures:Geophysics,60,1514–1526,doi:10.1190/1.1443884.
Gallot,T.,A.,Malcolm,T. L.,Szabo,S.,Brown,D.,Burns, andM.,Fehler,2015,Characterizing the nonlinear interaction of S- and P-waves in a rock sample:Journal of Applied Physics,117,034902,doi:10.1063/1.4905913.
Grechka,V., andM.,Kachanov,2006,Effective elasticity of fractured rocks: A snapshot of the work in progress:Geophysics,71,no.6,W45–W58,doi:10.1190/1.2360212.
Guyer,R. A., andP. A.,Johnson,1999,Nonlinear mesoscopic elasticity: Evidence for a new class of materials:Physics Today,52(4),30–36,doi:10.1063/1.882648.
Johnson,P., andP.,Rasolofosaon,1996,Nonlinear elasticity and stress-induced anisotropy in rock:Journal of Geophysical Research: Solid Earth,101,3113–3124,doi:10.1029/95JB02880.
Matsuda,N., andS.,Biwa,2012,A finite-difference time-domain technique for nonlinear elastic media and its application to nonlinear lamb wave propagation:Japanese Journal of Applied Physics,51,07GB14,doi:10.7567/JJAP.51.07GB14.
Pecorari,C.,2015,Modeling non-collinear mixing by distributions of clapping microcracks:Wave Motion,59,69–80,doi:10.1016/j.wavemoti.2015.08.001.
Rusmanugroho,H.,A.,Malcolm, andM.,Darijani,2018,A numerical modeling of how cracks influence the nonlinear interactions of P- and S-waves:88th Annual International Meeting, SEG,Expanded Abstracts,3828–3832,doi:10.1190/segam2018-2997288.1.
Schoenberg,M.,1980,Elastic wave behavior across linear slip interfaces:The Journal of the Acoustical Society of America,68,1516–1521,doi:10.1121/1.385077.
Schoenberg,M., andC. M.,Sayers,1995,Seismic anisotropy of fractured rock:Geophysics,60,204–211,doi:10.1190/1.1443748.
TenCate,J.,A.,Malcolm,X.,Feng, andM.,Fehler,2016,The effect of crack orientation on the nonlinear interaction of a P wave with an S wave:Geophysical Research Letters,43,6146–6152,doi:10.1002/2016GL069219.