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Analysis of Scattered Signal to Estimate Reservoir Fracture Parameters

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dc.contributor.author Grandi, Samantha K.
dc.contributor.author Willis, Mark E.
dc.contributor.author Burns, Daniel R.
dc.contributor.author oksoz, M. Nafi
dc.contributor.other Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.date.accessioned 2012-01-06T18:19:48Z
dc.date.available 2012-01-06T18:19:48Z
dc.date.issued 2007-05
dc.identifier.uri http://hdl.handle.net/1721.1/68018
dc.description.abstract We detect fracture corridors and determine their orientation and average spacing based on an analysis of seismic coda in the frequency-wave number (f-k ) domain. Fracture corridors have dimensions similar to seismic wavelengths which causes scattering. The distribution of energy in shot records in the f-k domain depends upon the orientation of the records relative to the fracture strike. In the direction normal to fractures, scattered waves propagate with slower apparent velocities than waves propagating along the fracture channels. The associated f-k spectral differences allow the identification of the preferred fracture orientation and spacing. We apply our technique to a fractured reservoir in the Lynx field, in the Canadian foothills. The estimated preferential fracture orientation is about N40 E, which agrees with regional stress measurements. The average fracture spacing is 75 m on the West side of the survey, while fractures are more sparse on the East side. We also apply the Scattering Index methodology (Willis et al., 2006) to the same data, post-stack and pre-stack. This technique has higher resolution to map fracture distribution, intensity and orientation, and therefore complements the spectral method in providing an integrated description of reservoir fractures. en_US
dc.description.sponsorship United States. Dept. of Energy (award number DE-FC26-06NT42956) en_US
dc.description.sponsorship Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.publisher Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.relation.ispartofseries Earth Resources Laboratory Industry Consortia Annual Report;2007-04
dc.title Analysis of Scattered Signal to Estimate Reservoir Fracture Parameters en_US
dc.type Technical Report en_US
dc.contributor.mitauthor Grandi, Samantha K.
dc.contributor.mitauthor Willis, Mark E.
dc.contributor.mitauthor Burns, Daniel R.
dc.contributor.mitauthor oksoz, M. Nafi
dspace.orderedauthors Grandi, Samantha K.; Willis, Mark E.; Burns, Daniel R.; Toksoz, M. Nafi en_US


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