Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams
Name
Zheng_etal_.Seismic characteriazatio_of _reservoirs.pdf
Size
1.57 MB
Format
Adobe PDF
Checksum (MD5)
c494e5d7fc366e5241c9b05b5519f71b
Author(s)
Zheng, Yingcai
Fang, Xinding
Fehler, Michael
Date Issued
2013
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;2013-10
Abstract
Fractured reservoirs account for a majority of the oil production worldwide and often have low recovery rate. Fracture characterization is important in building reservoir flow models for enhanced oil recovery. Information about fracture orientation, fracture spacing, and fracture compliances is essential. When a fracture network consisting of multiple sets of fractures with variable fracture spacing/orientation is present, we have to determine the spatial information about them as this may represent important connectivity information for fluid flow. We present a seismic method that can achieve the above goals in the context of seismic scattering, when the fracture spacing is on the order of half of the wavelength. The method is based measuring the beam interference pattern for two Gaussian beams focused on a fractured reservoir location, one beam from the sources and the other from the receivers. Numerical examples show that our method can provide spatially dependent information on fracture parameters.
Subjects
Fractures
Inversion
Modeling
Persistent DSpace Link
