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Predicting stress-induced anisotropy around a borehole
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
Formation elastic properties near a borehole may be altered from their original state due to the stress concentration around the borehole. This could result in a biased estimation of formation properties but could provide ...
Seismic characterization of reservoirs with variable fracture spacing by double focusing Gaussian beams
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
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 ...
Double-beam stacking to infer seismic properties of fractured reservoirs
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
We develop a theory for using 3D beam interference to infer scattering properties of a fractured reservoir using reflected seismic P data. For the sake of simplicity, we use Gaussian beams. The scattering properties are ...
An approach for predicting stress-induced anisotropy around a borehole
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
Formation elastic properties near a borehole may be altered from their original state due to the stress concentration around the borehole. This could result in a biased estimation of formation properties but could provide ...
Efficient Double-Beam Characterization for Fractured Reservoir
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2012-06)
We proposed an efficient target-oriented method to characterize seismic properties of fractured reservoirs: the spacing between fractures and the fracture orientation. Based on the diffraction theory, the scattered wave ...
Estimating the fracture density of small-scale vertical fractures when large-scale vertical fractures are present
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
When fractures are vertical, aligned and their dimensions are small relative to the seismic wavelength, the medium can be considered to be an equivalent Horizontal Transverse Isotropic (HTI) medium. However, geophysical ...