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Nonlinear Frechet derivative and its De Wolf approximation 

Wu, Ru-Shan; Zheng, Yingcai (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We introduce and derive the nonlinear Frechet derivative for the acoustic wave equation. It turns out that the high order Frechet derivatives can be realized by consecutive applications of the scattering operator and a ...
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Numerical modeling of elastic wave scattering by near-surface heterogeneities 

Al Muhaidib, Abdulaziz; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
A perturbation method for elastic waves and numerical forward modeling are used to calculate the effects of seismic wave scattering from arbitrary shape shallow subsurface heterogeneities. Wave propagation is simulated ...
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Seismic characterization of fractured reservoirs using 3D double beams 

Zheng, Yingcai; Fang, Xinding; Fehler, Michael; Burns, Daniel R. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We propose an efficient target-oriented method to characterize seismic properties of fractured reservoirs: the spacing between fractures and the fracture orientation. We use both singly scattered and multiply scattered ...
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Modeling of acoustic wave scattering from a two-dimensional fracture 

Chen, Tianrun; Fehler, Michael; Brown, Stephen; Zhang, Yang; Fang, Xinding; e.a. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
In this paper, we model the acoustic scattering from a two dimensional fracture that is simulated by two different physical models. We calculate the scattering from the fractures with different properties based on these ...
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Finite Difference Elastic Wave Modeling Including Surface Topography 

Al Muhaidib, Abdulaziz; Fehler, Michael; Toksoz, M. Nafi; Zhang, Yang (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
Surface topography and the weathered zone (i.e., heterogeneity near the earth’s surface) have great effects on elastic wave propagation. Both surface waves and body waves are contaminated by scattering and conversion by ...
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SH Wave Scattering from Fractures using Boundary Element Method with Linear Slip Boundary Condition 

Chen, Tianrun; Fehler, Michael; Fang, Xinding; Shang, Xuefeng; Burns, Daniel R. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
A boundary element method (BEM) combined with a linear slip boundary condition is proposed to calculate SH wave scattering from fractures. The linear slip boundary condition was proposed by Schoenberg (1980) to model elastic ...
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Sensitivity of time lapse seismic data to the compliance of hydraulic fractures 

Fang, Xinding; Shang, Xuefeng; Fehler, Michael (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
We study the sensitivity of seismic waves to changes in the fracture normal and tangential compliances by analyzing the fracture sensitivity wave equation, which is derived by differentiating the elastic wave equation with ...
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Reservoir fracture characterizations from seismic scattered waves 

Fang, Xinding; Fehler, Michael; Zhu, Zhenya; Zheng, Yingcai; Burns, Daniel R. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
The measurements of fracture parameters, such as fracture orientation, fracture density and fracture compliance, in a reservoir is very important for field development and exploration. Traditional seismic methods for ...
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Surface-wave eikonal tomography in a scattering environment 

Verdel, Arie; Gouedard, Pierre; Yao, Huajian; van der Hilst, Robert D. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
Surface waves are of increasing interest in seismic prospecting. Traveltime tomography based on dispersion measurements is often used to process surface-wave data, but it has limitations due to the a priori information ...
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Joint flow-seismic inversion for characterizing fractured reservoirs: theoretical approach and numerical modeling 

Kang, Peter K.; Zheng, Yingcai; Fang, Xinding; Wojcik, Rafal; McLaughlin, Dennis; e.a. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Traditionally, seismic interpretation is performed without any account of the flow behavior. Here, we present a methodology to characterize fractured geologic media by integrating flow and seismic data. The key element of ...
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AuthorFehler, Michael (9)Fang, Xinding (8)Burns, Daniel R. (6)Zheng, Yingcai (5)Brown, Stephen (4)Toksoz, M. Nafi (3)Zhu, Zhenya (3)Al Muhaidib, Abdulaziz (2)Chen, Tianrun (2)Shang, Xuefeng (2)... View MoreSubject
Scattering (15)
Modeling (9)Fractures (5)Fluid flow (2)Imaging (2)Inversion (1)Tomography (1)... View MoreDate Issued2012 (5)2013 (4)2010 (3)2011 (3)Has File(s)Yes (15)

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