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Simulating Shear Wave Propagation in Two-Dimensional Fractured Heterogeneous Media by Coupling Boundary Element and Finite Difference Methods 

Chen, Tianrun; Li, Junlun; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
A hybrid method to model the shear wave (SH) scattering from 2D fractures embedded in a heterogeneous medium is developed by coupling Boundary Element Method (BEM) and Finite Different Method (FDM) in the frequency domain. ...
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Interferometric hydrofracture microseism localization using neighboring fracture 

Poliannikov, Oleg V.; Malcolm, Alison E.; Djikpesse, Hugues; Prange, Michael (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011-05-19)
Hydraulic fracturing is the process of injecting high-pressure fluids into a reservoir to induce fractures and thus improve reservoir productivity. Microseismic event localization is used to locate created fractures. ...
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2011 Earth Resources Laboratory Founding Member Consortium Meeting Table of Contents 

Unknown author (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
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Geophysical Monitoring of Multiple Phase Saturation of Rocks: Application to CO[subscript 2] Sequestration 

Brown, Stephen (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
4-D seismic techniques rely on measuring changes in velocity over time in order to detect changes during activities such as CO[subscript 2] flooding and storage in a reservoir. Wang et al. [1998] detail a laboratory study ...
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SVD enhanced seismic interferometry for traveltime estimates between microquakes 

Melo, Gabriela; Malcolm, Alison E. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
In general, Green’s functions obtained with seismic interferometry are only estimates of the true Green’s function, introducing uncertainties to the information recovered from them. However, there are still many cases in ...
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Detecting medium changes from coda by interferometry 

Poliannikov, Oleg V.; Malcolm, Alison E. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
In many applications, sequestering CO[subscript 2] underground for example, determining whether or not the medium has changed is of primary importance, with secondary goals of locating and quantifying that change. We ...
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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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An approach for predicting stress-induced anisotropy around a borehole 

Fang, Xinding; Fehler, Michael; Zhu, Zhenya; Chen, Tianrun; Brown, Stephen; e.a. (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 ...
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A fast butterfly algorithm for the hyperbolic Radon transform 

Hu, Jingwei; Fomel, Sergey; Demanet, Laurent; Ying, Lexing (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We introduce a fast butterfly algorithm for the hyperbolic Radon transform commonly used in seismic data processing. For two-dimensional data, the algorithm runs in complexity O(N[superscript 2] logN), where N is representative ...
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Data-Driven Estimation of the Sensitivity of Target-Oriented Time-Lapse Seismic Imaging to Source Geometry 

Shabelansky, Andrey Hanan; Malcolm, Alison E.; Fehler, Michael (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
The goal of time-lapse imaging is to identify and characterize regions in which the earth's material properties have changed between surveys. This requires an effective deployment of sources and receivers to monitor the ...
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AuthorFehler, Michael (35)Malcolm, Alison E. (26)Fang, Xinding (17)Toksoz, M. Nafi (17)Burns, Daniel R. (13)Zheng, Yingcai (9)Brown, Stephen (8)Poliannikov, Oleg V. (8)Zhu, Zhenya (8)Chen, Tianrun (6)... View MoreSubjectInversion (23)Modeling (21)Microseismic (19)Fractures (17)Imaging (17)Scattering (15)Interferometry (13)Logging (5)Migration (5)Tomography (5)... View MoreDate Issued2013 (27)2012 (25)2011 (19)2010 (18)Has File(s)Yes (89)

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