Browsing ERL Industry Consortia Technical Reports by Title
Now showing items 335-354 of 456
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Radiation Patterns Of Compressional And Shear Transducers At The Surface Of An Elastic Half Space
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1992)The radiation patterns of an elastic wave field generated by circular plane compressional and shear transducers are derived using the method of steepest descent. These patterns contain both effects of the elastic half ... -
Rapid 3-D Raytracing For Optimal Seismic Survey Design
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1997)A useful approach to optimal seismic survey design is to simulate the seismic response for a suite of a priori subsurface models and shot-receiver templates. The response can be used to evaluate many criteria such as ... -
Real-time ensemble control with reduced-order modeling
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)The control of spatially distributed systems is often complicated by significant uncertainty about system inputs, both time-varying exogenous inputs and time-invariant parameters. Spatial variations of uncertain parameters ... -
Recursive Imaging with Multiply-Scattered Waves Using Partial Image Regularization: A North Sea Case Study
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)As more resources are directed toward reverse-time migration an accurate velocity model, including strong reflectors, is necessary to form a clear image of the subsurface. This is of particular importance in the vicinity ... -
Redatumming Through a Salt Canopy – Another Salt Flank Imaging Strategy
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2007)We describe a new short cut strategy to image the sediments and salt edge around a salt flank through an overburden salt canopy. We demonstrate its performance and capabilities on a synthetic acoustic seismic data from ... -
Reflection Moveout Inversion For Horizontal Transverse Isotropy: Accuracy And Limitation
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1998)Horizontal transverse isotropy (HTI) is the simplest azimuthally anisotropic model used to describe vertical fracturing in an isotropic matrix. Using the elliptical variation of P-wave normal-moveout (NMO) velocity with ... -
Reflection Moveout Inversion In Azimuthally Anisotropic Media: Accuracy, Limitation, And Acquisition
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1999)Parameter estimation from elliptical variations in the normal-moveout (NMO) velocity in azimuthally anisotropic media is sensitive to the angular separation between the survey lines in 2D, or equivalently source-to-receiver ... -
Registration-guided least-squares waveform inversion
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2013-01-15)Full waveform inversion with frequency sweeping cannot start from zero frequency because of the lack of low-frequency data, requiring a good starting model. We study a di fferent iterative scheme where the notion of proximity ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)This report contains the results ot work completed during the fifth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.l.T. During this past year, the emphasis in our research ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1992)This report contains the results of work completed during the tenth year of the Borehole Acoustics and Logging Consortium in the Earth Resources Laboratory at M.l.T. This is the first year that the Consortium has been ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1988)This report contains the results of work completed during the sixth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.LT. Over the last six years, our work have evolved from ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1991)This report contains the results of work completed during the ninth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.LT. During the past year, we have started the evolution ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)This report contains the results of work completed during the eleventh year of the Borehole Acoustics and Logging Consortium in the Earth Resources Laboratory at M.LT. We continued our trend toward more general borehole ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1990)This report contains the results of work completed during the eighth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.I.T. During the past year, we were able to accomplish many ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1994)This report contains the results of work completed during the twelfth year of the Borehole Acoustics and Logging Consortium in the Earth Resources Laboratory at M.LT. This year we have achieved one of our major goals in ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1986)This report contains the results of work completed during the fourth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.LT. This is the first year of the second phase of the ... -
Report Summary
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)This report contains the results of work completed during the seventh year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.LT. During the past year, we have been concentrating on ... -
Reservoir Delineation Research
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1996)This report describes work performed by the Reservoir Delineation Consortium during the past year. We have made progress in the areas of theoretical analysis of wave propagation, data analysis, and significant field work ... -
Reservoir fracture characterizations from seismic scattered waves
(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 ... -
Reservoir Simulation with the Finite Element Method Using Biot Poroelastic Approach
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2003)We are developing a finite element program for oil and gas reservoir simulation based on Biot's poroelastic theory, where a simultaneous solution is sought for both the pore pressure and strain in the solid phase. Several ...
