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Now showing items 1-10 of 11
A unified framework for relative source localization using correlograms
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We study the problem of determining an unknown event location relative to previously located events using a single monitoring array in a monitoring well. We show that using the available information about the previously ...
Comparison of microearthquake locations using seismic interferometry principles
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
Mapping, localization, and general characterization of problems in reservoir fracture systems is one of the most important in oil, gas, and geothermal energy production. One way to study and monitor these fracture systems ...
Kinematic redatuming by two source interferometry
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2010-04-26)
Interferometry is a method of redatuming physical sources to receiver locations. Under idealized assumptions stacking the cross correlogram of the two common receiver gathers yields a bandlimited
Green's function between ...
Detecting medium changes from coda by interferometry
(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 ...
Interferometric correlogram-space analysis
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2009-05-31)
Seismic interferometry is a method of obtaining a virtual shot
gather from a collection of actual shot gathers. The set of traces
corresponding to multiple actual shots recorded at two receivers is
used to synthesize a ...
Using SVD for improved interferometric Green’s function recovery.
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
Seismic interferometry is a technique used to estimate the
Green’s function (GF) between two receiver locations, as if
there were a source at one of the locations. By crosscorrelating
the recorded seismic signals at the ...
Improved Green’s functions from seismic interferometry
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2008-06-16)
Under certain theoretical assumptions, the theory of seismic interferometry allows the construction of artificial (or virtual) sources and
receivers at the locations of receivers in a physical experiment. This
is done ...
Interferometric imaging of multiples in an RTM approach
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
It is well known that reverse-time migration is capable of correctly
imaging multiply scattered energy. To do this, one of the interfaces
from which the waves scatter must be included in the background velocity
model. ...
Imaging Salt Dome Flank and Dipping Sediments Using Time Reversed Acoustics
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2006)
In this paper we define the theory and basic principles to move (redatum) the surface shots from a walk away VSP to be as if they had been located in the borehole. We will refer to this theory using several of the terms ...
Interferometric correlogram-space analysis
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2010-04-26)
Seismic interferometry is a method of obtaining a virtual shot gather
from a collection of physical shot gathers. The set of traces corresponding
to two common receiver gathers from many physical shots is used to synthesize ...