Abstract:
Methods, systems and software for generating a multi-dimensional volume are disclosed. The methods include decomposing one or more original volumes into a collection of diplets, wherein each diplet comprises information about spatial location, orientation, amplitude, wavelet, acquisition configuration, and coherency. The methods further include migrating the collection of diplets using one or more of a velocity model or an anisotropic velocity model, and synthesizing one or more of the migrated diplets to an output multi-dimensional seismic volume.
Abstract:
Methods, systems, and software for representing seismic shot or receiver data as a superposition of a plurality of diplets are disclosed. The method includes decomposing one or more prestack shot or receiver records into a set of diplets, migrating the diplets using one or more velocity models, and synthesizing one or more migrated diplets into a migrated seismic volume, wherein each diplet comprises information about spatial location, orientation, amplitude, an associated wavelet, acquisition configuration, and coherency.
Abstract:
Methods, systems, and software for generating a multi-dimensional volume are disclosed. The methods include decomposing one or more original volumes into a collection of diplets, wherein each diplet comprises information about spatial location, orientation, amplitude, wavelet, acquisition configuration, and coherency. The methods further include migrating the collection of diplets using one or more of a velocity model or an anisotropic velocity model, and synthesizing one or more of the migrated diplets to an output multi-dimensional seismic volume.
Abstract:
Methods, software, and computer systems for 3D multiple prediction and removal are disclosed. The method includes determining a set of input diplets. The method includes, for one or more data diplets from the set of input diplets downward propagating the data diplet to model reflection of the data diplet at a location of at least one subsurface discontinuity and determining one or more predicted multiple diplets, based, at least in part on the data diplet and the modeled downward propagated and reflected diplet. The method includes comparing diplets in the set of input diplets with the one or more multiple diplets to determine a set of multiple diplets and a set of demultipled diplets.
Abstract:
Methods, systems and software for generating a multi-dimensional volume are disclosed. The methods include decomposing one or more original volumes into a collection of diplets, wherein each diplet includes information about spatial location, orientation, amplitude, wavelet, acquisition configuration, and coherency. The methods further include migrating the collection of diplets using one or more of a velocity model or an anisotropic velocity model, and synthesizing one or more of the migrated diplets to an output multi-dimensional seismic volume.
Abstract:
Methods, systems, and software for generating a multi-dimensional volume are disclosed. The methods include decomposing one or more original volumes into a collection of diplets, wherein each diplet includes information about spatial location, orientation, amplitude, wavelet, acquisition configuration, and coherency. The methods further include migrating the collection of diplets using one or more of a velocity model or an anisotropic velocity model, and synthesizing one or more of the migrated diplets to an output multi-dimensional seismic volume.
Abstract:
A computer implemented method for processing prestack seismic data representative of a subterrean contained in a model. The model may include a regular 3-D grid representative of the subterrean; attributes defined at each grid field; and at least one surface or body defined within the grid across which attributes are discontinuous and are not to be smoothed. The method may include ray tracing by solving kinematic or dynamic ray equations for the model in the grid where the interval velocities are not discontinuous, and by applying a refraction rule across the at least one surface or body.
Abstract:
Methods, apparatus and products for processing 4D+ prestack seismic data having the form of 3D prestack gathers, single fold 3D volumes, and a mapping table to link the gathers and the volumes coherently.
Abstract:
Methods, systems, and software for determining a seismic image of a target area are disclosed. The target area is defined by a volume of interest (VOI). The method includes receiving an unmigrated set of spatial wavelets, wherein the unmigrated set of spatial wavelets include unmigrated spatial wavelets in the time domain. The method includes receiving a first migrated set of spatial wavelets, wherein the first migrated set of spatial wavelets includes migrated spatial wavelets in the depth domain. Each spatial wavelet comprises information about spatial location, orientation, amplitude, wavelet, acquisition configuration, and coherency. Each spatial wavelet in the unmigrated set of spatial wavelets is linked to a spatial wavelet in the first migrated set of spatial wavelets. The method includes selecting spatial wavelets from the first migrated set of spatial wavelets that are within or slightly outside the VOI; selecting a target set of spatial wavelets, the target set of spatial wavelets including spatial wavelets from the unmigrated set of spatial wavelets that are linked to the selected spatial wavelets from the first migrated set of spatial wavelets; migrating the target set of spatial wavelets using one or more of a new velocity model to create a second migrated set of spatial wavelets; and synthesizing the second migrated set of spatial wavelets into a new seismic volume and synthesizing the second migrated set of spatial wavelets into one or more new seismic gathers.