摘要:
A technique includes determining at least one impulse response of a modeling and migration of at least one point scatterer in a target structure and based at least in part on the impulse response(s) and a reflection amplitude image, determining a model for at least part of the target structure.
摘要:
A computer-implemented method for placing insurance coverage with insurers includes a broker user interface, and an insurer user interface for displaying a graphical representation of an insurance tower. The insurer user interface provides one or more insurers the ability to select, bid or request variants of the insurance tower. A blockchain system is used for authorizing one or more bids or variants in the insurance risk towers.
摘要:
To perform inversion to produce a model of a structure, a filtering operator based at least on an angle between a propagating direction of a source wavefield and a propagating direction of a back-propagated receiver wavefield is computed. The filtering operator is used in performing the inversion to produce the model of the structure.
摘要:
A technique includes modeling a seismic wavefield in a vertical transversely isotropic media as a second order derivative of a first wavefield function with respect to a vertical direction and not with respect to crossline and inline directions and as second order derivatives of a second wave field function with respect to the inline and crossline directions and not with respect to the vertical direction. The method includes processing seismic measurements of the media in accordance with the modeled seismic wavefield to obtain information about the media. In another technique, a seismic wavefield in a tilted transversely isotropic media are modeled based at least in part on orientation of the symmetry axis and a nonzero shear velocity for the media; and seismic measurements of the media are processed in accordance with the modeled seismic wavefield to obtain information associated with the media.
摘要:
To generate an absorption parameter model, estimated values of an effective absorption parameter are received, where the estimated effective absorption parameter values represent absorption encountered by a seismic wave in a subterranean structure. Based on the estimated effective absorption parameter values, an absorption parameter model is generated that varies absorption parameter values along at least one dimension of the subterranean structure.
摘要:
A technique includes receiving data indicative of a wavefield in a processor-based system and processing the data on the processor-based system to generate a modeled wavefield. The processing includes varying boundary conditions of the modeled wavefield with respect to time to regulate coherent boundary reflections in the modeled wavefield.
摘要:
Computing systems and methods for improving imaging of collected data are disclosed. In one embodiment, a first wavefield is propagated to obtain a first wavefield history; the first wavefield is again propagated to obtain a second wavefield history, wherein the propagation includes integration of one or more Q-effects; a first attenuated traveltime history is estimated based at least in part on the first and second wavefield histories; a first Q-model filter is calculated based at least in part on the first estimated attenuated traveltime; and a first adjusted wavefield is generated based at least in part on application of the first Q-model filter to the first wavefield. In some embodiments, an image is generated based at least on a first adjusted wavefield and a second wavefield.
摘要:
To generate an absorption parameter model, estimated values of an effective absorption parameter are received, where the estimated effective absorption parameter values represent absorption encountered by a seismic wave in a subterranean structure. Based on the estimated effective absorption parameter values, an absorption parameter model is generated that varies absorption parameter values along at least one dimension of the subterranean structure.
摘要:
A computer-implemented method for placing insurance coverage with insurers includes a broker user interface, and an insurer user interface for displaying a graphical representation of an insurance tower. The insurer user interface provides one or more insurers the ability to select, bid or request variants of the insurance tower. A blockchain system is used for authorizing one or more bids or variants in the insurance risk towers.
摘要:
To perform inversion to produce a model of a structure, a filtering operator based at least on an angle between a propagating direction of a source wavefield and a propagating direction of a back-propagated receiver wavefield is computed. The filtering operator is used in performing the inversion to produce the model of the structure.