Marine seismic imaging
US-2024094421-A1 · Mar 21, 2024 · US
Vsp systems and methods representing survey data as parameterized compression, shear, and dispersive wave fields
US2015073714A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015073714-A1 |
| Application number | US-201214389321-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 2, 2012 |
| Priority date | Apr 2, 2012 |
| Publication date | Mar 12, 2015 |
| Grant date | — |
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Abstract
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Disclosed vertical seismic profiling (VSP) survey systems and method acquire multi-component signal data and represent the signal data in terms of a combination of parameterized compression, shear, and dispersive wavefields. Multiples of each wavefield type may be included, e.g., to separate upgoing and downgoing wavefield components. A nonlinear optimization is employed to concurrently estimate an incidence angle and a slowness value for each wavefield. For the dispersive wavefield(s), the slowness may be parameterized in terms of a phase slowness and a group slowness with respect to a central wave frequency. The parameter values may vary as a function of depth.
First claim
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What is claimed is: 1 . A vertical seismic survey method that comprises: receiving multi-component signal data from an array of sensors in a borehole; constructing a parameterized wave field model that includes at least one compression wavefield, at least one shear wavefield, and at least one dispersive wavefield; applying a nonlinear optimization to fit the model to the multi-component signal data, wherein the optimization concurrently estimates an incidence angle for each…
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- What does patent US2015073714A1 cover?
- Disclosed vertical seismic profiling (VSP) survey systems and method acquire multi-component signal data and represent the signal data in terms of a combination of parameterized compression, shear, and dispersive wavefields. Multiples of each wavefield type may be included, e.g., to separate upgoing and downgoing wavefield components. A nonlinear optimization is employed to concurrently estimat…
- Who is the assignee on this patent?
- Foy Richard D, Landmark Graphics Corp
- What technology area does this patent fall under?
- Primary CPC classification G01V1/40. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Mar 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).