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US 10,761,240 B2Granted
Determining a notional source signature of a bubble
AssigneePGS Geophysical AS
InventorDaniel Martin Lewis Barker
Life of this patent
Estimating the term…
Abstract
A notional source signature of a bubble may be determined. For example, a method for determining a notional source signature of a bubble can include estimating a position of a bubble created by actuation of an impulsive source. A notional source signature of the bubble can be determined based on the estimate.
Claims16
A method, comprising:
- estimating a position of a bubble created by actuation of an impulsive source by:
- receiving a plurality of recordings having non-overlapping ghost notches;
- de-ghosting the plurality of recordings;
- and
- analyzing differences between a plurality of de-ghosted recordings, wherein the non-overlapping ghost notches occur at respective frequencies and are based on a depth of receivers at which the plurality of recordings are received;
- and
- determining a notional source signature of the bubble based on the estimate.
4 more elements
A method of generating a geophysical data product, the method comprising:
- obtaining geophysical data;
- processing the geophysical data to generate the geophysical data product, wherein processing the geophysical data comprises:
- estimating a position of a bubble created by actuation of an impulsive source by:
- receiving a plurality of recordings having non-overlapping ghost notches;
- de-ghosting the plurality of recordings;
- and
- analyzing differences between the plurality of de-ghosted recordings, wherein the non-overlapping ghost notches occur at respective frequencies and are based on a depth of receivers at which the plurality of recordings are received;
- and
- determining a notional source signature of the bubble based on the estimate.
6 more elements
A method, comprising:
- estimating a position of a bubble created by actuation of an impulsive source;
- determining a relative position between the bubble and the impulsive source;
- back-propagating a signal from a receiver to the impulsive source based, at least in part on the relative position between the bubble and the impulsive source;
- and
- determining a notional source signature of the bubble based on the estimate.
2 more elements
A method of generating a geophysical data product, the method comprising:
- obtaining geophysical data;
- processing the geophysical data to generate the geophysical data product, wherein processing the geophysical data comprises:
- estimating a position of a bubble created by actuation of an impulsive source;
- determining a relative position between the bubble and the impulsive source;
- back-propagating a signal from a receiver to the impulsive source based, at least in part on the relative position between the bubble and the impulsive source;
- and
- determining a notional source signature of the bubble based on the estimate.
4 more elements
Dependencies are inferred from the claim text.