Determination of notional signatures
AssigneeWesternGeco L.L.C.
InventorRobert Laws
Life of this patent
Estimating the term…
Abstract
A method of determining the signature of a seismic source array comprises determining a notional signature of at least one source of an array of n seismic sources from measurements of the emitted wavefield from the array made at 2n independent locations and from the relative positions of the sources of the array and the 2n independent locations. The notional signature of a source may be determined from the difference (or some other function) of the measurements of the emitted wavefield made by the two sensors associated with that source.
Claims23
A method of determining the signature of a source array, the method comprising:
- determining a notional signature of at least one source of an array of n sources from measurements of the emitted wavefield from the array made at 2 n independent locations and from the relative positions of the sources of the array and the 2 n independent locations;
- and
- processing seismic data acquired consequent to actuation of the source array to obtain information about one or more parameter of the earth's interior;
- wherein processing the acquired seismic data comprises taking the determined notional signature of at least one source of the array into account.
A seismic source array comprising:
- n seismic sources, each seismic source having associated respective first and second sensors for measuring an emitted wavefield.
Dependencies are inferred from the claim text.