Seismic data processing
AssigneeWesternGeco L.L.C.
InventorsJohan Olof Anders Robertsson, Julian Edward Kragh, Dirk-Jan Van Manen, Philippe Caprioli
Life of this patent
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Abstract
Implementations of various technologies for processing seismic data. In one implementation, the seismic data may be processed by creating a fictitious source-receiver line connecting a source with a receiver location of interest, projecting one or more receiver locations adjacent the receiver location of interest onto the fictitious source-receiver line and decomposing seismic data on the receiver locations disposed on the fictitious source-receiver line into up-going wavefields and down-going wavefields.
Claims28
A method for processing seismic data, comprising:
- creating a fictitious source-receiver line connecting a source with a receiver location of interest;
- projecting one or more actual receiver locations adjacent the receiver location of interest onto the fictitious source-receiver line, wherein the spacing between the receiver locations on the fictitious source-receiver line is smaller than the spacing between the actual receiver locations;
- and
- decomposing seismic data on the receiver locations on the fictitious source-receiver line into up-going wavefields and down-going wavefields.
A method for processing seismic data, comprising:
- (a) receiving one or more values of seismic survey parameters;
- (b) creating a fictitious source-receiver line connecting a source with a receiver location of interest;
- (c) projecting one or more actual receiver locations adjacent the receiver location of interest onto the fictitious source-receiver line, wherein the spacing between the receiver locations on the fictitious source-receiver line is smaller than the spacing between the actual receiver locations;
- (d) decomposing seismic data on the receiver locations on the fictitious source-receiver line into up-going wavefields and down-going wavefields using the one or more values;
- and
- (e) determining whether the up-going wavefields are consistent with the down-going wavefields.
A computer-readable medium having stored thereon computer-executable instructions which, when executed by a computer, cause the computer to:
- receive one or more parameters of an over/under streamer pair;
- decompose seismic data into up-going wavefields and down-going wavefields using the one or more parameters;
- and
- determine whether the up-going wavefields are consistent with the down-going wavefields.
A computer system, comprising:
- a processor;
- and
- a memory comprising program instructions executable by the processor to:
- create a fictitious source-receiver line connecting a source with a receiver location of interest;
- project one or more actual receiver locations adjacent the receiver location of interest onto the fictitious source-receiver line, wherein the spacing between the receiver locations on the fictitious source-receiver line is smaller than the spacing between the actual receiver locations;
- and
- decompose seismic data on the receiver locations on the fictitious source-receiver line into up-going wavefields and down-going wavefields.
Dependencies are inferred from the claim text.