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US 2010/0149922 A1Published application
Apparatus for Generating Seismic Signals Having Distinguishing Signatures
AssigneeION Geophysical Corporation
InventorsGary A. Sitton, Robert Bloor, J. MacDonald Smith
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Abstract
A method and apparatus for generating a seismic source signal are provided for generating energy in the form of a plurality of time sequence vibratory signals, the vibratory signals being partitioned as a function of time and/or frequency, wherein each of the plurality of signals comprises a distinguishing signature. The partitioned vibratory signals are emitted into a terrain of interest as seismic source signals for conducting a seismic survey
Claims32
A seismic source, comprising:
- a reaction mass movable with respect to a geological structure;
- and
- an actuator moving the reaction mass, the movement of the reaction mass emitting a source signal as seismic energy into the geological structure,
- wherein the source signal is generated from a base vibratory signal segmented into a plurality of segments, the base vibratory signal sweeping from an initial frequency to a final frequency, each of the segments having a partition of sweep frequencies different from the other segments, and
- wherein the source signals has a distinguishing arrangement of the segments different from other source signals used in a seismic survey.
2 more elements
A seismic system, comprising:
- a plurality of seismic sources, each of the seismic sources comprising:
- a reaction mass movable with respect to a geological structure;
- and
- an actuator moving the reaction mass, the movement of the reaction mass emitting a source signal as seismic energy into the geological structure,
- wherein each of the source signals is generated from a base vibratory signal segmented into a plurality of segments, the base vibratory signal sweeping from an initial frequency to a final frequency, each of the segments having a partition of sweep frequencies different from the other segments, and
- wherein each of the source signals has a distinguishing arrangement of the segments different from the other source signals.
3 more elements
Dependencies are inferred from the claim text.