Receiving seismic signals from seismic signal sources
First Claim
1. A system for receiving seismic signals, comprising:
- a first plurality of seismic signal sources installed at a terranean surface grouped to define respective perimeters of a first plurality of geographic zones on the terranean surface;
a second plurality of seismic signal sources installed at the terranean surface grouped to define respective perimeters of a second plurality of geographic zones on the terranean surface, the second plurality of zones interspersed between the first plurality of zones to form a pattern of first and second zones, each geographic zone of the second plurality of geographic zones adjacent a geographic zone of the first plurality of geographic zones along all sides of the perimeter; and
a plurality of seismic signal receivers installed at the terranean surface, with at least one seismic signal receiver installed within each of the first and second plurality of geographic zones, the installed seismic signal receivers within the first plurality of geographic zones are less than the installed seismic signal receivers within the second plurality of geographic zones,wherein installed seismic signal receivers within the first plurality of geographic zones comprise less than two seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, and installed seismic signal receivers within the second plurality of geographic zones comprise two or more seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, the seismic signal receivers within each of the second plurality of geographic zones arranged in a two-dimensional array dispersed substantially evenly throughout areas bounded by the perimeters defined by the second plurality of seismic signal sources.
1 Assignment
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Accused Products
Abstract
A seismic exploration system includes a survey area defined by a perimeter and including a first plurality of sub-areas and a second plurality of sub-areas adjacent the first plurality of sub-areas; two or more seismic energy sources installed within the perimeter of the seismic survey area; a first plurality of groups of seismic energy receivers installed in the first plurality of sub-areas, each of the groups of seismic energy receivers in the first plurality of groups including two or more seismic energy receivers per wavelength of seismic energy generated by the two or more seismic energy sources; and a second plurality of groups of seismic energy receivers installed in the second plurality of sub-areas, each of the groups of seismic energy receivers in the second plurality of groups including less than two seismic energy receivers per wavelength of seismic energy generated by the two or more seismic energy sources.
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Citations
19 Claims
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1. A system for receiving seismic signals, comprising:
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a first plurality of seismic signal sources installed at a terranean surface grouped to define respective perimeters of a first plurality of geographic zones on the terranean surface; a second plurality of seismic signal sources installed at the terranean surface grouped to define respective perimeters of a second plurality of geographic zones on the terranean surface, the second plurality of zones interspersed between the first plurality of zones to form a pattern of first and second zones, each geographic zone of the second plurality of geographic zones adjacent a geographic zone of the first plurality of geographic zones along all sides of the perimeter; and a plurality of seismic signal receivers installed at the terranean surface, with at least one seismic signal receiver installed within each of the first and second plurality of geographic zones, the installed seismic signal receivers within the first plurality of geographic zones are less than the installed seismic signal receivers within the second plurality of geographic zones, wherein installed seismic signal receivers within the first plurality of geographic zones comprise less than two seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, and installed seismic signal receivers within the second plurality of geographic zones comprise two or more seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, the seismic signal receivers within each of the second plurality of geographic zones arranged in a two-dimensional array dispersed substantially evenly throughout areas bounded by the perimeters defined by the second plurality of seismic signal sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for receiving seismic signals, comprising:
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installing a first plurality of seismic signal sources at a terranean surface grouped to define respective perimeters of a first plurality of geographic zones on the terranean surface; installing a second plurality of seismic signal sources at the terranean surface grouped to define respective perimeters of a second plurality of geographic zones on the terranean surface, zones the second plurality of zones interspersed between the first plurality of zones to form a pattern of first and second zones, each geographic zone of the second plurality of geographic zones adjacent a geographic zone of the first plurality of geographic zones on all sides of the perimeter; and installing a plurality of seismic signal receivers at the terranean surface, with at least one seismic signal receiver installed within each of the first and second plurality of geographic zones, the installed seismic signal receivers within the first plurality of geographic zones are less than the installed seismic signal receivers within the second plurality of geographic zones, wherein the installed seismic signal receivers within the first plurality of geographic zones comprise less than two seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, and wherein the installed seismic signal receivers within the second plurality of geographic zones comprise two or more seismic signal receivers per wavelength of seismic energy generated by at least one of the seismic signal sources, the seismic signal receivers within each of the second plurality of geographic zones arranged in a two-dimensional array dispersed substantially evenly throughout areas bounded by the perimeters defined by the second plurality of seismic signal sources. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification