Back to results
US 7,646,671 B2Granted
Method for processing marine towed streamer seismic data from regular multi-azimuth surveys
AssigneePGS Geophysical AS
InventorsNaide Pan, Christian Strand
Life of this patent
Estimating the term…
Abstract
Marine towed streamer seismic data are combined from a first survey and a second survey, wherein the first survey and the second survey are shot with a bin size of L×L and the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey. The combined seismic data from the first and second surveys are binned on a bin grid with a bin size of L 2 × L 2 and with a bin grid orientation rotated 45° relative to the shooting directions of the first and second surveys. Then, seismic data processing is applied to the binned seismic data to create an image of the Earth's subsurface.
Claims26
A method for providing a seismic image of earth's subsurface, comprising:
- retrieving seismic data representative of earth's subsurface and acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy, from a first survey and a second survey, wherein the first survey and the second survey are shot with a bin size of L×L and the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first and second surveys;
- and
- binning the combined seismic data from the first and second surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation rotated 45° relative to the shooting directions of the first and second surveys;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
10 more elements
A method for providing a seismic image of earth's subsurface, comprising:
- retrieving seismic data representative of earth's subsurface and acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy, from a first survey, a second survey, and a third survey, wherein the first survey and the second survey are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey, and the third survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 45° relative to the shooting directions of the first and second surveys;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, and third surveys;
- and
- binning the combined seismic data from the first, second, and third surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
16 more elements
A method for providing a seismic image of earth's subsurface, comprising:
- retrieving seismic data representative of earth's subsurface and acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy, from a first survey, a second survey, a third survey, and a fourth survey, wherein the first survey and the second survey are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey, the third survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 45° relative to the shooting directions of the first and second surveys, and the fourth survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 90° relative to the shooting directions of the third survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, third and fourth surveys;
- and binning the combined seismic data from the first, second, third, and fourth surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
21 more elements
A method for providing a seismic image of earth's subsurface, comprising:
- retrieving seismic data representative of earth's subsurface and acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy, from a first survey, a second survey, and a third survey, wherein the first, second, and third surveys are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 60° relative to the shooting direction of the first survey, and the third survey is shot with a shooting direction rotated 120° relative to the shooting direction of the first survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, and third surveys;
- and
- binning the combined seismic data from the first, second, and third surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
10 more elements
A computer readable medium with a computer program stored thereon, the program having logic operable to cause a programmable computer to perform steps comprising:
- retrieving seismic data representative of earth's subsurface from a first survey and a second survey, wherein the first survey and the second survey are shot with a bin size of L×L and the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first and second surveys;
- and
- binning the combined seismic data from the first and second surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation rotated 45° relative to the shooting directions of the first and second surveys;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
10 more elements
A computer readable medium with a computer program stored thereon, the program having logic operable to cause a programmable computer to perform steps comprising:
- retrieving seismic data representative of earth's subsurface from a first survey, a second survey, and a third survey, wherein the first survey and the second survey are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey, and the third survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 450 relative to the shooting directions of the first and second surveys;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, and third surveys;
- and
- binning the combined seismic data from the first, second, and third surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
16 more elements
A computer readable medium with a computer program stored thereon, the program having logic operable to cause a programmable computer to perform steps comprising:
- retrieving seismic data representative of earth's subsurface from a first survey, a second survey, a third survey, and a fourth survey, wherein the first survey and the second survey are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 90° relative to the shooting direction of the first survey, the third survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 45° relative to the shooting directions of the first and second surveys, and the fourth survey is shot with a bin size of
- L
- 2
- ×
- L
- 2
- and with a shooting direction rotated 90° relative to the shooting directions of the third survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, third and fourth surveys;
- and binning the combined seismic data from the first, second, third, and fourth surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
21 more elements
A computer readable medium with a computer program stored thereon, the program having logic operable to cause a programmable computer to perform steps comprising:
- retrieving combining seismic data representative of earth's subsurface from a first survey, a second survey, and a third survey, wherein the first, second, and third surveys are shot with a bin size of L×L, the second survey is shot with a shooting direction rotated 60° relative to the shooting direction of the first survey, and the third survey is shot with a shooting direction rotated 120° relative to the shooting direction of the first survey;
- transforming the seismic data into binned seismic data with a higher resolution bin grid, comprising:
- combining the seismic data from the first, second, and third surveys;
- and
- binning the combined seismic data from the first, second, and third surveys on a bin grid with a bin size of
- L
- 2
- ×
- L
- 2
- and with a bin grid orientation parallel to the shooting direction of the first survey;
- and
- applying seismic data processing to the binned seismic data to create a higher resolution image of the earth's subsurface.
10 more elements
Dependencies are inferred from the claim text.