Computing an absorption parameter for a mode-converted seismic wave
First Claim
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1. A method of surveying a subterranean structure, comprising:
- processing measured seismic data using an algorithm for deriving a single-mode absorption parameter; and
computing a first absorption parameter for a mode-converted seismic wave based on an output of the algorithm, wherein the first absorption parameter represents an absorption effect of the mode-converted seismic wave by the subterranean structure, and wherein the mode-converted seismic wave is reflected from the subterranean structure in response to a source seismic wave of a different mode than the mode-converted seismic wave.
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Abstract
To survey a subterranean structure, measured seismic data is processed using an algorithm for deriving a single-mode absorption parameter. A first absorption parameter for a mode-converted seismic wave is computed based on an output of the algorithm. The first absorption parameter represents an absorption effect of the mode-converted seismic wave by the subterranean structure, where the mode-converted seismic wave is reflected from the subterranean structure in response to a source seismic wave of a different mode than the mode-converted seismic wave.
16 Citations
17 Claims
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1. A method of surveying a subterranean structure, comprising:
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processing measured seismic data using an algorithm for deriving a single-mode absorption parameter; and computing a first absorption parameter for a mode-converted seismic wave based on an output of the algorithm, wherein the first absorption parameter represents an absorption effect of the mode-converted seismic wave by the subterranean structure, and wherein the mode-converted seismic wave is reflected from the subterranean structure in response to a source seismic wave of a different mode than the mode-converted seismic wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An article comprising at least one storage medium containing instructions that when executed cause a computer to:
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receive measured data provided by at least one seismic sensor, the measured data relating to a mode-converted seismic wave reflected from the subterranean structure, the mode-converted seismic wave having a mode different from a mode of a source seismic wave produced by a seismic source; and apply an algorithm for deriving a single-mode absorption parameter to compute an absorption parameter for the mode-converted seismic wave based on the received measured data. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A computer comprising:
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at least central processing unit (CPU); and software executable on the at least one CPU to; process measured seismic data using an algorithm for deriving a single-mode absorption parameter; and compute a first absorption parameter for a mode-converted seismic wave based on an output of the algorithm, wherein the first absorption parameter represents an absorption effect of the mode-converted seismic wave by the subterranean structure, and wherein the mode-converted seismic wave is reflected from the subterranean structure in response to a source seismic wave of a different mode than the mode-converted seismic wave.
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Specification