Marine seismic imaging
AssigneeSchlumberger Technology Corporation
InventorsEverhard Muijzert, Claudio Bagaini
Life of this patent
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Abstract
A method can include receiving seismic survey data of a subsurface environment from a seismic survey utilizing water bed receivers, where each of the receivers includes a clock; assessing one or more clock calibration criteria; based on the assessing, selecting a clock drift processor for processing at least a portion of the seismic survey data from a plurality of different clock drift processors; using at least the clock drift processor, performing a simultaneous inversion for values of model-based parameters; and, using at least a portion of the values, generating processed seismic survey data that represents one or more geological interfaces in the subsurface environment.
Claims19
A method comprising:
- receiving seismic survey data of a subsurface environment from a seismic survey utilizing water bed receivers located at a plurality of nodes located in a baseline grid, wherein each of the water bed receivers comprises a clock;
- assessing which of a plurality of clock calibration criteria the seismic survey data meets, the plurality of clock calibration criteria including:
- a first clock calibration criteria including whether clock drift correction has been applied using sync values at a deployment time and a retrieval time;
- a second clock calibration criteria including whether a clock sync at the deployment time is available;
- and
- a third clock calibration criteria including whether the clock sync is available at the retrieval time;
- responsive to which of the plurality of clock calibration criteria is met, selecting a clock drift processor for processing at least a portion of the seismic survey data from a plurality of different clock drift processors;
- using at least the clock drift processor, performing a simultaneous inversion for values of model-based parameters;
- and
- using at least a portion of the values and the baseline grid, generating processed seismic survey data that represents one or more geological interfaces in the subsurface environment.
A system comprising:
- a processor;
- memory operatively coupled to the processor;
- and
- processor-executable instructions stored in the memory to instruct the system to:
- receive seismic survey data of a subsurface environment from a seismic survey utilizing water bed receivers located at a plurality of nodes located in a baseline grid, wherein each of the water bed receivers comprises a clock;
- assess which of a plurality of clock calibration criteria the seismic survey data meets, the plurality of clock calibration criteria including:
- a first clock calibration criteria including whether clock drift correction has been applied using sync values at a deployment time and a retrieval time;
- a second clock calibration criteria including whether a clock sync at the deployment time is available;
- and
- a third clock calibration criteria including whether the clock sync is available at the retrieval time;
- responsive to which of the plurality of clock calibration criteria is met, select a clock drift processor for processing at least a portion of the seismic survey data from a plurality of different clock drift processors;
- using at least the clock drift processor, perform a simultaneous inversion for values of model-based parameters;
- and
- using at least a portion of the values and the baseline grid, generate processed seismic survey data that represents one or more geological interfaces in the subsurface environment.
One or more non-transitory computer-readable storage media comprising computer-executable instructions executable to instruct a computing system to:
- receive 4-dimensional seismic survey data of a subsurface environment from a seismic survey utilizing water bed receivers located at a plurality of nodes located in a baseline grid, wherein each of the water bed receivers comprises a clock, wherein the 4-dimensional seismic survey data includes a plurality of 3-dimensional seismic data sets collected over time;
- assess, for each of the plurality of 3-dimensional seismic data sets, which of a plurality of clock calibration criteria the plurality of 3-dimensional seismic data sets meets, the plurality of clock calibration criteria including:
- a first clock calibration criteria including whether clock drift correction has been applied using sync values at a deployment time and a retrieval time;
- a second clock calibration criteria including whether a clock sync at the deployment time is available;
- and
- a third clock calibration criteria including whether the clock sync is available at the retrieval time;
- responsive to which of the plurality of clock calibration criteria is met, select, from a plurality of different clock drift processors, a clock drift processor for processing at least a portion of each 3-dimensional seismic data sets of the plurality of 3-dimensional seismic data sets;
- using at least the clock drift processor, perform, for each 3-dimensional seismic data sets of the plurality of 3-dimensional seismic data sets, a simultaneous inversion for values of model-based parameters;
- and
- using at least a portion of the values and the baseline grid, generate time-lapse seismic survey data that represents changes with respect to time of one or more geological interfaces in the subsurface environment.
Dependencies are inferred from the claim text.