Amplitude inversion on partitioned depth image gathers using point spread functions
AssigneeSchlumberger Technology Corporation
InventorsXiang Du, Robin Fletcher
Life of this patent
Estimating the term…
Abstract
A method can include receiving input that specifies a type of partitionable pre-stack seismic data for a geologic environment and corresponding partitions; receiving an elastic model parameterized via elastic properties; generating synthetic seismic data for at least a portion of the geologic environment based at least in part on point spread functions and the elastic model; for the partitions, comparing the pre-stack seismic data and the generated synthetic seismic data; based at least in part on the comparing, updating the elastic model; and outputting values for at least one of the elastic properties.
Claims19
A method comprising:
- receiving, via a computing system, input that specifies a type of partitionable pre-stack seismic data for a geologic environment and corresponding partitions;
- receiving, via the computing system, pre-stack seismic data of the geologic environment wherein the pre-stack seismic data comprises source-direction image gathers;
- generating, via the computing system, synthetic seismic data for at least a portion of the geologic environment based at least in part on point spread functions and a multi-dimensional elastic model parameterized via elastic properties, wherein the synthetic seismic data comprises synthetic source-direction image gathers;
- performing an inversion, via the computing system, for at least one of the elastic properties wherein the performing comprises, for the partitions, comparing the pre-stack seismic data and the synthetic seismic data and, based at least in part on the comparing, updating the multi-dimensional elastic model;
- and
- outputting, via the computing system, values for at least one of the elastic properties.
A system comprising:
- a processor;
- memory operatively coupled to the processor;
- and
- processor-executable instructions stored in the memory to instruct the system wherein the instructions comprise instructions to
- receive input that specifies a type of partitionable pre-stack seismic data for a geologic environment and corresponding partitions,
- receive pre-stack seismic data of the geologic environment wherein the pre-stack seismic data comprises source-direction image gathers,
- generate synthetic seismic data for at least a portion of the geologic environment based at least in part on point spread functions and a multi-dimensional elastic model parameterized via elastic properties, wherein the synthetic seismic data comprises synthetic source-direction image gathers,
- perform an inversion for at least one of the elastic properties wherein the performance comprises, for the partitions, a comparison of the pre-stack seismic data and the synthetic seismic data and, based at least in part on the comparison, an update of the multi-dimensional elastic model, and
- output values for at least one of the elastic properties.
One or more computer-readable storage media comprising computer-executable instructions executable to instruct a computer to:
- receive input that specifies a type of partitionable pre-stack seismic data for a geologic environment and corresponding partitions;
- receive pre-stack seismic data of the geologic environment wherein the pre-stack seismic data comprises source-direction image gathers,
- generate synthetic seismic data for at least a portion of the geologic environment based at least in part on point spread functions and a multi-dimensional elastic model parameterized via elastic properties, wherein the synthetic seismic data comprises synthetic source-direction image gathers,
- perform an inversion for at least one of the elastic properties wherein the performance comprises, for the partitions, a comparison of the pre-stack seismic data and the synthetic seismic data and, based at least in part on the comparison, an update of the multi-dimensional elastic model, and
- output values for at least one of the elastic properties.
Dependencies are inferred from the claim text.