Amplitude contrast seismic attribute
AssigneeSchlumberger Technology Corporation
InventorsAhmed Adnan Aqrawi, Trond Hellem Bø
Life of this patent
Estimating the term…
Abstract
A method for visualizing seismic data of a subterranean formation, including obtaining an estimated dip field of the subterranean formation, wherein the estimated dip field represents a measure of deviation of a stratigraphic layer from flat, extracting a matrix data item surrounding a voxel of the seismic data, wherein the matrix data item is extracted from the seismic data based on a value of the estimated dip field surrounding the voxel, generating modified seismic data by at least applying a matrix operator to the seismic data, wherein the matrix operator calculates a partial derivative of the seismic data using the matrix data item, and displaying the modified seismic data.
Claims21
A method for visualizing seismic data of a subterranean formation, comprising:
- obtaining an estimated dip field of the subterranean formation, wherein the estimated dip field represents a measure of deviation of a stratigraphic layer from flat;
- extracting, by a computer processor, a matrix data item surrounding a voxel of the seismic data, wherein the matrix data item is extracted from the seismic data based on a value of the estimated dip field surrounding the voxel;
- generating, by the computer processor, modified seismic data, the generating comprising:
- applying a matrix operator to the seismic data,
- wherein the matrix operator calculates a partial derivative of the seismic data using the matrix data item;
- and
- displaying the modified seismic data.
A system for visualizing seismic data of a subterranean formation, comprising:
- a seismic data processing module executing on a computer processor and configured to:
- obtain an estimated dip field of the subterranean formation, wherein the estimated dip field represents a measure of deviation of a stratigraphic layer from flat;
- extract a matrix data item surrounding a voxel of the seismic data, wherein the matrix data item is extracted from the seismic data based on a value of the estimated dip field surrounding the voxel;
- and
- generate modified seismic data, wherein generating the modified seismic data comprises:
- apply a matrix operator to the seismic data,
- wherein the matrix operator calculates a partial derivative of the seismic data using the matrix data item;
- and
- a display device configured to display the modified seismic data.
A non-transitory computer readable medium storing instructions for visualizing seismic data of a subterranean formation, the instructions when executed causing a processor to:
- obtain an estimated dip field of the subterranean formation, wherein the estimated dip field represents a measure of deviation of a stratigraphic layer from flat;
- extract a matrix data item surrounding a voxel of the seismic data, wherein the matrix data item is extracted from the seismic data based on a value of the estimated dip field surrounding the voxel;
- generate modified seismic data, wherein generating the modified seismic data comprises:
- applying a matrix operator to the seismic data,
- wherein the matrix operator calculates a partial derivative of the seismic data using the matrix data item;
- and
- displaying the modified seismic data.
Dependencies are inferred from the claim text.