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US 2014/0180656 A1Published application
Artifact Reduction in Iterative Inversion of Geophysical Data
AssigneeExxonMobil Upstream Research Company
InventorsJerome R. Krebs, Sunwoong Lee, Young Ho Cha
Life of this patent
Estimating the term…
Abstract
Method for reducing artifacts in a subsurface physical properties model (120) inferred by iterative inversion (140) of geophysical data (130), wherein the artifacts are associated with some approximation (110) made during the iterative inversion. In the method, some aspect of the approximation is changed (160) as the inversion is iterated such that the artifacts do not increase by coherent addition.
Claims14
1-15. (canceled)
A method comprising:
- using an approximation in a computer implemented iterative geophysical data inversion, wherein the approximation is other than source encoding, and the approximation is made in at least one of (i) processing or selecting measured data to invert, or (ii) parameterization of a subsurface model, or (iii) simulation of synthetic data to compare to measured data;
- and
- varying, with the computer, the approximation in iterative cycles of the iterative geophysical data inversion, wherein the varying causes an artifact in updated subsurface models to not coherently add in leading to a final subsurface model as the iterative geophysical data inversion progresses.
Dependencies are inferred from the claim text.