Method for determining improved estimates of properties of a model
First Claim
1. A method for determining improved estimates of properties of a model using a mathematical inversion, the method comprising the steps of:
- (a) receiving estimated prior constraints for at least one model property,(b) performing a first mathematical inversion on data for the model, using the estimated prior constraints, to produce an output posterior estimate of the at least one property,(c) repeating the inversion at least once, using the output posterior estimate of any of the previous inversions to provide an input constraint for each successive inversion, to produce an improved posterior estimate of the at least one property.
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Abstract
A method is disclosed for determining improved estimates of properties of a model, on the basis of estimated prior constraints, by running a mathematical inversion several times using the output posterior estimate of the previous inversion, or any of the previous inversions to provide an input for the next inversion. This iterative inversion may be repeated until the prior and posterior estimates converge to within a given threshold. The method may be applied to seismic data, using a seismic inversion, in order to improve the prediction of the viability of potential petroleum reservoirs by determining improved estimates of volumetric properties of a subsurface region.
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Citations
18 Claims
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1. A method for determining improved estimates of properties of a model using a mathematical inversion, the method comprising the steps of:
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(a) receiving estimated prior constraints for at least one model property, (b) performing a first mathematical inversion on data for the model, using the estimated prior constraints, to produce an output posterior estimate of the at least one property, (c) repeating the inversion at least once, using the output posterior estimate of any of the previous inversions to provide an input constraint for each successive inversion, to produce an improved posterior estimate of the at least one property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification