Method for predicting the best and worst in a set of non-unique solutions
US8126648B2 · kind B2 · utility
3Cited by
59References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/306
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for determining best and worst cases for values of model parameters such as porosity and shale volume fraction generated by non-unique matrix inversion of physical data such as seismic reflection amplitudes. The matrix is diagonalized, and then orthonormal basis vectors associated with insignificant diagonal elements are used to generate upper and lower bounds on the solution. Best and worst case solutions are determined as linear combinations of the null basis vectors, where the expansion coefficients are determined by making a best fit to the upper and lower bounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.