Subterranean formation monitoring using frequency domain weighted analysis
US9921326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Feb 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/324
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed method includes receiving resulting signals emanating from a subterranean formation, wherein the resulting signals are caused by signals emitted from seismic sources. The method further includes dividing the resulting signals into a plurality of sub-samples. The method includes determining a frequency content of one or more of the sub-samples and assigning a weight to or more components of the frequency content of the sub-sample to produce a weighted frequency content of the sub-sample, wherein the assigned weight is based, at least in part, on an estimate of the amount of noise present in the frequency content of the sub-sample. The method further includes combining the weighted frequency contents of the sub-samples to produce a weighted sample. The method further includes determining one or more properties of the subsurface formation based, at least in part, on the weighted sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.