Method for near-real-time, high-resolutionsignal filtering in noisy environments
US10459101B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | May 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for downhole signal filtering. A method for downhole signal filtering may comprise defining outliers as isolated values; providing thresholds; determining the outliers from a buffer; computing a difference in slowness between adjacent pairs of values; comparing the adjacent pairs of values to other values in a same window; determining if the adjacent pairs of values vary more than the threshold; assigning a 2D flag array a value of 0 if the adjacent pairs of values vary more than the threshold; and computing a 75% percentile distribution for each adjacent pair of values to determine if each adjacent pair of values are the outliers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.