Processing downhole rotational data
US11187714B2 · kind B2 · utility
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14References
20Claims
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Key dates
| Filing date | Jul 9, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Feb 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for processing downhole rotational data. An example method includes commencing operation of a processing device to continually calculate a downhole oscillation index by receiving downhole rotational speed data indicative of downhole rotational speed of at least a portion of a drill string during drilling operations, calculating a fundamental oscillation time period of the drill string, calculating a time length of a time window based on the fundamental oscillation time period, and processing the downhole rotational speed data encompassed within the time window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.