Analysis of drillstring dynamics using angular and linear motion data from multiple accelerometer pairs
US9567844B2 · kind B2 · utility
5Cited by
18References
35Claims
0Family size
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Key dates
| Filing date | Oct 10, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jul 1, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Downhole drilling vibration analysis uses angular and linear motion data on a drilling assembly. During drilling operations, pairs of accelerometers measure the angular and linear motion of the drilling assembly. Processing circuitry is operatively coupled to the accelerometer pairs and is configured to determine type and severity of vibrations occurring during drilling based on the angular and linear motion data. Drilling operations can then be modified to overcome or mitigate the detrimental vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.