Analysis of drillstring dynamics using an angular rate sensor
US10480304B2 · kind B2 · utility
1Cited by
16References
49Claims
0Family size
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Key dates
| Filing date | Oct 12, 2012 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jun 29, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Downhole drilling vibration analysis uses an angular rate sensor on a drilling assembly. During drilling operations, the sensor measures the angular rate of the drilling assembly. Processing circuitry is operatively coupled to the angular rate sensor and is configured to determine whether torsional type vibrations are occurring during drilling based on the angular rate data. Drilling operations can then be modified to overcome or mitigate the torsional type vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.