Detecting stick-slip using a gyro while drilling
US9222308B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Jun 21, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Feb 21, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for drilling operation in a subterranean formation, including calculating, by a hardware processor and in response to determining that an magnitude of gyro data representing rotations of a drill bit in a bottom hole assembly (BHA) and a time derivative of the gyro data are within a pre-determined range, a drift parameter of the gyro data, analyzing, by the hardware processor, the gyro data based on the drift parameter to generate a stick-slip alert, and presenting the stick-slip alert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.