Vibration detection in a drill string based on multi-positioned sensors
US10060248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Sep 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In some example embodiments, a system includes a drill string having a drill bit. The drill string extends through at least part of a well bore. The system also includes a first vibrational sensor, positioned on the drill bit to measure, at a first location on the drill string, an amplitude of one or more of an axial vibration and a lateral vibration. The system also includes a second vibrational sensor, positioned above the drill bit and on the drill string. The second vibration sensor is to measure, at a second location on the drill string, one or more of an axial vibration and a lateral vibration. The system includes a processor unit to determine a type of vibration based on a comparison of the amplitude at the first location to the amplitude at the second location, wherein the type of vibration is at least one of bit whirl of the drill bit and a while of a bottom hole assembly that is part of the drill string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.