Accelerometer caliper while drilling
US6467341B1 · kind B1 · utility
33Cited by
70References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An accelerometer caliper while drilling arrangement comprising a drill bit having an axis of rotation and a gauge region, a caliper tool body, a first accelerometer mounted upon the caliper tool body and arranged to measure acceleration in a first direction, and a second accelerometer mounted upon the caliper tool body and arranged to measure acceleration in a second direction orthogonal to the first direction, wherein the caliper tool body and the drill bit are coupled to one another in such a manner that the first and second accelerometers are mounted in a known relationship to the drill bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.