Centralizer-based survey and navigation device and method
US7870912B2 · kind B2 · utility
4Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2009 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Aug 17, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1057
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A Centralizer based Survey and Navigation (CSN) device designed to provide borehole or passageway position information. The CSN device can include one or more displacement sensors, centralizers, an odometry sensor, a borehole initialization system, and navigation algorithm implementing processor(s). Also, methods of using the CSN device for in-hole survey and navigation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.