Measurement tool for obtaining tool face on a rotating drill collar
US7414405B2 · kind B2 · utility
13Cited by
103References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2005 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Sep 2, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for obtaining tool face angles on a rotating drill collar in substantially real time is disclosed. In one exemplary embodiment the apparatus includes a magnetoresistive magnetic field sensor deployed in a tool body. The apparatus further includes a programmed processor configured to calculate tool face angles in substantially real time from the magnetic field measurements. The programmed processor may optionally further be configured to correlate the calculated tool face angles with logging while drilling measurements for use in borehole imaging applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.