Rotational wellbore ranging
US9958567B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/092
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one example of rotational ranging in a wellbore in which a wellbore component having an axis of rotation is disposed, a wellbore ranging sensor is disposed on a circumferential area surrounding the axis of rotation. The sensor is moved on the circumferential area to multiple distinct sensing positions. At each sensing position, a magnetic field from another wellbore that is apart from the wellbore is measured resulting in multiple magnetic field measurements at the multiple distinct sensing positions. The multiple magnetic field measurements are provided to determine a position of the wellbore relative to the other wellbore using at least a subset of the multiple magnetic field measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.