Wellbore signal generator
US7441628B2 · kind B2 · utility
7Cited by
16References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2004 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jun 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for generating a signal with a signal generator comprising a tool body disposed in a tubular member. A first and second electromagnets are disposed within the tool body such that the second electromagnet is opposite the first electromagnet. A power supply selectively provides electrical current to the first and second electromagnets so as to displace the tubular member and generate a signal in the surrounding formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.