High-power well logging method and apparatus
US7154412B2 · kind B2 · utility
10Cited by
5References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V11/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power delivery system for a wireline tool includes two independent power transmission loops operating on a standard six-conductor cable. The two loops each connect directly to a respective terminals of a DC auxiliary power supply. Each loop also couples through a transformer to an AC instrument power supply. Another transformer for telemetry signals facilitates bidirectional communication between the downhole tool and an uphole computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.