Electric power supply for use downhole
US5149984A · kind A · utility
35Cited by
21References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole electrical power supply apparatus has a high fluid pressure source zone and a low fluid pressure discharge zone each defined at least partially within the apparatus. A fluid powered engine provides rotational mechanical output and is powered by fluid flowing from the source zone through the engine to the discharge zone. An electrical powered generator converts the rotational mechanical output of the engine into electrical output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.