Methods and systems for automated pipeline testing
US6822432B2 · kind B2 · utility
7Cited by
3References
44Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for testing a cathodic protection system includes a cathodic protection rectifier configured to apply a voltage across a pipeline and a reference point. The method includes measuring a magnitude of an output voltage of the cathodic protection rectifier, transmitting to a site remote from the rectifier, the measured output voltage magnitude using a cellular control channel, receiving the transmitted measurement at the remote site, and using the transmitted measurement to determine whether the cathodic protection system is operational.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.