Method for fabricating pipeline coating samples containing synthetic disbonds for estimating a condition of a coating of an underground pipeline
US7924032B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2010 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N17/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for fabricating pipeline coating samples containing synthetic disbonds to be used in estimating a condition of a coating of an underground pipeline. The method includes the steps of providing a section of a pipe having a predetermined diameter and length; installing end caps on opposing ends of the pipe section, each end cap having an electrical connection extending therefrom; applying a material having a low dielectric coefficient around the pipe segment between the end caps to simulate an air-filled disbond; varying the coverage area of material to simulate various disbond sizes; and wrapping the pipe segment and end caps with tape to cover the material having a low dielectric coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.