Method of laying lined pipeline
US10274108B2 · kind B2 · utility
3Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Feb 29, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/181
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method lays lined pipeline which actively and successfully removes air pockets which might be trapped in the annulus between the liner and the host pipe by progressively flooding the lined pipeline. Further, the liner is brought into closer contact and engagement with the host pipe. The removal of air in the annulus enables the pipeline test pressure to stabilize more quickly and avoids the risk of potential collapse during operational service life in the event the pipeline pressures fluctuate or a vacuum is created during an emergency shutdown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.