Extruded aliphatic polyketone permeation barrier for spoolable composite pipes
US12169043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2022 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | May 9, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2597/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Spoolable composite pipes for oil and gas flowlines may include an inner extruded tubular liner, a reinforcement layer surrounding the inner extruded tubular liner, and an outer extruded tubular cover surrounding the reinforcement layer. In these spoolable composite pipes, the inner extruded tubular liner may include an aliphatic polyketone. Internally lined pipes for oil and gas flowlines for oil and gas flowlines may include inner extruded tubular liner containing an aliphatic polyketone, and a carbon steel pipe surrounding the inner extruded tubular liner. The spoolable composite pipes and the internally lined pipes may be configured to operate at temperatures of up to about 110° C., and to carry hydrocarbons having an aromatic content of up to about 35% by volume of the total hydrocarbons content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.