Subea pipeline blockage remediation method
US6939082B1 · kind B1 · utility
36Cited by
14References
19Claims
0Family size
Inventor
Key dates
| Filing date | Sep 20, 1999 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Sep 20, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L53/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The method of taking a remotely operated vehicle to the ocean floor to land on and move along a subsea pipeline above or below the seafloor and repeatedly circulate seawater which has been heated electrically, mechanically, or chemically across the outer surface of the pipeline to melt hydrates or paraffins which have formed on the inside of the pipeline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.