Submersible pipe installation systems
US4313694A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Oct 23, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In general, the present invention provides processes and apparatus for bending and straightening or otherwise installing marine pipelines at underwater installations, and includes systems in which marine pipelines are installed at water depths to 250 feet or more, utilizing an underwater chamber which may be operated with its interior wet, dry or combinations thereof. In one form, the system provides for interconnecting wellheads or other stations with manifolds or other stations and comprises running marine pipeline generally vertically downwardly from the water surface into the work chamber, mounted in operative association with an underwater wellhead or station, wherein the pipe is bent in the desired radius and through the desired angle and then straightened to exit from the chamber and wellhead in a substantially horizontal attitude such that it may then be pulled to a manifold or other underwater station with, for example, a wire line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.