Suction-type ocean-floor wellhead
US4830541A · kind A · utility
31Cited by
26References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1986 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | May 30, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellhead apparatus and a method for positioning the apparatus on the ocean floor in combination with means for sinking it into the ocean floor. The wellhead apparatus is equipped with a venturi suction device and a central opening for receiving a well conductor pipe. The apparatus provides a well base structure that is highly stable, capable of taking high vertical and lateral loads, and can be controlled during installation to be either truly plumb or positioned at a predetermined angle relative to the vertical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.