Subsea pump system
US5280766A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/606
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a subsea fluid extraction system, the wellhead equipment comprises an X-mas tree on a guide base, the tree having a borethrough which can be run and retrieved a pump unit including an electric motor driving an impeller, the pump unit being suspended from a pump hanger in the X-mas tree by an elongate electrical conductor assembly consisting of concentric tubular conductors with insulating sleeves therebetween. An outer tube spaced around the conductors provides a fluid passage communicating through the pump unit with a second passage within the conductors for circulation of barrier fluid. Electrical supply to the pump unit is effected by a female connector located at the side of the X-mas tree which mates with an upright connector element on a transformer on the guide base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.