External jet pump for dual gradient drilling
US8403059B2 · kind B2 · utility
10Cited by
90References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Apr 28, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/126
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus comprises a jet pump assembly affixed to a riser string and to a blowout preventer. The jet pump assembly comprises a conduit and a sealing assembly configured to accelerate a drilling fluid's return flow by a power fluid delivered by an umbilical connected to the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.