Capsule for two downhole pump modules
US7736133B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Apr 16, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Upstream and downstream pump assemblies are mounted in a capsule having a bulkhead between the upstream and downstream pump assemblies, dividing the capsule into upstream and downstream chambers sealed from each other. In a dual operation mode, well fluid flows through the inlet of the capsule into the upstream chamber, where it is pumped to a first pressure level by the upstream pump assembly and discharged into the downstream chamber. The downstream pump assembly then pumps the well fluid to a second pressure level and discharges the well fluid out the outlet of the capsule. The assembly has also an upstream pump assembly only operational mode and a downstream pump assembly only operational mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.