Method and system for injection of viscous unweighted, low-weighted, or solids contaminated fluids downhole during oilfield injection process
US8714253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0057
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for injecting a fluid into a formation including a fluid, and at least one injection pump configured to receive the fluid, the at least one pump including a centrifugal pump having at least two stages configured to increase the pressure of the received fluid is disclosed. The system further includes a drive device coupled to the injection pump. A method of injecting a fluid downhole including providing a fluid to an injection pump, the injection pump including a centrifugal pump having at least two stages, pumping the fluid through the at least two stages of the centrifugal pump, thereby increasing the pressure of the fluid, and injecting the fluid from the injection pump into a wellbore is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.