Method for underground-reservoir fluids production with pump drive contained within the wellbore
US5860795A · kind A · utility
7Cited by
20References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is a method for producing reservoir fluids from an underground reservoir through the wellbore. The method includes the steps of intaking the gas phase from the wellbore into the wellbore-contained pump drive, powering the pump drive using the gas pressure of the gas phase in the wellbore, pumping the liquid phase from the wellbore towards the surface by a first pump and exhausting the gas phase from the pump drive towards the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.