Device for pumping a fluid at the bottom of a well
US4957161A · kind A · utility
11Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | May 15, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2/1073
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The device comprises a tubing (4) whose lower end is connected to a seat (5) on which bears a gear pump (6). The pump (6) comprises a pump case whose lower portion (10a) is engaged in a bore (5b) of the pump seat (5) and is connected to a cylindrical heavy body (20) which facilitates placing the pump (6) in position and maintaining the pump (6) on the seat (5). The weight of the heavy body (20) is determined as a function of the gear pump characteristics. The invention may be applicable to the pumping of petroleum fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.