Wireline-deployed positive displacement pump for wells
US10221663B2 · kind B2 · utility
2Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Apr 12, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed techniques include a method of removing wellbore liquid from a wellbore that extends within a subterranean formation, comprising positioning a pump downhole in the wellbore, electrically powering the pump, expanding and contracting a membrane by pumping a fluid with the pump, wherein expanding and contracting the membrane creates a pressure for removing the wellbore liquid from the well, and removing the wellbore liquid from the well using the pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.