Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore
US10544662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Aug 2, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/143
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A submersible, hydraulically actuated, multi-stage double-acting positive displacement pump system is provided. The system has a hydraulically actuated reciprocating linear double-acting motor centrally disposed between and connected to double-action fluid pumps on either side of the motor, with pistons of each of pump and the motor all in the annular space between an inner wall of the apparatus' cylindrical body and the outer wall of a cylindrical production fluid conduit concentrically disposed within the body, to pump wellbore fluid from outside the assembly through the pumps and into the central production fluid conduit. The rate and direction of hydraulic fluid flow through the actuator may be controlled by VFD motors and PLC controller on the ground, and through at least one electromechanical valve and two limit switches mounted to the downhole components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.