DOUBLE-ACTION PUMPING SYSTEM WITH HYDRAULIC DRIVE FOR EXTRACTION OF FLUIDS FROM INCLINED WELL Russian patent published in 2022 - IPC F04B47/08 

FIELD: engines and pumps.

SUBSTANCE: group of inventions relates to a double-action pump system with a hydraulic drive for extraction of fluids from an inclined well. System 100 has a hydraulic double-acting linear reciprocating engine, located in the center between the double-acting liquid pumps on each side of the engine and connected to them, with the pistons of each of the pumps and the engine, completely located in annular space between the inner wall of the cylindrical housing of the installation and the outer wall of the cylindrical pipeline of the produced fluid, located concentrically inside housing, for pumping of well fluid from outside of structure through pumps into central pipeline of produced fluid. Speed and direction of hydraulic fluid flow through the drive can be controlled by means of VFD motors and a PLC controller on the ground, as well as by means of at least one electromechanical valve and two limit switches installed on downhole components.

EFFECT: group of inventions is aimed at providing the possibility to minimize hydraulic impact acting on the pipeline, or to avoid it.

10 cl, 8 dwg