Pumpsystem und -Verfahren

Details

Veröffentlichungs-Nr.

EP3128123

Aktenzeichen

EP16183114

Anmeldetag

5. August 2016

Veröffentlichung

29. Juli 2020

Erteilung

29. Juli 2020

Rechtsraum

EP

IPC

E21B43/12

Abstract

A hydraulic pumping system can include a hydraulic actuator with a magnet that displaces with a piston, and a sensor that continuously detects a position of the magnet. A ferromagnetic wall of the hydraulic actuator is positioned between the magnet and the sensor. A hydraulic pumping method can include incrementally lowering a lower stroke extent of a rod string reciprocation over multiple reciprocation cycles of the rod string, and automatically varying the lower stroke extent or an upper stroke extent of the rod string reciprocation, in response to a measured vibration. Another hydraulic pumping method can include solving a wave equation in the rod string, and automatically varying a reciprocation speed of the rod string in response to a change in work performed during reciprocation cycles of the hydraulic actuator or a change in detected force versus displacement in different reciprocation cycles of the hydraulic actuator.

Anmelder

Firmen

Weatherford Technology Holdings, LLC
Amfields, LP

Land

🇺🇸 USA

Fachgebiete