ARTIFICIAL LIFT METHOD FOR LOW PRESSURE SAGD WELLS
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Dec 26, 2012
filing date -
Dec 26, 2012
priority date (Note) -
Abandoned
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Abstract
A pumping system includes a hydraulic motor assembly configured to drive a production pump. The hydraulic motor assembly includes a master pump located on the surface and an electric motor configured to controllably power the master pump. When moved by the electric motor, the master pump discharges a working fluid under pressure. The pressurized working fluid is transferred to a hydraulic turbine located in the wellbore. The hydraulic turbine converts the pressure of the working fluid into torque, which is transferred through a driveline to a production pump. The production pump pressurizes production fluids, which are carried under pressure to the surface.
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