Class 417/110 - With pumped fluid velocity or flow responsive valve operating means

Subclass of Class 417 - Pumps
Definition: Apparatus having (1) fluid impinging means in the flow path
No. of patents: 3
Last issue date: 12/22/1992

Number	Title	Issue Date
5172717	Well control system An electrically actuated downhole system for controlling and monitoring the flow of gas from a gas lift petroleum well in which a borehole penetrates at least two spacially separated geological production zones, and at least two strings of parallel tubing...	12/22/1992
4364232	Flowing geothermal wells and heat recovery systems The flow performance of the geothermal wells represents the ability of the wells to produce useful heat. A liquid-dominated geothermal well can be made to flow by introducing a primary fluid at a selected level in the well. In the process disclosed herein...	12/21/1982
4087207	Method and apparatus for gas induced production of liquid from wells A method of achieving gas induced production of liquid from wells wherein the wells have a production tubing string extending to a production formation wherein such wells may have insufficient gas production for achieving continuous production of liquids ...	05/02/1978

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