Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent
1976-05-11
1978-10-03
Freeh, William L.
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
417 43, 417 44, F04B 4900
Patent
active
041181484
ABSTRACT:
Operation of a downhole reciprocating oil well pump is controlled by displacement of the fluids discharged from the pump into a displacement cell closed at its upper end. Gas is trapped in the upper end of the displacement cell. Fluids flow from the lower end of the displacement cell through a dump valve into a flow line. The dump valve opens when the pressure in the displacement cell rises to a predetermined high pressure and remains open until the pressure drops to a predetermined lower pressure which may be the flowline pressure. Operation of the dump valve resets a timer that actuates a switch controlling a pumping unit that drives the downhole pump. Thus, control of the pumping unit is based on the volume of fluids displaced from the well by the pump.
REFERENCES:
patent: 3091179 (1963-05-01), Echols
patent: 3247798 (1966-04-01), Glasgow et al.
patent: 3854846 (1974-12-01), Douglas
patent: 3963374 (1976-06-01), Sullivan
Freeh William L.
Gulf Oil Corporation
LandOfFree
Downhole well pump control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Downhole well pump control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole well pump control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1799546