Control apparatus and method for controlling the rate of liquid

Details Control apparatus and method for controlling the rate of liquid Control apparatus and method for controlling the rate of liquid

1997-10-24

1999-12-07

Neuder, William

Wells

Processes

With indicating, testing, measuring or locating

166 6805, 16625015, 73290R, 417 63, E21B 4300, E21B 4704

Patent

active

059966912

ABSTRACT:
A method and apparatus for controlling the level efficiently, and rate of removal of water from an oil or gas well using a progressive cavity pump operated by a rotating drive shaft extending downwardly from ground level to the pump comprises a sensor that detects the downward force on the shaft produced by the dynamic operation of the pump; and a control mechanism responsive to the output from the sensor that correlates the downward force on the pump with liquid depth in the casing and controls pump speed in order to achieve a desired rate of liquid removal from the casing and a desired ultimate depth level of liquid in the casing above the pump. A novel fluid pressure sensing mechanism mounted on the shaft at ground level permits the shaft to rotate while providing an accurate reading of the downward force on the shaft. Computerized controls receive the pressure signals from the sensing mechanism and control the rate of operation of the pump motor in order to achieve a desired rate of pump operation to efficiently produce a desired rate of pump down and a desired liquid depth in the casing. Preferably, all of these elements are installed and maintained above ground.

REFERENCES:
patent: 4171016 (1979-10-01), Kempton
patent: 4389164 (1983-06-01), Godbey et al.
patent: 4854164 (1989-08-01), Rhoads
patent: 5143153 (1992-09-01), Bach et al.
patent: 5490564 (1996-02-01), Schultz et al.
patent: 5634522 (1997-06-01), Hershberger
patent: 5820350 (1998-10-01), Mantey et al.

Affiliated with

Also associated with

Rating

Control apparatus and method for controlling the rate of liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control apparatus and method for controlling the rate of liquid , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus and method for controlling the rate of liquid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-813542