F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/41
F04B 47/06 (2006.01) F04B 47/02 (2006.01)
Patent
CA 1111311
DEEP WELL PUMP ABSTRACT OF THE DISCLOSURE A pump barrel is open at its lower end and is coupled at its upper end by a tubular adapter assembly to the lower end of a pump tubing string, this assembly presenting an internally bevelled sealing-latching annulus, an axially bored pump head being radially expansively spring latched in a fixed axial sealed relation with the annulus to seal the upper end of the pump barrel from the adapter assembly to form a pump compres- sion chamber surrounding a hollow polish rod extending upwardly from a plunger mounted on the lower end of the polish rod for reciprocation in the pump barrel, the plunger carrying tandem travelling valves close beneath its connection with the polish rod, the lower valve opening to receive oil through the barrel and plunger on the down stroke and concurrently delivering such oil into the compression chamber, the upper valve closing on the down stroke and opening on the up stroke during which the lower valve closes to expel oil trapped in the compression chamber upward through the upper valve into the lower end of the hollow polish rod which oil is discharged at the upper end thereof into the pump tubing string through the fitting adapting the polish rod to the lower end of the sucker rod. The invention enjoys the following unique advantages: 1. The pump barrel, tubular adapter assembly with locking sealing annulus, containing the axially bored pump head, the hollow polish rod extending slidably through this, the tandem valved plunger slideable in the pump barrel and connected to the lower end of the polish rod, all this, rest upon and are latched to the head sealing annulus and suspended from the tubing string as it is lowered dry into the well.
349323
Downen Jim L.
Sutliff Wayne N.
Downen Jim L.
Fetherstonhaugh & Co.
Sutliff Wayne N.
LandOfFree
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