Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1986-03-27
1988-05-17
Croyle, Carlton R.
Pumps
One fluid pumped by contact or entrainment with another
Jet
417176, F04F 500
Patent
active
047447303
ABSTRACT:
A downhole pump of the jet type is placed below the fluid level in a wellbore and is used to produce fluid from the wellbore by employment of a power fluid source located above the surface of the ground. The power fluid flows downhole to the pump and through the jet pump assembly to cause a pumping action. The jet pump includes a suction chamber formed about a nozzle assembly. The nozzle assembly is spaced from a venturi throat. The venturi throat diverges in a direction away from the nozzle. The nozzle is located close to the bottom of the pump adjacent the formation fluid inlet at a position which precludes contamination thereof with debris which may otherwise fall downhole into the nozzle. The power fluid exits from the nozzle and enters the inlet of the venturi, causing produced fluid to be pulled into the throat entrance and mixed with the power fluid. The mixed fluids continue to flow through the throat and out the venturi as the mixed fluids are forced to continue through the pump and then uphole to the surface of the earth. The pump includes a single nozzle as well as multiple nozzle and throat combinations.
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Bates Marcus L.
Croyle Carlton R.
Neils Paul F.
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