Reciprocating pump systems
AssigneeNational Oilwell Varco, L.P.
InventorSamuel S. Wu
Life of this patent
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Abstract
A reciprocating pump system includes a reciprocating pump including a fluid end configured to receive a suction fluid flow and discharge a discharge fluid flow, and a suction booster assembly coupled to the fluid end, the suction booster assembly including a venturi including a venturi passage, and a jet configured to jet a fluid received from the discharge of the fluid end into the venturi passage, wherein the suction booster assembly is configured such that the jet of the suction booster assembly jetting the fluid into the venturi passage increases the pressure of the suction fluid flow.
Claims21
A reciprocating pump system, comprising:
- a reciprocating pump including a fluid end configured to receive a suction fluid flow and discharge a discharge fluid flow;
- and
- a suction booster assembly coupled to the fluid end, the suction booster assembly comprising:
- a venturi including a venturi passage;
- and
- a jet configured to jet a fluid received from the discharge of the fluid end into the venturi passage;
- wherein the suction booster assembly is configured such that the jet of the suction booster assembly jetting the fluid into the venturi passage increases the pressure of the suction fluid flow.
A jet pump for increasing suction pressure of a reciprocating pump, comprising:
- a venturi including a venturi passage;
- and
- an inlet adapter coupled to the venturi and comprising a central passage and an angled passage that receives a jet, wherein the jet includes a nozzle extending along a jet axis disposed at a non-zero angle to a central axis of the venturi passage.
The jet pump of claim 15, wherein the jet axis intersects the central axis of the venturi passage of the jet pump at a location in the venturi passage that, in a side view of the venturi passage, is defined by the diverging section of the inner surface of the venturi passage.
A method for increasing suction pressure of a reciprocating pump, comprising:
- (a) diverting a portion of a discharge fluid flow from a discharge line coupled to the reciprocating pump;
- (b) increasing a flow velocity of the diverted discharge fluid flow by jetting the diverted discharge fluid flow from a nozzle of a jet;
- (c) jetting the diverted discharge fluid flow into a suction fluid flow;
- and
- (d) flowing the suction fluid flow through a venturi passage.
Dependencies are inferred from the claim text.