Nozzle for gas choking
AssigneeRGL Reservoir Management Inc.
InventorDa Zhu
Life of this patent
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Abstract
A nozzle for controlling the flow of a gas component of a fluid produced from a hydrocarbon-bearing reservoir, the fluid comprising oil and gas, comprises a fluid passage extending between an inlet and an outlet, wherein the fluid passage comprises a constriction for choking the flow of the gas component of the fluid.
Claims26
A nozzle for controlling flow of a gas component of a fluid comprising a mixture of oil and gas, into a pipe, the pipe having at least one port along its length, the nozzle being adapted to be located on the exterior of the pipe and adjacent one of the at least one port, the nozzle comprising:
- a body having an inlet, an outlet, and a fluid conveying passage extending between the inlet and outlet;
- wherein, the passage comprises:
- a first region having a converging-diverging region forming a throat, the throat being proximal to the inlet and defining a constriction in the passage;
- and,
- a second region downstream of the first region having a gradually increasing cross-sectional area extending towards the outlet.
An apparatus for controlling flow, from a subterranean reservoir, of a gas component, of a fluid comprising a mixture of oil and gas, the apparatus comprising:
- a pipe segment having at least one port along its length;
- at least one nozzle located on the exterior of the pipe and adjacent one of the at least one port;
- and,
- and a means for locating the nozzle on the pipe adjacent the port;
- wherein the nozzle comprises:
- a body having an inlet, an outlet, and a fluid conveying passage extending between the inlet and outlet;
- wherein, the passage comprises:
- a first region having a converging-diverging region forming a throat, the throat being proximal to the inlet and defining a constriction in the passage;
- and,
- a second region downstream of the first region having a gradually increasing cross-sectional area extending towards the outlet.
A method of producing fluids from a subterranean reservoir, the method comprising:
- a) flowing the fluids through a first, converging-diverging region of a nozzle;
- and
- b) flowing the fluids through a second, diverging region of the nozzle, wherein the second region has a gradually increasing cross-sectional area.
Dependencies are inferred from the claim text.