Multi-phase flow pumping means and related methods
AssigneeUnitec Institute of Technology
InventorMouafak Arif Zaher
Life of this patent
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Abstract
A method of pumping and related arrangement for multi-phase fluid flow wherein a centrifugal pump is used for the suction and delivery of the multi-phase fluid which has a fluid communication providing portion to provide a communication of fluid bled from the outlet at a higher pressure to be injected into the inlet conduit of the centrifugal pump in operation. The centrifugal pump is provided with an impeller which has a plurality of vanes configured to define there between larger passageways when compared to a conventional centrifugal pump which would operate in or near optimum conditions when pumping liquid only.
Claims16
A pumping arrangement for pumping a pre-established multi-phase fluid flow, said arrangement comprising:
- a centrifugal pump which has engaged thereto, a fluid inlet pipe connected in fluid communication with a multi-phase fluid source and an outlet pipe and said centrifugal pump being driveable by a power providing means,
- a fluid communication providing means to provide a communication of fluid between said outlet pipe and said inlet pipe, said fluid communication being such as to provide a fluid connection between said outlet pipe and said inlet pipe to deliver higher pressure multi-phase fluid from said outlet pipe into the lower pressure multi-phase fluid at said inlet pipe upstream of said centrifugal pump, when said centrifugal pump is in operation,
- wherein said centrifugal pump includes an impeller which has a plurality of vanes configured to define there between one of three and four impeller vane separated passageways.
A method of pumping pre-established multi-phase fluid flow, said method comprising:
- providing a centrifugal pump which has engaged thereto a fluid inlet pipe connected in fluid communication with a multiphase fluid source and an outlet pipe through which said fluid is delivered,
- providing a power providing means to rotate the impeller of said centrifugal pump, and
- bleeding a portion of fluid from the outlet pipe and delivering the bled higher pressure multiphase fluid via a fluid connection providing means to said inlet pipe to be injected into the lower pressure main multiphase fluid flow into said centrifugal pump,
- wherein said centrifugal pump is provided with an impeller which has a plurality of vanes configured to define there between one of three and four impeller vane separated passageways.
A pumping arrangement in a ducted pre-established multi-phase fluid flow system, said arrangement comprising:
- a centrifugal pump which has engaged thereto a fluid inlet pipe connected in fluid communication with a multiphase fluid source and an outlet pipe and driveable by a power providing means,
- a fluid communication providing means to provide a communication of fluid between said outlet pipe and said inlet pipe, said fluid communication means providing a fluid connection between said outlet pipe and said inlet pipe to deliver higher pressure multiphase fluid from said outlet pipe into the lower pressure multiphase fluid at to said inlet pipe when said centrifugal pump is in operation,
- wherein said centrifugal pump is provided with an impeller which has a plurality of vanes configured to define there between one of three and four impeller vane separated passageways.
Dependencies are inferred from the claim text.