Progressive cavity pump for downhole inflatable packer
Patent
·
OSTI ID:5184590
This patent describes a downhole inflatable packer pump. It comprises: case means for attaching to a lower testing string portion and having an inlet and an outlet, the outlet being communicable with an inflatable packer at a location below the pump; mandrel means, rotatably disposed within the case means, for connecting to an upper testing string portion for mutual rotation therewith and rotating within the case means; an elastomeric pump stator disposed in the case means, the stator having a convoluted inner surface; a rotor extending form the mandrel means and into the stator, the rotor having a convoluted outer surface, the stator and rotor defining a plurality of cavities therebetween, whereby rotation of the rotor within the stator moves fluid progressively from cavity to cavity and thereby from the inlet to the outlet; passageway means for providing fluid communication between the lower testing string portion and the upper testing string portion, the passageway means being sealing separated from the cavities.
- Assignee:
- Halliburton Co., Duncan, OK (United States)
- Patent Number(s):
- A; US 5097902
- Application Number:
- PPN: US 7-602453
- OSTI ID:
- 5184590
- Country of Publication:
- United States
- Language:
- English
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