Downhole pump with retrievable nozzle assembly
This paper describes improvement in a system for producing fluid from a wellbore wherein a downhole jet pump has a main body with there being a passageway extending therethrough and the passageway having an upper end opposed to a lower end; there being power fluid inlet means at the upper end of the passageway for connecting the pump to a source of power fluid, formation fluid inlet means at the lower end of the passageway for connecting the pump to a source of formation fluid; and a produced fluid outlet through which spent power fluid admixed with formation fluid can flow. The improvement comprises: the pump includes a nozzle and a throat affixed together in spaced relationship respective to one another and forming a unitary assembly for producing formation fluid in response to power fluid flowing therethrough; a seating cavity formed between the upper end and the lower end of the passageway; the seating cavity is axially aligned with the upper end of the passageway; the seating cavity having an upper cylindrical part spaced from a lower cylindrical part with there being a formation fluid working chamber formed therebetween and connected to the formation fluid inlet.
- Assignee:
- NOV; NOV-92-003322; EDB-92-065741
- Patent Number(s):
- US 5055002; A
- Application Number:
- PPN: US 7-614052
- OSTI ID:
- 5519804
- Resource Relation:
- Patent File Date: 9 Nov 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Progressive cavity pump for downhole inflatable packer
Cell assembly for determining conductivity and permeability