08141625 is referenced by 14 patents and cites 12 patents.

A submersible well pump assembly in a wellbore; the pump assembly includes a liquid lift pump and a booster pump for pumping a two-phase mixture of gas and liquid. A shroud with an opening at its upper end partially encloses the pump assembly. An annulus is formed between the shroud and the wellbore inner circumference. Two phase fluid from the booster pump exits the shroud through a port and flows up the annulus to the shroud opening. Liquid in the two-phase flow separates from the gas and flows into the shroud opening and onto the liquid lift pump. The gas continues to flow up the wellbore, past the shroud opening, to the wellbore entrance.

Title
Gas boost circulation system
Application Number
12/486561
Publication Number
8141625 (B2)
Application Date
June 17, 2009
Publication Date
March 27, 2012
Inventor
Leslie C Reid
Coweta
OK, US
Agent
Bracewell & Giuliani
Assignee
Baker Hughes Incorporated
TX, US
IPC
F04B 23/08
E21B 43/00
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