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1. (WO2016059175) DOWNHOLE LIFT GAS INJECTION SYSTEM

Pub. No.:    WO/2016/059175    International Application No.:    PCT/EP2015/073920
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Fri Oct 16 01:59:59 CEST 2015
IPC: E21B 43/12
Applicants: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
SHELL OIL COMPANY
Inventors: LUGTMEIER, Lubbertus
Title: DOWNHOLE LIFT GAS INJECTION SYSTEM
Abstract:
A downhole lift gas injection valve(42) is retrievably connected to a downhole hanger device(28) from which a lift gas injection conduit(58) is suspended within a production tubing(12) of a hydrocarbon fluid production well, wherein the valve(42) receives the lift gas from an annular space(14) surrounding the tubing(12) via a side inlet(26) in the production tubing(12) and a tubular packer device (66) is retrievably connected to an upper end of the hanger device(28) to seal the side inlet(26) from a space(72) in the production tubing(12) above the packer device(66).