Gas lift valve with central body ventury for controlling the flow of injection gas in oil wells producing by continuous gas lift

Details for Australian Patent Application No. 2002224686 (hide)

Owner Petroleo Brasileiro S.A.- Petrobras

Inventors Resense De Almeida, Alcino

Agent Griffith Hack

Pub. Number AU-B-2002224686

PCT Pub. Number WO2002/059485

Priority PI 0100140-0 23.01.01 BR

Filing date 17 January 2002

Wipo publication date 6 August 2002

Acceptance publication date 19 April 2007

International Classifications

F04F 1/20 (2006.01) Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped

E21B 34/06 (2006.01) Valve arrangements for boreholes or wells

E21B 34/10 (2006.01) Valve arrangements for boreholes or wells

E21B 43/12 (2006.01) Obtaining fluids from wells - Methods or apparatus for controlling the flow of the obtained fluid to or in wells

E21B 43/16 (2006.01) Obtaining fluids from wells - Enhanced recovery methods for obtaining hydrocarbons

F16K 15/02 (2006.01) Functional types - with guided rigid valve members

Event Publications

6 February 2003 Application Open to Public Inspection

  Published as AU-B-2002224686

19 April 2007 Application Accepted

  Published as AU-B-2002224686

16 August 2007 Standard Patent Sealed

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