METHOD AND APPARATUS FOR CAUSING PRESSURE VARIATIONS IN A WELLBORE

Details for Australian Patent Application No. 2003249815 (hide)

Owner SELINGER, Richard

Inventors THICKE, Brian, R.; SCHOETTLER, Michael, F.; SELINGER, Richard; ANDERSON, Clifford, J.

Pub. Number AU-A-2003249815

PCT Number PCT/CA03/01086

PCT Pub. Number WO2004/009955

Priority 10/205,286 24.07.02 US

Filing date 18 July 2003

Wipo publication date 9 February 2004

International Classifications

E21B 043/00 Obtaining fluids from wells

E21B 043/12 Obtaining fluids from wells - Methods or apparatus for controlling the flow of the obtained fluid to or in wells

E21B 034/08 Valve arrangements for boreholes or wells

E21B 043/26 Obtaining fluids from wells

Event Publications

16 October 2003 Complete Application Filed

  Priority application(s): 10/205,286 24.07.02 US

18 March 2004 Application Open to Public Inspection

  Published as AU-A-2003249815

7 April 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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