Wellbore system

Details for Australian Patent Application No. 2008334603 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Kriesels, Petrus Cornelis

Agent Spruson & Ferguson

Pub. Number AU-B-2008334603

PCT Pub. Number WO2009/074632

Priority 07123096.5 13.12.07 EP

Filing date 11 December 2008

Wipo publication date 18 June 2009

Acceptance publication date 7 June 2012

International Classifications

E21B 43/10 (2006.01) Obtaining fluids from wells

E21B 7/20 (2006.01) Special methods or apparatus for drilling - Driving or forcing casings or pipes into boreholes, e.g. sinking

E21B 21/12 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

F16L 55/165 (2006.01) Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Event Publications

3 June 2010 PCT application entered the National Phase

  PCT publication WO2009/074632 Priority application(s): WO2009/074632

7 June 2012 Application Accepted

  Published as AU-B-2008334603

4 October 2012 Standard Patent Sealed

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