Continuous flow drilling systems and methods

Details for Australian Patent Application No. 2008282452 (hide)

Owner Weatherford/Lamb, Inc.

Inventors Bansal, R. K.; Steiner, Adrian; Lynch, Michael; Harrall, Simon J.; Bailey, Thomas F.; Iblings, David

Agent Spruson & Ferguson

Pub. Number AU-B-2008282452

PCT Pub. Number WO2009/018173

Priority 60/952,539 27.07.07 US; 60/973,434 18.09.07 US

Filing date 25 July 2008

Wipo publication date 5 February 2009

Acceptance publication date 8 March 2012

International Classifications

E21B 19/16 (2006.01) Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

E21B 21/10 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

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

Event Publications

25 February 2010 PCT application entered the National Phase

  PCT publication WO2009/018173 Priority application(s): WO2009/018173

8 March 2012 Application Accepted

  Published as AU-B-2008282452

5 July 2012 Standard Patent Sealed

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