Fill up and circulation tool and mudsaver valve

Details for Australian Patent Application No. 2009242492 (hide)

Owner Weatherford/Lamb, Inc.

Inventors Olstad, Delaney Michael; Liess, Martin; Hooker, John D.; Morgan, Russell Lee; Hollingsworth, Jim; Thompson, Russell W.; Boutwell, Doyle Frederic; Hayes, Michael

Agent Spruson & Ferguson

Pub. Number AU-A-2009242492

PCT Pub. Number WO2009/135220

Priority 61/050,121 02.05.08 US; 61/126,301 02.05.08 US; 61/126,223 02.05.08 US

Filing date 4 May 2009

Wipo publication date 5 November 2009

International Classifications

E21B 21/08 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Event Publications

25 November 2010 PCT application entered the National Phase

  PCT publication WO2009/135220 Priority application(s): WO2009/135220

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