Methods and systems of treating a wellbore

Details for Australian Patent Application No. 2009223855 (hide)

Owner M-I Drilling Fluids UK Limited

Inventors Popplestone, Andy; Ballard, David Antony

Agent Pizzeys

Pub. Number AU-B-2009223855

PCT Pub. Number WO2009/112948

Priority 61/036,018 12.03.08 US

Filing date 6 March 2009

Wipo publication date 17 September 2009

Acceptance publication date 3 May 2012

International Classifications

E21B 37/00 (2006.01) Methods or apparatus for cleaning boreholes or wells

E21B 21/00 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Event Publications

30 September 2010 PCT application entered the National Phase

  PCT publication WO2009/112948 Priority application(s): WO2009/112948

3 May 2012 Application Accepted

  Published as AU-B-2009223855

30 August 2012 Standard Patent Sealed

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