Method and apparatus for managing variable density drilling mud

Details for Australian Patent Application No. 2007222041 (hide)

Owner ExxonMobil Upstream Research Company

Inventors Pokutylowicz, Norman; Carstensen, Barbara; Gupta, Ramesh; Polizzotti, Richard; Peiffer, Dennis G.; Spiecker, P. Matthew; Entchev, Pavlin B.

Agent Watermark

Pub. Number AU-B-2007222041

PCT Pub. Number WO2007/102971

Priority 60/779,679 06.03.06 US

Filing date 13 February 2007

Wipo publication date 13 September 2007

Acceptance publication date 28 July 2011

International Classifications

E21B 21/01 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 21/06 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

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

Event Publications

11 September 2008 PCT application entered the National Phase

  PCT publication WO2007/102971 Priority application(s): WO2007/102971

28 July 2011 Application Accepted

  Published as AU-B-2007222041

24 November 2011 Standard Patent Sealed

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