Water swellable polymers as lost circulation control agents material

Details for Australian Patent Application No. 2006268023 (hide)

Owner Halliburton Energy Services, Inc.

Inventors Davidson, Eric A.; Fang, Cindy Ching; Thaemiltz, Carl J.

Agent Callinan

Pub. Number AU-B-2006268023

PCT Pub. Number WO2007/007118

Priority 11/180,767 13.07.05 US

Filing date 11 July 2006

Wipo publication date 18 January 2007

Acceptance publication date 1 December 2011

International Classifications

C09K 8/487 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/502 (2006.01) Compositions for drilling of boreholes or wells

Event Publications

28 February 2008 PCT application entered the National Phase

  PCT publication WO2007/007118 Priority application(s): WO2007/007118

1 December 2011 Application Accepted

  Published as AU-B-2006268023

29 March 2012 Standard Patent Sealed

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