Wellbore fluid comprising a base fluid and a particulate bridging agent

Details for Australian Patent Application No. 2007211354 (hide)

Owner BP Exploration Operating Company Limited

Inventors Duncum, Simon Neil; Sawdon, Christopher Alan

Agent Griffith Hack

Pub. Number AU-B-2007211354

PCT Pub. Number WO2007/088322

Priority 0601961.6 31.01.06 GB

Filing date 10 January 2007

Wipo publication date 9 August 2007

Acceptance publication date 31 May 2012

International Classifications

C09K 8/03 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/16 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/26 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/32 (2006.01) Compositions for drilling of boreholes or wells

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

C09K 8/504 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/52 (2006.01) Compositions for drilling of boreholes or wells - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning

C09K 8/66 (2006.01) Compositions for drilling of boreholes or wells

Event Publications

21 August 2008 PCT application entered the National Phase

  PCT publication WO2007/088322 Priority application(s): WO2007/088322

31 May 2012 Application Accepted

  Published as AU-B-2007211354

27 September 2012 Standard Patent Sealed

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