Method of drilling a borehole into an earth formation

Details for Australian Patent Application No. 2002358512 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Eigner, Manfred, Rudolf, Paul; Schouten, Jeanette, Caroline; Neustadt, Beatrice

Agent Spruson & Ferguson

Pub. Number AU-B-2002358512

PCT Number PCT/EP02/12894

PCT Pub. Number WO2003/044317

Priority 60/333,099 19.11.01 US

Filing date 18 November 2002

Wipo publication date 10 June 2003

Acceptance publication date 9 August 2007

International Classifications

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

C09K 8/03 (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

Event Publications

3 April 2003 Complete Application Filed

  Priority application(s): 60/333,099 19.11.01 US

21 August 2003 Application Open to Public Inspection

  Published as AU-B-2002358512

9 August 2007 Application Accepted

  Published as AU-B-2002358512

6 December 2007 Standard Patent Sealed

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