Polymeric microspheres as degradable fluid loss additives in oilfield applications

Details for Australian Patent Application No. 2009215288 (hide)

Owner SCHLUMBERGER TECHNOLOGY B.V.

Inventors Druchon, Bruno; Kubala, Gregory; Tustin, Gary John; Vatry, Christelle; Sullivan, Philip F.; Dessinges, Marie Noelle

Agent Griffith Hack

Pub. Number AU-A-2009215288

PCT Pub. Number WO2009/104108

Priority 12/033,630 19.02.08 US

Filing date 9 February 2009

Wipo publication date 27 August 2009

International Classifications

C09K 8/42 (2006.01) Compositions for drilling of boreholes or wells - Compositions for cementing, e.g. for cementing casings into boreholes

C09K 8/516 (2006.01) Compositions for drilling of boreholes or wells

Event Publications

26 August 2010 PCT application entered the National Phase

  PCT publication WO2009/104108 Priority application(s): WO2009/104108

25 November 2010 Amendment Made

  The nature of the amendment is: Amend co-inventor name from Moss, Jonathon to Moss, Jonathan

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