Dispersant coated weighting agents

Details for Australian Patent Application No. 2007294625 (hide)

Owner M-I LLC

Inventors Massam, Jarrod

Agent Pizzeys

Pub. Number AU-B-2007294625

PCT Pub. Number WO2008/033591

Priority 60/825,156 11.09.06 US; 11/741,199 27.04.07 US

Filing date 15 June 2007

Wipo publication date 20 March 2008

Acceptance publication date 7 April 2011

International Classifications

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

C09K 3/00 (2006.01) Materials not provided for elsewhere

C09K 8/02 (2006.01) Compositions for drilling of boreholes or wells - Well-drilling compositions

C22B 43/00 (2006.01) Obtaining mercury

Event Publications

12 March 2009 PCT application entered the National Phase

  PCT publication WO2008/033591 Priority application(s): WO2008/033591

7 April 2011 Application Accepted

  Published as AU-B-2007294625

4 August 2011 Standard Patent Sealed

Legal

The information provided by the Site not in the nature of legal or other professional advice. The information provided by the Site is derived from third parties and may contain errors. You must make your own enquiries and seek independent advice from the relevant industry professionals before acting or relying on any information contained herein. Check the above data against the Australian Patent Office AUSPAT database.

Next and Previous Patents/Applications

2007294626-Increased rate of penetration from low rheology wellbore fluids

2007294624-A method and apparatus to provide authentication and privacy with low complexity devices