Nano-sized particles for stabilizing viscoelastic surfactant fluids

Details for Australian Patent Application No. 2007299784 (hide)

Owner Baker Hughes Incorporated

Inventors Willingham, John R.; Crew, James B.; Huang, Tianping; Treadway Jr., James H.

Agent Freehills

Pub. Number AU-A-2007299784

PCT Pub. Number WO2008/036812

Priority 60/845,916 20.09.06 US

Filing date 20 September 2007

Wipo publication date 27 March 2008

International Classifications

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

C09K 8/68 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/70 (2006.01) Compositions for drilling of boreholes or wells

C09K 8/74 (2006.01) Compositions for drilling of boreholes or wells

E21B 43/04 (2006.01) Obtaining fluids from wells

Event Publications

23 April 2009 Assignment before Grant

  Willingham, John; Huang, Tianping; Baker Hughes Incorporated; Treadway, James; Crews, James The application has been assigned to Baker Hughes Incorporated

30 April 2009 Amendment Made

  The nature of the amendment is: Amend the names of the co-inventors to read Willingham, John R.; Crew, James B.; Huang, Tianping and Treadway Jr., James H.

30 April 2009 PCT application entered the National Phase

  PCT publication WO2008/036812 Priority application(s): WO2008/036812

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