A Novel Foamer Composition and Methods for Making and Using Same

Details for Australian Patent Application No. 2004242436 (hide)

Owner Clearwater International, L.L.C.

Inventors Shewchuk, Garth; Rodriguez, Colby P.; Gatlin, Larry W.

Agent Fraser Old & Sohn

Pub. Number AU-B-2004242436

Priority 10/745,290 23.12.03 US

Filing date 23 December 2004

Wipo publication date 7 July 2005

Acceptance publication date 1 April 2010

International Classifications

B01F 17/18 (2006.01) Use of substances as emulsifying, wetting, dispersing, or foam-producing agents - Quaternary ammonium compounds

B01F 17/00 (2006.01) Use of substances as emulsifying, wetting, dispersing, or foam-producing agents

B01F 17/02 (2006.01) Use of substances as emulsifying, wetting, dispersing, or foam-producing agents - Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols

C09K 8/38 (2006.01) Compositions for drilling of boreholes or wells

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

C11D 1/94 (2006.01) Surface-active non-soap detergents

C11D 17/00 (2006.01) Detergent materials or soaps characterised by their shape or physical properties

E21B 21/14 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 43/25 (2006.01) Obtaining fluids from wells - Methods for stimulating production

Event Publications

13 January 2005 Complete Application Filed

  Priority application(s): 10/745,290 23.12.03 US

7 July 2005 Application Open to Public Inspection

  Published as AU-B-2004242436

15 May 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

29 May 2008 Section 223 Application Allowed

  Clearwater International, L.L.C. The time in which to request examination has been extended to 09 May 2008. Address for service in Australia - Fraser Old & Sohn Level 10 275 Alfred Street North Sydney NSW 2060

1 April 2010 Application Accepted

  Published as AU-B-2004242436

29 July 2010 Standard Patent Sealed

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