Drilling with casing

Details for Australian Patent Application No. 2003297791 (hide)

Owner Halliburton Energy Services, Inc.

Inventors Rao, Vikram M.; Chen, Chen-Kang D.

Agent Spruson & Ferguson

Pub. Number AU-B-2003297791

PCT Number PCT/US2003/0391

PCT Pub. Number WO2004/061261

Priority 10/320,164 16.12.02 US

Filing date 10 December 2003

Wipo publication date 29 July 2004

Acceptance publication date 29 March 2007

International Classifications

E21B 7/20 (2006.01) Special methods or apparatus for drilling - Driving or forcing casings or pipes into boreholes, e.g. sinking

E21B 7/06 (2006.01) Special methods or apparatus for drilling

E21B 10/26 (2006.01) Drilling tools - Drill bits with leading portion, i.e. drill bits with a pilot cutter

E21B 17/08 (2006.01) Drilling rods or pipes

E21B 17/10 (2006.01) Drilling rods or pipes

Event Publications

6 May 2004 Complete Application Filed

  Priority application(s): 10/320,164 16.12.02 US

2 September 2004 Application Open to Public Inspection

  Published as AU-B-2003297791

29 March 2007 Application Accepted

  Published as AU-B-2003297791

2 August 2007 Standard Patent Sealed

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