Owner Halliburton Energy Services, Inc.

Inventors Walker, Colin; Brothers, Lance Everett; Fitsgerald, Russell M; Palmer, Anthony Vann; Chen, Chen-Kang David; Murali, Beegamudre N; Reddy, Baireddy R; Wilson, John M; Berryhill, Denise; Boulton, Roger; Terry, James B; Culotta, Anne M; Eoff, Larry S; Zamora, Frank; Gleitman, Dan; Rao, Vikram M; Weaver, Jimmie D; Gaynor, Thomas M; Wylie, Glenda; Hardin, John

Agent Pizzeys

Pub. Number AU-B-2002361632

PCT Number PCT/US02/36614

PCT Pub. Number WO2003/042489

Priority 60/414,517 27.09.02 US; 10/293,013 13.11.02 US; 60/335,132 14.11.01 US

Filing date 14 November 2002

Wipo publication date 26 May 2003

Acceptance publication date 18 December 2008

E21B 7/00 (2006.01) Special methods or apparatus for drilling

E21B 7/04 (2006.01) Special methods or apparatus for drilling - Directional drilling

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

E21B 7/28 (2006.01) Special methods or apparatus for drilling

E21B 17/00 (2006.01) Drilling rods or pipes

E21B 29/00 (2006.01) Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows

E21B 29/02 (2006.01) Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows

E21B 33/14 (2006.01) Sealing or packing boreholes or wells

E21B 43/10 (2006.01) Obtaining fluids from wells

E21B 47/02 (2006.01) Survey of boreholes or wells - Determining slope or direction

E21B 47/12 (2006.01) Survey of boreholes or wells - Means for transmitting measuring-signals from the well to the surface, e.g. for logging while drilling