Owner Schlumberger Technology B.V.

Inventors Goode, Peter A; Zimmerman, Thomas H; Christie, Alan R; Kishino, Ashley C; Kerr, John A; Rytlewski, Gary L

Agent Griffith Hack

Pub. Number AU-B-2004218672

Parent 777160

Filing date 7 October 2004

Wipo publication date 4 November 2004

Acceptance publication date 1 November 2007

E21B 19/14 (2006.01) Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

B63C 11/42 (2006.01) Equipment for dwelling or working under water

B63G 8/00 (2006.01) Underwater vessels, e.g. submarines

E21B 23/08 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 33/076 (2006.01) Sealing or packing boreholes or wells

E21B 41/00 (2006.01) Equipment or details not covered by groups

E21B 41/04 (2006.01) Equipment or details not covered by groups

E21B 47/00 (2006.01) Survey of boreholes or wells

E21B 47/06 (2006.01) Survey of boreholes or wells - Measuring temperature or pressure

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