E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/00 (2006.01) E21B 7/06 (2006.01) E21B 29/06 (2006.01)
Patent
CA 2142994
A method for forming a window (45) in a subsurface well conduit (I) using a coiled tubing unit (46) together with standard rotary rig tools adopted for use with a coiled tubing unit, and a whipstock (62) with no wear projection on the guide surface (68) thereof, and controlling the angular relationship between the tools and the whipstock while forming the window.
Blount Curtis G.
Hailey Charles D.
Hightower Charles M.
Atlantic Richfield Company
Hailey Charles D.
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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