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Title:
METHOD AND APPARATUS FOR DETERMINING DRILLING PATHS TO DIRECTIONAL TARGETS
Document Type and Number:
WIPO Patent Application WO2002099241
Kind Code:
B1
Abstract:
A method and apparatus for recomputing an optimum path (C) between a present location of a drill bit (D) and a direction or horizontal target (T) uses linear approximations of circular arc paths. The technique does not attempt to return to a preplanned drilling profile when there actual drilling results deviate from the preplanned profile. By recomputing an optimum path (C), the borehole to the target (T) has a reduced tortuosity.

Inventors:
SCHUH FRANK J (US)
Application Number:
PCT/US2002/003386
Publication Date:
May 21, 2004
Filing Date:
February 20, 2002
Export Citation:
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Assignee:
VALIDUS INTERNAT COMPANY LLC (US)
SCHUH FRANK J (US)
International Classes:
E21B7/04; (IPC1-7): E21B7/04
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