Directional drilling control apparatus and methods | Patent Publication Number 20110024187

US 20110024187 A1
Patent NumberUS 08360171 B2
Application Number12905829
Filled DateOct 15, 2010
Priority DateSep 21, 2007
Publication DateFeb 3, 2011
Original AssigneeCanrig Drilling Technology Ltd.
Current AssigneeNabors Drilling Technologies Usa Inc.
Inventor/ApplicantsBrian Ellis
John Thomas Scarborough
Chris Papouras
Scott Boone
Beat Küttel
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