EP 2732120 A2 20140521 - AN IMPROVED DIRECTIONAL DRILLING TOOL
Title (en)
AN IMPROVED DIRECTIONAL DRILLING TOOL
Title (de)
VERBESSERTES RICHTBOHRWERKZEUG
Title (fr)
OUTIL DE FORAGE DIRECTIONNEL AMÉLIORÉ
Publication
Application
Priority
- GB 201112104 A 20110714
- EG 2012000026 W 20120715
Abstract (en)
[origin: WO2013007269A2] A directional drilling tool is provided, which comprises a first end (2) attachable to a drill string, and a second end (4) attachable to a drill bit. A swivel section (6) is provided intermediate the first and second ends (2,4) and has a first swivel member (18) non-rotatably attached to the first end (2) and a second swivel member (20) rotatably coupled to the first swivel member (18) and rotatable relative thereto about a first axis of rotation which is co-axial with a longitudinal axis (LI) of the tool. A first actuator is adapted to selectively rotate the second swivel member (20) about the first axis of rotation. An adjustable bend section (12) has a first bend member (118) non-rotatably attached to the second swivel member (20) and a second bend member (120) rotatably coupled to the first bend member (118), where the first bend member (118) is co-axial with the longitudinal axis (LI), and the second bend member (120) is rotatable relative to the first bend member (118) about a second axis of rotation (R) which is at a non-zero angle relative to the longitudinal axis (LI). A second actuator is adapted to selectively rotate the second bend member (120) about the second axis of rotation (R). A directional drilling system incorporating the tool, a control process for the tool, and a motor drive for rotating a second body relative to a first body are also provided.
IPC 8 full level
E21B 7/06 (2006.01)
CPC (source: EP US)
E21B 7/06 (2013.01 - EP US); E21B 7/067 (2013.01 - EP US); E21B 17/05 (2013.01 - EP US); E21B 44/00 (2013.01 - US); Y10T 74/1836 (2015.01 - EP US)
Citation (search report)
See references of WO 2013007269A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013007269 A2 20130117; WO 2013007269 A3 20131107; CA 2841662 A1 20130117; EP 2732120 A2 20140521; GB 201112104 D0 20110831; US 2014158427 A1 20140612
DOCDB simple family (application)
EG 2012000026 W 20120715; CA 2841662 A 20120715; EP 12740887 A 20120715; GB 201112104 A 20110714; US 201214232069 A 20120715