EP 3519663 A1 20190807 - DRILLING APPARATUS USING A SELF-ADJUSTING DEFLECTION DEVICE AND DIRECTIONAL SENSORS FOR DRILLING DIRECTIONAL WELLS
Title (en)
DRILLING APPARATUS USING A SELF-ADJUSTING DEFLECTION DEVICE AND DIRECTIONAL SENSORS FOR DRILLING DIRECTIONAL WELLS
Title (de)
BOHRVORRICHTUNG MIT EINER SELBSTEINSTELLENDEN ABLENKVORRICHTUNG UND RICHTUNGSSENSOREN ZUM BOHREN VON RICHTUNGSBOHRLÖCHERN
Title (fr)
APPAREIL DE FORAGE UTILISANT UN DISPOSITIF DE DÉVIATION À RÉGLAGE AUTOMATIQUE ET CAPTEURS DIRECTIONNELS DE FORAGE DE PUITS DIRECTIONNELS
Publication
Application
Priority
- US 201615274892 A 20160923
- US 2017052655 W 20170921
Abstract (en)
[origin: WO2018057698A1] An apparatus for drilling a directional wellbore is disclosed that in one non-limiting embodiment includes a drive for rotating a drill bit, a deflection device that enables a lower section a drilling assembly to tilt within a selected plane when the drilling assembly is substantially rotationally stationary to allow drilling of a curved section of the wellbore when the drill bit is rotated by the drive and wherein the tilt is reduced when the drilling assembly is rotated to allow drilling of a straighter section of the wellbore, and a sensor that provides measurements relating a direction of the drilling assembly for drilling the wellbore along a desired direction.
IPC 8 full level
E21B 4/02 (2006.01); E21B 7/06 (2006.01); E21B 17/20 (2006.01); E21B 47/024 (2006.01)
CPC (source: CN EP RU US)
E21B 7/06 (2013.01 - RU US); E21B 7/067 (2013.01 - CN EP RU US); E21B 7/068 (2013.01 - EP RU); E21B 17/20 (2013.01 - US); E21B 41/00 (2013.01 - US); E21B 44/00 (2013.01 - US); E21B 44/04 (2013.01 - US); E21B 47/00 (2013.01 - US); E21B 47/024 (2013.01 - EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018057698 A1 20180329; BR 112019005562 A2 20190604; BR 112019005562 B1 20230307; CN 109844256 A 20190604; CN 109844256 B 20220218; EP 3519663 A1 20190807; EP 3519663 A4 20200701; EP 3519663 B1 20230913
DOCDB simple family (application)
US 2017052655 W 20170921; BR 112019005562 A 20170921; CN 201780058364 A 20170921; EP 17853862 A 20170921