EP 2929127 A1 20151014 - RADIAL CLAMPING/SEALING SYSTEM AND DRILLING SYSTEM PROVIDED THEREWITH FOR (SEMI)-CONTINUOUS DRILLING A BOREHOLE, DRILLING RIG COMPRISING SUCH SYSTEM, AND METHOD THERE FOR
Title (en)
RADIAL CLAMPING/SEALING SYSTEM AND DRILLING SYSTEM PROVIDED THEREWITH FOR (SEMI)-CONTINUOUS DRILLING A BOREHOLE, DRILLING RIG COMPRISING SUCH SYSTEM, AND METHOD THERE FOR
Title (de)
RADIALES KLEMM-/DICHTUNGSSYSTEM UND BOHRSYSTEM DAMIT ZUR (HALB)KONTINUIERLICHEN BOHRUNG EINES BOHRLOCHS, BOHRGESTELL MIT SOLCH EINEM SYSTEM UND VERFAHREN DAFÜR
Title (fr)
SYSTÈME DE SERRAGE/SCELLEMENT RADIAL ET SYSTÈME DE FORAGE LE COMPORTANT POUR LE FORAGE (SEMI)-CONTINU D'UN TROU DE FORAGE, PLATEFORME DE FORAGE COMPRENANT UN TEL SYSTÈME, ET PROCÉDÉ POUR CEUX-CI
Publication
Application
Priority
- NL 2009935 A 20121205
- NL 2013050876 W 20131205
Abstract (en)
[origin: WO2014088417A1] Invention relates to a system and associated method for continuous and/or semi-continuous drilling a borehole, comprising: - a first stationary housing; - a rotatable housing comprising a longitudinal opening for receiving a drill string; and - a radial clamping system configured for holding and clamping the box end of the drill string in substantially radial direction with respect to the rotatable housing; - a first direct sealing system in use arranged between drill pipe and the rotatable housing; - a second indirect sealing system in use arranged between the rotatable housing and the stationary housing; - a mechanical and/or hydraulic transmission configured for radial activation of the radial clamping system; and - a first drive configured for rotating the rotatable housing with the drill string.
IPC 8 full level
E21B 33/08 (2006.01); E21B 19/06 (2006.01); E21B 19/10 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP US)
E21B 3/022 (2020.05 - EP US); E21B 19/06 (2013.01 - EP US); E21B 19/10 (2013.01 - EP US); E21B 19/16 (2013.01 - EP US); E21B 19/24 (2013.01 - US); E21B 33/085 (2013.01 - EP US)
Citation (search report)
See references of WO 2014088417A1
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 2014088417 A1 20140612; AU 2013356776 A1 20150702; AU 2013356776 B2 20170803; CA 2893865 A1 20140612; CN 104995370 A 20151021; CN 104995370 B 20181221; EP 2929127 A1 20151014; NL 2009935 C2 20140610; US 2015300103 A1 20151022
DOCDB simple family (application)
NL 2013050876 W 20131205; AU 2013356776 A 20131205; CA 2893865 A 20131205; CN 201380072203 A 20131205; EP 13808263 A 20131205; NL 2009935 A 20121205; US 201314649797 A 20131205