EP 2898172 B1 20171115 - SYSTEM FOR OIL AND GAS EXPLORATION AND PRODUCTION DRILLING
Title (en)
SYSTEM FOR OIL AND GAS EXPLORATION AND PRODUCTION DRILLING
Title (de)
SYSTEM ZUR ÖL- UND GASAUFSCHLIESSUNG UND PRODUKTIONSBOHRUNG
Title (fr)
SYSTÈME POUR FORAGE D'EXPLORATION ET DE PRODUCTION DE PÉTROLE ET DE GAZ
Publication
Application
Priority
- NO 20121063 A 20120918
- NO 20131157 A 20130830
- NO 2013050157 W 20130916
Abstract (en)
[origin: WO2014046548A1] A system for exploration and production drilling for oil and gas or other fluids that are to be recovered from bedrock, including a non-rotatable drill string (3) formed from several connectable drill-string sections (31, 31a, 31b), a bottom-hole assembly (37) provided with a rotatable drill bit (37a) connected to a drill-bit drive (37b), the drill string (3) being provided with first and second line grooves (34a, 34b) arranged to receive, respectively, a fluid line (36a) and a power and signal line (36b), the drill-string sections (31, 31a, 31b) being provided with an asymmetric drill-string connection (32) at their respective end portions.
IPC 8 full level
E21B 17/00 (2006.01); E21B 17/046 (2006.01); E21B 33/068 (2006.01)
CPC (source: EP NO US)
E21B 17/00 (2013.01 - EP); E21B 17/02 (2013.01 - NO); E21B 17/046 (2013.01 - EP NO US); E21B 33/068 (2013.01 - EP)
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 2014046548 A1 20140327; EP 2898172 A1 20150729; EP 2898172 A4 20160608; EP 2898172 B1 20171115; NO 20131157 A1 20140319; NO 342845 B1 20180820
DOCDB simple family (application)
NO 2013050157 W 20130916; EP 13839937 A 20130916; NO 20131157 A 20130830