EP 3228810 B1 20190220 - PROTECTION SLEEVE FOR A DRILLING SYSTEM
Title (en)
PROTECTION SLEEVE FOR A DRILLING SYSTEM
Title (de)
SCHUTZHÜLSE FÜR EINE BOHRANLAGE
Title (fr)
MANCHON DE PROTECTION POUR UNE INSTALLATION DE FORAGE
Publication
Application
Priority
EP 16164118 A 20160406
Abstract (en)
[origin: EP3228810A1] The invention relates to a protection sleeve (5) for covering the outer surface of a tubular member (502) of a drilling system between a first and a second end of the tubular member (502), comprising a preferably tubular flexible sleeve (504) with two ends, wherein the sleeve (504) is preferably leakage-proof attached or attachable to an end of the tubular member (502), and an end of the sleeve (504) is attached to an entrance arrangement (505) which is preferably leakage-proof attached or attachable to the outer surface of the tubular member (502) in such a way, that a closed annulus chamber (508) between the outer surface of the tubular member (502) and the sleeve (504) is created which extends from an end of the tubular member (502) to the entrance arrangement (505), wherein means are provided to pressurize the annulus chamber (508) in such a way that the sleeve (504) expands radially. The invention further relates to the use of such a protection sleeve in a drilling system, and a drilling system with such a protection sleeve.
IPC 8 full level
E21B 17/10 (2006.01); E21B 33/12 (2006.01)
CPC (source: EP)
E21B 17/10 (2013.01); E21B 33/1208 (2013.01)
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)
EP 3228810 A1 20171011; EP 3228810 B1 20190220; WO 2017174485 A1 20171012
DOCDB simple family (application)
EP 16164118 A 20160406; EP 2017057816 W 20170403