EP 2630332 B1 20180321 - DEVICE TO OPERATE DOWNHOLE EQUIPMENT
Title (en)
DEVICE TO OPERATE DOWNHOLE EQUIPMENT
Title (de)
VORRICHTUNG ZUM BETREIBEN EINER BOHRLOCHAUSRÜSTUNG
Title (fr)
DISPOSITIF D'ACTIONNEMENT POUR ÉQUIPEMENT DE FOND
Publication
Application
Priority
- NO 20101487 A 20101021
- NO 2011000301 W 20111021
Abstract (en)
[origin: WO2012060713A1] There is provided A device for conveying a pressure pulse for activating fluid- activated equipment in a pipe (12/27), wherein the device is characterized in that the pipe (27) comprises a flexible membrane (24) which isolates the fluid F1 in the fluid conveying pipe from a fluid F2 in another canal which is in fluid communication with the equipment, wherein the membrane, on account of its elasticity, conveys pressure changes (pressure pulses) in the fluid P1 in the pipe (12) to the fluid P2 in the other canal (30). Beneficially, the other canal (30) is fluidically coupled to a chamber (26) wherein the membrane (24) is located, and the membrane (a bellows) (24) is threaded to an exterior of the pipe section (27) and arranged in a chamber-forming (26) seat of the section of pipe (27), wherein the wall of the section of pipe includes a number of penetrating bored holes for providing fluid connection from the fluid F1 having a pressure P1 in the pipe (27) radially out towards the membrane lying against the outer wall. The membrane (24) is beneficially a sleeve-formed bellows, and the chamber forms a ring-formed arrangement surrounding the section of pipe, and the wall of the pipe comprises a number of penetrating bored holes completely around the pipe.
IPC 8 full level
E21B 47/18 (2012.01); E21B 23/04 (2006.01); E21B 47/12 (2012.01)
CPC (source: EP NO US)
E21B 23/0412 (2020.05 - EP); E21B 34/063 (2013.01 - US); E21B 47/12 (2013.01 - NO); E21B 47/18 (2013.01 - EP NO 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
DOCDB simple family (publication)
WO 2012060713 A1 20120510; AU 2011324132 A1 20130314; AU 2011324132 B2 20151217; BR 112013009765 A2 20160719; BR 112013009765 B1 20201110; CA 2812074 A1 20120510; CA 2812074 C 20181009; DK 2630332 T3 20180625; EP 2630332 A1 20130828; EP 2630332 A4 20170329; EP 2630332 B1 20180321; NO 20101487 A1 20120423; NO 337489 B1 20160425; RU 2013117976 A 20141127; RU 2558562 C2 20150810; US 2013228338 A1 20130905
DOCDB simple family (application)
NO 2011000301 W 20111021; AU 2011324132 A 20111021; BR 112013009765 A 20111021; CA 2812074 A 20111021; DK 11838291 T 20111021; EP 11838291 A 20111021; NO 20101487 A 20101021; RU 2013117976 A 20111021; US 201113879241 A 20111021