EP 2370664 A1 20111005 - BELLOWS VALVE
Title (en)
BELLOWS VALVE
Title (de)
BALGVENTIL
Title (fr)
SOUPAPE A SOUFFLET
Publication
Application
Priority
- NO 2009000406 W 20091125
- NO 20084969 A 20081126
Abstract (en)
[origin: WO2010062187A1] The present invention relates to a device which can be used in an offshore or onshore oil and/or gas well for the purpose of increasing the production of the well. The device comprises an outer structure in which a first and a second pressure-actuated bellows device are arranged, the first and second pressure-actuated bellows device, via a support means, being in fluid communication with each other. The support means is fixedly mounted internally in the outer structure, the support means thereby delimiting an open and a closed space for respectively the first and the second pressure-actuated bellows device, wherein the closed space is filled with a fluid under pressure, whilst the open space is in fluid communication with a surrounding fluid.
IPC 8 full level
E21B 34/08 (2006.01); E21B 43/12 (2006.01)
CPC (source: EP US)
E21B 34/085 (2013.01 - EP US); E21B 43/123 (2013.01 - EP US)
Citation (search report)
See references of WO 2010062187A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010062187 A1 20100603; BR PI0921585 A2 20160412; CA 2742884 A1 20100603; EP 2370664 A1 20111005; MX 2011005498 A 20110616; NO 20084969 L 20100527; US 2012125621 A1 20120524
DOCDB simple family (application)
NO 2009000406 W 20091125; BR PI0921585 A 20091125; CA 2742884 A 20091125; EP 09768559 A 20091125; MX 2011005498 A 20091125; NO 20084969 A 20081126; US 200913130053 A 20091125