EP 3375975 B1 20200729 - VARIABLE FLOW RESISTANCE FOR USE WITH A SUBTERRANEAN WELL
Title (en)
VARIABLE FLOW RESISTANCE FOR USE WITH A SUBTERRANEAN WELL
Title (de)
VARIABLER STRÖMUNGSWIDERSTAND ZUR VERWENDUNG BEI EINER UNTERIRDISCHEN BOHRUNG
Title (fr)
SYSTÈME DE RÉSISTANCE VARIABLE À L'ÉCOULEMENT À METTRE EN OEUVRE DANS UN PUITS SOUTERRAIN
Publication
Application
Priority
- EP 18169405 A 20111107
- EP 11875323 A 20111107
- US 2011059530 W 20111107
Abstract (en)
[origin: WO2013070181A1] A variable flow resistance system for use with a subterranean well can include a structure which displaces in response to a flow of a fluid composition, whereby a resistance to the flow of the fluid composition changes in response to a change in a ratio of desired to undesired fluid in the fluid composition. Another system can include a structure which rotates in response to flow of a fluid composition, and a fluid switch which deflects the fluid composition relative to at least two flow paths. A method of variably resisting flow in a subterranean well can include a structure displacing in response to a flow of a fluid composition, and a resistance to the flow of the fluid composition changing in response to a ratio of desired to undesired fluid in the fluid composition changing. Swellable materials and airfoils may be used in variable flow resistance systems.
IPC 8 full level
E21B 34/06 (2006.01); E21B 43/12 (2006.01)
CPC (source: EP)
E21B 43/12 (2013.01); E21B 43/32 (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)
WO 2013070181 A1 20130516; AU 2011380934 A1 20140327; AU 2016203869 A1 20160630; AU 2016203869 B2 20180531; AU 2018202886 A1 20180517; AU 2018202886 B2 20191212; AU 2018222999 A1 20180920; AU 2018222999 B2 20200116; AU 2018223000 A1 20180920; AU 2018223000 B2 20200319; BR 112014010881 A2 20170418; BR 112014010881 B1 20210209; BR 112014010881 B8 20210330; CA 2851559 A1 20130516; CA 2851559 C 20170620; CA 2966002 A1 20130516; CA 2966002 C 20180911; CA 3012944 A1 20130516; CA 3012944 C 20200721; CN 103917741 A 20140709; CN 103917741 B 20171215; CO 6940395 A2 20140509; EP 2776660 A1 20140917; EP 2776660 A4 20160106; EP 2776660 B1 20180502; EP 3375975 A1 20180919; EP 3375975 B1 20200729; IN 3064DEN2014 A 20150515; MX 2014005512 A 20140605; MX 347694 B 20170509; MX 360719 B 20181114; MY 167754 A 20180924; NO 2776660 T3 20180929; RU 2014121076 A 20151220; RU 2594409 C2 20160820; SG 11201400693W A 20140428
DOCDB simple family (application)
US 2011059530 W 20111107; AU 2011380934 A 20111107; AU 2016203869 A 20160609; AU 2018202886 A 20180426; AU 2018222999 A 20180830; AU 2018223000 A 20180830; BR 112014010881 A 20111107; CA 2851559 A 20111107; CA 2966002 A 20111107; CA 3012944 A 20111107; CN 201180074695 A 20111107; CO 14080606 A 20140414; EP 11875323 A 20111107; EP 18169405 A 20111107; IN 3064DEN2014 A 20140417; MX 2014005512 A 20111107; MX 2017006003 A 20111107; MY PI2014000668 A 20111107; NO 11875323 A 20111107; RU 2014121076 A 20111107; SG 11201400693W A 20111107