EP 0447204 A2 19910918 - Inflatable packing element for use in subterranean wells.
Title (en)
Inflatable packing element for use in subterranean wells.
Title (de)
Aufblasbares Dichtelement für unterirdische Bohrlöcher.
Title (fr)
Elément d'étanchéité pour puits souterrains.
Publication
Application
Priority
US 49284190 A 19900313
Abstract (en)
An inflatable packing element (10) for an inflatable packer or bridge plug utilized in subterranean wells comprises a tubular elastomeric sleeve (30) which is surrounded by a plurality of circumferentially overlapping flexible metal ribs (12). The opposite ends of the ribs (12) are respectively welded to an external surface provided on a force transmitting sleeve (14). The sleeve (14) is provided with a shoulder (14a) having an abutting relationship with an internally projecting shoulder (20a) provided on the tubular mounting structure (20) for the inflatable element (10). <IMAGE>
IPC 1-7
IPC 8 full level
E21B 33/127 (2006.01)
CPC (source: EP)
E21B 33/1277 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0447204 A2 19910918; EP 0447204 A3 19920304; EP 0447204 B1 19970709; AT E155203 T1 19970715; CA 2038105 A1 19910914; CA 2038105 C 20020108; DE 69126722 D1 19970814; NO 303698 B1 19980817; NO 910983 D0 19910312; NO 910983 L 19910916
DOCDB simple family (application)
EP 91302105 A 19910313; AT 91302105 T 19910313; CA 2038105 A 19910312; DE 69126722 T 19910313; NO 910983 A 19910312