EP 1719873 A1 20061108 - Expandable sleeve
Title (en)
Expandable sleeve
Title (de)
Aufweitbare Hülse
Title (fr)
Manchon extensible
Publication
Application
Priority
EP 05290982 A 20050504
Abstract (en)
An expandable sleeve for use in a well, comprises a tubular structure including an external sealing layer (10) comprising a compliant material; an intermediate expandable tubular body (12) made from a plastically deformable material; and an internal spring structure (14) such as a helically wound spring; wherein the external sealing layer is disposed on the outer surface of the tubular body, and the internal spring structure is disposed inside the tubular body and acts so as to exert a radial force on the body when in an expanded state. Such a sleeve can be used to seal off perforations (18), and in well completions using slotted liners or in drilling applications.
IPC 8 full level
E21B 29/10 (2006.01); E21B 33/124 (2006.01); E21B 43/10 (2006.01)
CPC (source: EP US)
E21B 29/10 (2013.01 - EP US); E21B 33/124 (2013.01 - EP US); E21B 43/103 (2013.01 - EP US); E21B 43/108 (2013.01 - EP US)
Citation (search report)
- [XA] WO 0077431 A2 20001221 - SHELL INT RESEARCH [NL], et al
- [A] US 2002107562 A1 20020808 - HART BARRIE [GB], et al
- [A] GB 2391882 A 20040218 - SCHLUMBERGER HOLDINGS [VG]
- [A] US 2004055758 A1 20040325 - BREZINSKI MICHAEL M [US], et al
- [A] WO 2004109055 A1 20041216 - BAKER HUGHES INC [US]
- [A] US 2002092648 A1 20020718 - JOHNSON CRAIG D [US], et al
- [A] WO 2005005772 A1 20050120 - SHELL INT RESEARCH [NL], et al
- [A] US 2004256115 A1 20041223 - VINCENT RAY P [US], et al
Citation (examination)
- US 7234533 B2 20070626 - GAMBIER PHILIPPE [US]
- US 2005072579 A1 20050407 - GAMBIER PHILIPPE [US]
- US 4515213 A 19850507 - ROGEN NEIL E [US], et al
- US 2003155159 A1 20030821 - SLACK MAURICE WILLIAM [CA], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
EP 1719873 A1 20061108; CA 2542990 A1 20061104; CA 2542990 C 20150120; US 2007089886 A1 20070426
DOCDB simple family (application)
EP 05290982 A 20050504; CA 2542990 A 20060412; US 38008606 A 20060425