EP 0427422 B1 19950329 - Casing valve.
Title (en)
Casing valve.
Title (de)
Futterrohrventil.
Title (fr)
Vanne de tubage.
Publication
Application
Priority
US 43514489 A 19891108
Abstract (en)
[origin: EP0427422A2] A casing valve for use in a well comprises an outer housing (50) having a longitudinal passageway (52) defined therethrough and having a housing wall (54) with a housing communication port (56) defined through said housing wall, said housing including a first disintegratable plug (96) initially blocking said housing communication port; and a sliding sleeve (66) slidably disposed in said longitudinal passageway, said sleeve having a longitudinal sleeve bore (90) defined therethrough and having a sleeve wall (92) with a sleeve communication port (94) defined through said sleeve wall, said sleeve including a second disintegratable plug (98) initially blocking said sleeve communication port, said sleeve being selectively movable relative to said housing between a first position wherein said housing communication port and said sleeve communication port are out of registry with each other and a second position wherein said ports are in registry with each other.
IPC 1-7
IPC 8 full level
E21B 23/00 (2006.01); E21B 33/14 (2006.01); E21B 34/06 (2006.01); E21B 34/14 (2006.01); E21B 43/11 (2006.01)
CPC (source: EP US)
E21B 23/006 (2013.01 - EP); E21B 33/14 (2013.01 - EP); E21B 34/06 (2013.01 - EP); E21B 34/063 (2013.01 - EP); E21B 34/14 (2013.01 - EP US); E21B 43/11 (2013.01 - EP); E21B 2200/06 (2020.05 - EP)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0427422 A2 19910515; EP 0427422 A3 19911023; EP 0427422 B1 19950329; AU 638282 B2 19930624; AU 6465490 A 19910516; CA 2029529 A1 19910509; CA 2029529 C 19990803; CN 1051958 A 19910605; DE 69018192 D1 19950504; DE 69018192 T2 19950727; MY 104783 A 19940531
DOCDB simple family (application)
EP 90311621 A 19901023; AU 6465490 A 19901016; CA 2029529 A 19901108; CN 90109069 A 19901108; DE 69018192 T 19901023; MY PI19901958 A 19901106