EP 0722037 A2 19960717 - Apparatus for injecting fluid into a wellbore
Title (en)
Apparatus for injecting fluid into a wellbore
Title (de)
Vorrichtung zur Injektion von Fluiden in ein Bohrloch
Title (fr)
Dispositif pour l'injection d'un fluide dans un trou de forage
Publication
Application
Priority
- US 37254695 A 19950113
- US 55519395 A 19951108
Abstract (en)
An apparatus for injecting fluid into a wellbore. The apparatus comprises a housing (12) and a valve sleeve (50). The housing (12) has a chamber (36) and a port (30) in communication with the chamber (36). The chamber (36) is adapted to hold a first fluid, such as a cement accelerant, therein. The valve sleeve (50) serves to open the port (30) so that the fluid first fluid is free to flow out of the chamber (36) through the port (30) in response to the flow of a second fluid, such as cement. A portion of the valve sleeve (50) extends below the housing (12) so that when the valve sleeve (50) engages a surface therebelow, the valve sleeve (50) is forced upwardly to open the port (30). The housing (12) and/or the valve sleeve (50) may be made of a on-metallic material in order to facilitate drilling of the apparatus. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 27/02 (2006.01); E21B 33/16 (2006.01); E21B 47/09 (2012.01)
CPC (source: EP US)
E21B 27/02 (2013.01 - EP); E21B 33/16 (2013.01 - EP US); E21B 47/09 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0722037 A2 19960717; EP 0722037 A3 19970102; EP 0722037 B1 20001018; DE 69610647 D1 20001123; DE 69610647 T2 20010215
DOCDB simple family (application)
EP 96300274 A 19960112; DE 69610647 T 19960112