EP 1223303 A1 20020717 - Treatment fluid injection apparatus and method
Title (en)
Treatment fluid injection apparatus and method
Title (de)
VORRICHTUNG UND VERFAHREN ZUM EINSPRITZEN VON BEHANDLUNGSFLÜSSIGKEITEN
Title (fr)
APPAREIL ET PROCEDE D'INJECTION DE FLUIDE DE TRAITEMENT
Publication
Application
Priority
US 48919000 A 20000120
Abstract (en)
A fluid injection apparatus (10) and method provides a controlled volume displacement for use of the apparatus in a subterranean well. Pressure is applied within a conduit carrying the apparatus into the well for activating a piston (13) and contracting a chamber (20) containing a treatment fluid for ejection of the treatment fluid into the well. A plurality of chambers may be isolated by the piston means relative to the conduit passageway for selective, incremental, ejection of the fluid and treatment of one or more zones or sections within the well. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 21/12 (2006.01); E21B 27/02 (2006.01); E21B 43/25 (2006.01)
CPC (source: EP)
E21B 21/12 (2013.01); E21B 27/02 (2013.01); E21B 43/25 (2013.01)
Citation (search report)
- [X] US 3273647 A 19660920 - BRIGGS JR GEORGE E, et al
- [X] US 5582251 A 19961210 - BAILEY J ROBERT [US], et al
- [X] US 2986212 A 19610530 - SCHULTZ WILBURN E
- [PX] WO 0066878 A1 20001109 - UNIV CALIFORNIA [US]
- [E] WO 0138691 A2 20010531 - SHELL INT RESEARCH [NL], et al
- [A] US 5425424 A 19950620 - REINHARDT PAUL A [US], et al
- [A] US 4279304 A 19810721 - HARPER JAMES C
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1223303 A1 20020717; CA 2331473 A1 20010720; NO 20010314 D0 20010119; NO 20010314 L 20010723
DOCDB simple family (application)
EP 01300538 A 20010122; CA 2331473 A 20010119; NO 20010314 A 20010119