EP 0622523 A2 19941102 - Well screen having a slurry flow path.
Title (en)
Well screen having a slurry flow path.
Title (de)
Bohrlochfilter mit einem Schlammdurchgang.
Title (fr)
Filtre de puits avec passage de boue.
Publication
Application
Priority
JP 12784693 A 19930430
Abstract (en)
A well screen (1) having slurry flow paths (6) enclosed therein includes support rods (3) extending in the axial direction of the screen disposed cylindrically at a predetermined interval in the circumferential direction of the screen, a wire (5) wound on the outer periphery of said support rods so as to form slits (4) of a predetermined width, one or more flow paths (6) for gravel-containing slurry provided inside of the wire and extending in the axial direction of the screen, and openings (7) for communicating the flow paths with the outside of the screen. Lowering and lifting of the screen through a wellbore can be made smoothly without interfering of the slurry flow paths with the wellbore and installation of the screen can thereby be faciliated. <IMAGE>
IPC 1-7
IPC 8 full level
B07B 1/00 (2006.01); E03B 3/18 (2006.01); E21B 43/04 (2006.01); E21B 43/08 (2006.01)
CPC (source: EP)
E21B 43/04 (2013.01); E21B 43/088 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0622523 A2 19941102; EP 0622523 A3 19950621; AU 6068994 A 19941103; AU 676271 B2 19970306; BR 9401632 A 19941122; CA 2122106 A1 19941031; CA 2122106 C 19980630; CN 1104552 A 19950705; JP H06313330 A 19941108; RU 2079638 C1 19970520; RU 94015178 A 19960620
DOCDB simple family (application)
EP 94106648 A 19940428; AU 6068994 A 19940427; BR 9401632 A 19940427; CA 2122106 A 19940425; CN 94106622 A 19940429; JP 12784693 A 19930430; RU 94015178 A 19940428