EP 0870900 A1 19981014 - Downhole monitoring method and device
Title (en)
Downhole monitoring method and device
Title (de)
Verfahren und Gerät zur Bohrlochüberwachung
Title (fr)
Procédé et dispositif de surveillance d'un puits
Publication
Application
Priority
- EP 97201092 A 19970409
- EP 9802187 W 19980408
Abstract (en)
A method and device are provided for monitoring the interfaces between and other physical characteristics of fluids in the pore spaces of an underground formation. The device (4) comprises a sleeve (5) around which, when in use, an annular measuring chamber (8) is formed which is in fluid communication with the pore spaces of the surrounding formation but which is hydraulically isolated from other parts of the wellbore of a production or other well in which the device (4) is mounted. An array of capacitor or other sensors (11) is mounted in the measuring chamber (8) for measuring the interfaces between, or other physical characteristics of, the fluids in the measuring chamber (8). <IMAGE>
IPC 1-7
IPC 8 full level
E21B 47/04 (2012.01); E21B 47/10 (2012.01)
CPC (source: EP US)
E21B 47/047 (2020.05 - EP); E21B 47/113 (2020.05 - EP); E21B 49/088 (2013.01 - EP US)
Citation (search report)
- [XY] US 2605637 A 19520805 - RHOADES EARLE D
- [YD] DE 2621142 A1 19771117 - KAVERNEN BAU BETRIEBS GMBH
- [Y] FR 2435025 A1 19800328 - SOLMARINE
- [AD] US 2564198 A 19510814 - ELKINS LLOYD E
- [A] FR 1322402 A 19630329 - PETROLEUM RES CORP
- [A] WO 9623957 A1 19960808 - MOBIL OIL CORP [US]
Designated contracting state (EPC)
GB
DOCDB simple family (publication)
EP 0870900 A1 19981014; EP 0973996 A1 20000126; EP 0973996 B1 20020814; WO 9845574 A1 19981015
DOCDB simple family (application)
EP 97201092 A 19970409; EP 9802187 W 19980408; EP 98922712 A 19980408