EP 2378058 B1 20140813 - Monitoring sand screen
Title (en)
Monitoring sand screen
Title (de)
Überwachung eines Sandfilters
Title (fr)
Surveillance d'un tamis à sable
Publication
Application
Priority
GB 201006306 A 20100415
Abstract (en)
[origin: EP2378058A2] A method to monitor the integrity of a sand screen normally comprising: (i) directing at least one electromagnetic wave towards a sand screen under controlled conditions outside of a borehole; (ii)detecting at least one reflected or emitted electromagnetic wave from said sand screen in step (i) in order to produce at least one data measurement then (a) directing at least one electromagnetic wave towards the sand screen inside a borehole; and (b) detecting at least one reflected or emitted electromagnetic wave from said sand screen inside the borehole in order to produce at least one data measurement. The method normally emits and detects alternating magnetic fields/waves using an electromagnetic logging tool and can surprisingly provide useful data on the condition of sand screens in a borehole.
IPC 8 full level
E21B 43/08 (2006.01); E21B 47/09 (2012.01)
CPC (source: EP)
E21B 43/08 (2013.01); E21B 47/092 (2020.05)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2378058 A2 20111019; EP 2378058 A3 20121031; EP 2378058 B1 20140813; DK 2378058 T3 20141020; GB 201006306 D0 20100602
DOCDB simple family (application)
EP 11159183 A 20110322; DK 11159183 T 20110322; GB 201006306 A 20100415