EP 2638244 B1 20200325 - SYSTEM AND METHOD FOR REMOTE SENSING
Title (en)
SYSTEM AND METHOD FOR REMOTE SENSING
Title (de)
SYSTEM UND VERFAHREN FÜR FERNMESSUNG
Title (fr)
SYSTÈME ET PROCÉDÉ DE TÉLÉDÉTECTION
Publication
Application
Priority
- US 41317910 P 20101112
- US 2011060454 W 20111111
Abstract (en)
[origin: WO2012065118A2] A system, method and device may be used to monitor conditions in a borehole. Well tubing and casing act as a conductive pair for A system, method and device may be used to monitor conditions in a borehole. Well tubing and casing act as a conductive pair for delivering power to one or more downhole active sensors. At the surface, power and signal are isolated so that the same conductive pair may act to transmit the sensor signals to the surface. In an embodiment, the sensor signals are RF signals and the surface electronics demodulate the RF signals from the sensor power.
IPC 8 full level
E21B 47/06 (2012.01); E21B 47/12 (2012.01); G01V 11/00 (2006.01)
CPC (source: EP US)
E21B 47/06 (2013.01 - EP US); E21B 47/12 (2013.01 - EP US); E21B 47/13 (2020.05 - EP US)
Citation (examination)
WO 2008133633 A1 20081106 - HALLIBURTON ENERGY SERV INC [US], et al
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)
WO 2012065118 A2 20120518; WO 2012065118 A3 20130307; AU 2011325931 A1 20130502; AU 2011325931 B2 20151210; BR 112013011709 A2 20170725; BR 112013011709 B1 20201006; CA 2817593 A1 20120518; CA 2817593 C 20180918; CN 103221635 A 20130724; EA 025452 B1 20161230; EA 201390692 A1 20140331; EP 2638244 A2 20130918; EP 2638244 B1 20200325; MX 2013005021 A 20130603; US 2012211278 A1 20120823
DOCDB simple family (application)
US 2011060454 W 20111111; AU 2011325931 A 20111111; BR 112013011709 A 20111111; CA 2817593 A 20111111; CN 201180054173 A 20111111; EA 201390692 A 20111111; EP 11806009 A 20111111; MX 2013005021 A 20111111; US 201113295784 A 20111114