EP 2890866 A4 20160720 - SYSTEM AND METHOD FOR DOWNHOLE SIGNAL ENHANCEMENT
Title (en)
SYSTEM AND METHOD FOR DOWNHOLE SIGNAL ENHANCEMENT
Title (de)
SYSTEM UND VERFAHREN ZUR BOIHRLOCHSIGNALVERSTÄRKUNG
Title (fr)
SYSTÈME ET PROCÉDÉ POUR RENFORCER UN SIGNAL DE FOND DE TROU
Publication
Application
Priority
- US 201261694591 P 20120829
- US 2013056705 W 20130827
Abstract (en)
[origin: WO2014035914A1] A system and method for downhole signal enhancement. The system includes a downhole tool having one or more sensors coupled thereto. The one or more sensors may measure internal pressure and one or more parameters selected from the group consisting of external pressure, pressure sensor temperature, weight on bit, torque on bit, bending moment, roll gyro, tangential acceleration, radial acceleration, and axial acceleration. A noise estimator may be coupled to the downhole tool and estimate a downhole noise component in the one or more parameters. A telemetry modulator may be coupled to the downhole tool and generate a signal that includes the estimated downhole noise component and a telemetry component. The downhole noise component in the signal may be reduced based at least partially upon the estimate.
IPC 8 full level
E21B 47/18 (2012.01); E21B 47/01 (2012.01); E21B 47/06 (2012.01)
CPC (source: EP US)
E21B 47/01 (2013.01 - EP US); E21B 47/06 (2013.01 - EP US); E21B 47/18 (2013.01 - EP US)
Citation (search report)
- [XYI] US 2010307828 A1 20101209 - HUTIN REMI [US], et al
- [XY] WO 2008036793 A2 20080327 - BAKER HUGHES INC [US], et al
- [IY] WO 0186325 A1 20011115 - SCHLUMBERGER TECHNOLOGY CORP [US], et al
- [Y] CA 2325115 A1 20010510 - SCHLUMBERGER CA LTD [CA]
- [I] US 2007192031 A1 20070816 - LI JIANG [US], et al
- [A] US 2010172210 A1 20100708 - CLARK BRIAN [US]
- See references of WO 2014035914A1
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 2014035914 A1 20140306; BR 112015004047 A2 20170704; CA 2881648 A1 20140306; EP 2890866 A1 20150708; EP 2890866 A4 20160720; US 2015218937 A1 20150806
DOCDB simple family (application)
US 2013056705 W 20130827; BR 112015004047 A 20130827; CA 2881648 A 20130827; EP 13832420 A 20130827; US 201314424430 A 20130827