ADAPTIVE FILTERUNG MIT REFERENZSENSOR ZUR UNTERDRÜCKUNG DES GERÄTESPEZIFISCHEN STÖRSIGNALS IN EINER MWD MESSUNG

ADAPTIVE FILTERUNG MIT REFERENZSENSOR ZUR UNTERDRÜCKUNG DES GERÄTESPEZIFISCHEN STÖRSIGNALS IN EINER MWD MESSUNG

A method for eliminating the tool mode signal from a received combined signal including both tool mode and formation mode components, uses a signal from a reference receiver that is consists primarily of the tool mode signal. A transfer function is derived relating the time reversed combined signal...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: DUBINSKY, VLADIMIR
Format: Patent
Sprache:ger
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A method for eliminating the tool mode signal from a received combined signal including both tool mode and formation mode components, uses a signal from a reference receiver that is consists primarily of the tool mode signal. A transfer function is derived relating the time reversed combined signal and the time reversed reference signal and used to predict the tool mode portion of the combined signal. Subtracting the predicted tool mode portion of the combined signal from the combined signal gives an estimate of the formation mode component.