SYSTEM AND METHOD FOR MONITORING THE PERFORMANCES OF A CABLE CARRYING A DOWNHOLE ASSEMBLY

The disclosure relates to a method for monitoring the performances of a cable for carrying a downhole assembly in a wellbore, the cable having at least a conductive core and an insulating outer layer, the method including: - performing on the cable a detection operation for detecting the presence of...

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Bibliographic Details
Main Authors CECCONI, FABIO, BOUFFE, MAXIME, CANOLLE, FLORENT, CHEVILLARD, FRANÇOIS, MICHAUD, CHRISTOPHE
Format Patent
LanguageEnglish
French
German
Published 30.11.2016
Subjects
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INSULATORS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
TESTING
TRANSMISSION
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Summary:The disclosure relates to a method for monitoring the performances of a cable for carrying a downhole assembly in a wellbore, the cable having at least a conductive core and an insulating outer layer, the method including: - performing on the cable a detection operation for detecting the presence of local anomalies of the cable ; - generating an electrical model of a predetermined configuration of an installation including the cable and the downhole assembly disposed in the wellbore, the model being defined in function of the detected local anomalies, - estimating a parameter relative to a signal transmitted by the cable between the downhole assembly and a surface equipment in the predetermined configuration on the basis of the electrical model.
Bibliography:Application Number: EP20150290142