METHOD OF DETERMINING FORMATION ANISOTROPY IN DEVIATED WELLS USING SEPARATION OF INDUCTION MODE

METHOD OF DETERMINING FORMATION ANISOTROPY IN DEVIATED WELLS USING SEPARATION OF INDUCTION MODE

Measurements are made with a multicomponent induction logging tool (10) in earth formations (201) in a borehole (202) inclined to earth formations (201). A combination of principal component measurements (301) is used to determine the horizontal resistivity (305) of the earth formations (201). The d...

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Bibliographische Detailangaben
Hauptverfasser: TABAROVSKY, LEONTY A, RABINOVICH, MICHAEL B, EPOV, MIKHAIL
Format: Patent
Sprache:eng ; fre
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Measurements are made with a multicomponent induction logging tool (10) in earth formations (201) in a borehole (202) inclined to earth formations (201). A combination of principal component measurements (301) is used to determine the horizontal resistivity (305) of the earth formations (201). The determined horizontal resistivities are used in a model for inversion of other components of the data to obtain the vertical formations resistivities (309). When multifrequency measurements are available, frequency focusing (301) is used.