Method and apparatus for ascertaining a characteristic of a geol

Details Method and apparatus for ascertaining a characteristic of a geol Method and apparatus for ascertaining a characteristic of a geol

1999-05-27

2000-12-26

McElheny, Jr., Donald E.

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

702 9, 702 10, G01V 338

Patent

active

06167348&

ABSTRACT:
A method for ascertaining a characteristic of a geological formation surrounding a wellbore. The method comprises first generating a set of data including azimuthal and radial information. A set of parameters indicative of fluid behavior in the formation is determined for each one of at least two azimuths from the generated data. A tool-specific invasion factor is then determined. The characteristic is then determined from the parameters, the azimuthal information, and the invasion factor.

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