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Preliminary Geophysical Characterization of Two Oil Production Sites, Osage County, OK. Title slide site A. Bruce D Smith Robert J Bisdorf James K. Otton Robert J Horton Ray S Hutton. GEOPHYSICAL METHODS USED. DC RESISTIVITY SOUNDING
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Preliminary Geophysical Characterization of Two Oil Production Sites, Osage County, OK Title slide site A Bruce D Smith Robert J Bisdorf James K. Otton Robert J Horton Ray S Hutton
GEOPHYSICAL METHODS USED • DC RESISTIVITY SOUNDING • obtain variation in electrical resistivity as a function • of depth (to about 40 meters) • ELECTROMAGNETIC PROFILING (EM31) • obtain variation in electrical conductivity as a function • of position (mapping lateral variations) 3 to 6 meters • TOTAL FIELD MAGNETICS (not discussed) geologic mapping detect magnetic metallic objects (oil field pipes etc.) • ELECTROMAGNETIC PROFILE (EM34…not discussed) • depth to 40m but very noisy due to metallic pipes
EM31 CONDUCTIVITY SURVEY Vertical dipoles depth ~4.5m Horizontal dipoles depth ~2.25m