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Preliminary Geophysical Characterization of Oil Production Sites in Osage County, OK

This presentation discusses the geophysical methods used at two oil production sites in Osage County, OK, including DC resistivity sounding and electromagnetic profiling to map subsurface variations. The study covers depth profiling and lateral variations up to 6 meters, focusing on detecting metallic objects like oil field pipes. Results and interpretations of the geophysical surveys are presented, highlighting variations in electrical resistivity and conductivity. The challenges of working in areas with metallic pipes are also addressed.

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Preliminary Geophysical Characterization of Oil Production Sites in Osage County, OK

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  1. 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

  2. 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

  3. DC RESISTIVITY

  4. EM31 CONDUCTIVITY SURVEY Vertical dipoles depth ~4.5m Horizontal dipoles depth ~2.25m

  5. A SITE LOCATIONDC RESISTIVITY SOUNDINGS

  6. DC SOUNDINGS SITE A

  7. DC SOUNDING CONDUCTIVITY SECTION

  8. SITE A VMD 4m CONDUCTIVITY

  9. SITE A ORTHOPHOTO

  10. SITE A VMD ORTHOPHOTO

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