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SAND91-0980 DE92 013460
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Printed February 1992
Electromagnetic Oil Field Mapping for Improved Process
Monitoring and Reservoir Characterization:
A Poster Presentation
John R. Waggoner and Arthur J. Mansure
GeoTechnology Research Division
Sandia National Laboratories
Albuquerque, NM 87185
Abstract
This report is a permanent record of a poster paper presented by the authors at the
Third International Reservoir Characterization Technical Conference in Tulsa,
Oklahoma on November 3-5, 1991. The subject is electromagnetic (EM)
techniques that are being developed to monitor oil recovery processes to improve
overall process performance. The potential impact of EM surveys is very
significant, primarily in the areas of locating oil, identifying oil inside and outside
the pattern, characterizing flow units, and pseudo-real time process control to
optimize process performance and efficiency. Since a map of resistivity alone has
little direct application to these areas, an essential part of the EM technique is
understanding the relationship between the process and the formation resistivity at
all scales, and integrating this understanding into reservoir characterization and
simulation. First is a discussion of work completed on the core scale petrophysics
of resistivity changes in an oil recovery process; a steamflood is used as an
example. A system has been developed for coupling the petrophysics of resistivity
with reservoir simulation to simulate the formation resistivity structure arising from a
recovery process. Preliminary results are given for an investigation into the effect
of heterogeneity and anisotropy on the EM technique, as well as the use of the
resistivity simulator to interpret EM data in terms of reservoir and process
parameters. Examples illustrate the application of the EM technique to improve
process monitoring and reservoir characterization.
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Waggoner, J. R. & Mansure, A. J. Electromagnetic oil field mapping for improved process monitoring and reservoir characterization: A poster presentation, article, February 1, 1992; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1319899/m1/5/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.