6 July 2000 Improved reservoir characterization and monitoring using electromagnetic geophysical techniques
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Abstract
This paper presents recent advances and case histories of two non-traditional electromagnetic geophysical techniques for oil reservoir characterization, and production/process monitoring. The crosswell electromagnetic induction method has seen rapid advancement since its inception in the early 1990's, and to this date numerous surveys have been completed in active oil fields as well as other sites. Here one example is given where a 2D electrical conductivity image derived from crosswell data is employed for reservoir characterization, and two other examples presented where the method provided valuable insight into the 2- and 3-D progress of water flood operations. The second, less mature method discussed involves 3-D imaging from multi-component induction log data. Here all three components of the magnetic field generated by a single or multiple sources are inverted to produce estimates of the electrical conductivity distribution surrounding the borehole. For this technology an example is given of three component data acquisition in an active oil field, as well as a proof of the 3-D imaging concept on a synthetic data set.
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David L. Alumbaugh, David L. Alumbaugh, Michael J. Wilt, Michael J. Wilt, } "Improved reservoir characterization and monitoring using electromagnetic geophysical techniques", Proc. SPIE 4129, Subsurface Sensing Technologies and Applications II, (6 July 2000); doi: 10.1117/12.390611; https://doi.org/10.1117/12.390611
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