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- W2037805510 abstract "Cross-well electrical measurement as known in the oil industry is a method for determining the electrical conductivity distribution between boreholes from the electrostatic field measurements in the boreholes. We discuss the reconstruction of the conductivity distribution of a three-dimensional domain. The measured secondary electric potential field is represented in terms of an integral equation for the vector electric field. This integral equation is taken as the starting point to develop a non-linear inversion method, the so-called contrast source inversion (CSI) method. The CSI method considers the inverse scattering problem as an inverse source problem in which the unknown contrast source (the product of the total electric field and the conductivity contrast) in the object domain is reconstructed by minimizing the object and data error using a conjugate-gradient step, after which the conductivity contrast is updated by minimizing only the error in the object. This method has been tested on a number of numerical examples using the synthetic ‘measured’ data with and without noise. Numerical tests indicate that the inversion method yields a reasonably good reconstruction result, and is fairly insensitive to added random noise." @default.
- W2037805510 created "2016-06-24" @default.
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- W2037805510 date "2000-01-01" @default.
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- W2037805510 title "Non-linear three-dimensional inversion of cross-well electrical measurements" @default.
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- W2037805510 doi "https://doi.org/10.1046/j.1365-2478.2000.00170.x" @default.
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