... current injection at plural points and separate it by data processing. This technique is developed aiming at quite rapid survey. We propose that multi-transmission measurement with CDMA technique can be applied to time-domain IP measurement, just by adding a specific artifice of numerical calculation. We...

... of three-dimensional acquisition. Offset-injection systems acquire data on multiple parallel receiver lines, with or without orthogonal receiver dipoles. The Orion 3D pole-dipole system, however, uses a network of orthogonal dipoles and a large number of current injections to collect high-density...

... optimization reference list wilkinson possible array configuration matrix upstream oil & gas better lateral resolution resolution configuration electrode model resolution current injection Introduction 3-D ERI surveys are performed to provide multi directional data which allows the inversion...

... of electrodes used for a unipolar current injection. Assuming that the measurement electrodes are separated from the injection electrodes by a distance we can restrict our consideration with an axially symmetric (say, ring-like) current injection. Under this assumption, the electric tiled potential outside...