Transient marine electromagnetics in shallow water: a sensitivity and resolution study of the vertical electric field at short rangesстатья
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
Аннотация:We analyzed the sensitivity of transient step-off responses of shallow-water marine controlled-source electromag- netic configurations, specifically, horizontal electric dipole sources and vertical electric dipole receivers in the near field of the time domain (HED-Ez(t)). The capabilities of this configuration were compared with commonly used configu- rations, specifically, horizontal electric dipole sources and horizontal electric dipole receivers in the frequency domain (HED-Ex(f)). By examining of some simplified models of local hydrocarbon reservoirs representing separate resistive bodies of limited size buried at different depths in the conductive sediments, and an example of a complex 3D geologic structure, the applications of HED-Ez(t)) configurations and their limitations in terms of depth, size, and transverse resistance were evaluated.