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Model ID: 2028

Simulation of an Electromagnetic Sounding Method for Oil Prospecting

The Controlled Source Electromagnetic (CSEM) method for oil prospecting has emerged as a promising technique during recent years. The method uses a mobile horizontal electric dipole transmitter and an array of seafloor electric receivers. The seafloor receivers measure the low frequency electrical field generated by the source. Some of the transmitted energy is reflected/guided by the resistive reservoir and results in a higher received signal.

The model here demonstrates this method. It uses a mobile, horizontal 1 Hz electric dipole antenna that is towed 150 m above the sea floor. An array of sea floor receivers measure the electric field at various distances from the antenna.

Slice plot of the magnitude of the electric field and boundary plot of the z-component of the magnetic field. Arrows indicate direction of the electric field.

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