Statoil Petroleum As

Equinor Energy As

Arne Johannes Kaaijk Jenssen

Lasse Amundsen

Lars Ole Løseth

Lars Ole Loseth

A method of processing controlled source electromagnetic (CSEM) data is provided for reducing the airwave contribution. CSEM data are acquired, for example using a conventional towed source () and receiver () arrangement. The recorded data are weighted in accordance with the geometrical spreading of the airwave component. The differences between pairs of weighted data records are then formed.

Method of and apparatus for processing CSEM data, program, storage medium, computer and use of method

There is disclosed a method of performing a controlled source electromagnetic survey, which includes in one embodiment deploying a receiver and an electric dipole source. The source defines a dipole axis. An electromagnetic field is transmitted from the electric dipole source. First and second horizontal components of an electromagnetic field response are detected using the receiver. A vertical component of the electromagnetic field response is then estimated using the detected first and second horizontal components of the electromagnetic field response.

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Trondheim, Norway

Arne Johannes Kaaijk Jenssen