'Seabed logging': A possible direct hydrocarbon indicator for deepsea prospects using EM energy

A novel use of marine controlled source electromagnetic sounding techniques (CSEM), called seabed logging, may cut exploration costs in deepsea areas. The method has been tested off West Africa in 2000 and in the Norwegian Sea in 2001 with promising results.Statoil has recently released information from ongoing research on electromagnetic (EM) methods for deepsea prospect exploration which shows that in certain areas it is possible to decide whether a deepsea structure, mapped by seismic, has high resistivity or not.1 2 That is, the method may aid to determine the probability for the structure to contain hydrocarbons.The enthusiasm in Statoil has triggered the establishment of a new comp...

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