Remote Detection of Hydrocarbon Filled Layers Using Marine Controlled Source Electromagnetic Sounding

D-08 REMOTE DETECTION OF HYDROCARBON FILLED LAYERS USING MARINE CONTROLLED SOURCE ELECTROMAGNETIC SOUNDING 1 T. EIDESMO 1 S. ELLINGSRUD 1 L.M.MACGREGOR 3 S. CONSTABLE 2 M.C.SINHA 3 S. JOHANSEN 4 H. WESTERDAHL 5 and F.N.KONG 5 Introduction Measurements of sub-seafloor electrical resistivity obtained by wire line logging of wells have traditionally played a crucial role in hydrocarbon exploration and reservoir assessment and development. However there are clear advantages to developing non-invasive geophysical methods capable of providing similar information albeit at a lower vertical resolution. The vast saving in terms of avoiding the costs of drilling test wells into structures that