oa Feasibility Study of Marine Controlled-Source Electromagnetic for Gas Hydrate

Marine controlled source electromagnetic method may be one of the most significant new technologies for hydrocarbon exploration. The promise for the technology lies in its ability to differentiate resistive, potentially oil-bearing intervals from surrounding, more conductive water-bearing units. The principle is the same as that used in well logging devices to identify hydrocarbon zones in well bores. The technique is not new but the capability to resolve relatively thin resistive intervals in the depth offers new promise to lower the risk through direct hydrocarbon indicators in conjunction with modern seismic methods. In this paper, we discuss the capability of marine CSEM method towards gas hydrate exploration by numerical studies of 1-D modeling and 2.5-D inversion.