Abstract

The controlled-source electromagnetic (CSEM) method has been applied to oil and gas exploration and production for more than 10 years. During this time, most of the focus has been on derisking deep- and ultradeep-water drilling decisions. In this article, we will consider how EM methods can be optimized for continental shelf applications, which represent approximately 80% of offshore discoveries.

Historically, applications of EM on the continental shelf have been limited for two principal reasons:

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