Abstract
ABSTRACT Chevron USA in partnership with Mobil Oil constructed an ice island made from seawater spray, that served as a drilling platform to evaluate the Karluk Prospect during the winter of 1988/1989. The island was located in the shallow coastal waters of the Alaskan Beaufort Sea, 25 miles northeast of Prudhoe Bay. The project had only one predecessor in Alaska, but was deemed most advantageous as a drilling platform because of site selection, environmental compatibility, and overall econnomy. A land drilling program was modified to incorporate the use of the spray ice island. Karluk Island was constructed and an 11,19O' well was drilled under the allotted time and project AFE, despite one of the most extreme winters on record. Most importantly, the Karluk Project substantiates the viability of a spray ice island as a safe and economical drilling site for the shallow offshore Arctic environment.
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