Abstract
A comprehensive, systematic method tor selecting a mobile offshore drilling unit is presented. Going beyond the normal, simplistic cost analysis, the procedure includes the unit's performance capabilities and operating time as criteria. The analysis evaluates the suitability of the broad classes of units and/or specific units for the intended operating program. At key points in the analysis subjective decisions are made by the evaluator in keeping with his specific perspective and drilling program needs. Thus the selection utilizes both the quantitative information available on the units and planned drilling program as well as the qualitative decision-making ability of the evaluator. As an example, an evaluation of a general series of units for a multiple-location, multiple-well North Sea drilling program is presented.
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