The involvement of the geologist in the total planning of deep exploration wells and the reduction of total well cost is advocated. The planning stage utilizes all available wire line logs for pressure plots and the correlation of lithology for optimized programs. The drilling stage utilizes drilling variable plots for pore pressure and rupture-pressure determination. All geologic, mechanical, and hydraulic components are monitored closely for maximum penetration, evaluation, and safety. A final evaluation and data storage method is recommended.

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