LIMESTONE, SHALE PENETRATION RATE EQUATIONS DEVELOPED

Mohammed E. Osman United Arab Emirates University Abu Dhabi, U.A.E. Sabry A. Mohammed Cairo University Cairo Increasing rotary speed has a greater effect on increasing rate of penetration in Abu Dhabi shales and limestones than other drilling parameters, including various mechanical and hydraulic factors. The graphical presentation of drilling parameters and penetration rate data found that rotary speed is the most important factor in controlling rate of penetration.

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