The effect of additives on impregnated diamond bit performance.
Selim-AA; Schultz-CW; Strebig-KC
Soc Petrol Eng J 1969 Dec; 9(4):425-433
The effect of some organic additives in diamond drilling of quartzite was investigated in the laboratory. The drill was designed to measure the rate of penetration, the thrust, and the torque and to record each as a function of the distance drilled. A statistical plan was followed throughout the investigation and an equation representing the bit performance was derived from the mathematical theory of reliability. The drilling torque was found to increase with the use of additives while the sliding coefficient of friction and the wear coefficient decreased. The energy per unit volume consumed was found to increase with the use of additives. A hypothesis explaining the effects achieved with the additives is given.
OP; Journal Article
Society of Petroleum Engineers Journal