| 摘要 |
<p>A method of optimizing underground drilling in which the Specific Energy, such as the Mechanical Specific Energy, is determined at a plurality of weight on bits and drill bit rotary speeds. The drilling operation is optimized by drilling at the operating conditions, including weight on bit and drill bit rotary speed, at which the standard deviation in Mechanical Specific Energy is a minimum. The drilling operation is monitored by determining the Mechanical Specific Energy and changing the operating parameters if the standard deviation in the Mechanical Specific Energy exceeds a predetermined value.</p> |
