drilling rate造句

Water jet flow is one of the decisive factors for drilling rate during rock bit drilling.

In Yanchang oilfield, serious lost circulation often occur during drilling in Panlong and Zichang areas, directly affect drilling rate.

Using this model, using pattern recognition method can be carried out on the work area of other pending drilling bit selection, to improve the drilling rate when drilling to reduce drilling risk.

Ultra-high pressure water jet assisted mechanical drilling is known as one of the advanced and promising technology to increase drilling rate for deep oil and gas wells.

The drilling machine was innovated so that the Labour intensity is lightened and the work ratio is rised. The drilling rate of progress raise 50% and obtain good economy benefit.

The rock drilling rate, service life and tungsten carbide toothavailability of the series of bits are obviously better than those of chip and button type bits.