钻井时间 meaning in Chinese

drilling time
rig time

Actual drilling time
纯钻井时间
Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well , ultradeep well , high inclined hole , extended reach well and horizontal well , therefore , friction and wear between casing and drill pipe became a severe problem
在深井、超深井、大斜度井、大位移井及水平井中，钻井时间延长、钻柱作用在套管上的侧向力增高，因此套管和钻柱的摩擦与磨损问题越来越突出。
By taking the economic relation between drilling workload and drilling speed as a basis , an exponential analysis method is adopted from practical angle and the factors influencing drilling workload and drilling speed are overall analyzed in the paper , which is of important significance for raising drilling speed and decreasing drilling time
文章以钻井工作量和钻井速度的经济关系为基础，从实用的角度出发，采用指数分析的方法，对影响钻井工作量及钻井速度的因素作了全面的分析，对提高钻探公司钻井时间和钻井速度具有重要的参考价值。