大家都搜：
钻井成本；钻头成本；打钻费
1、ocean drilling───海洋钻探
2、crowner drilling───冠钻
3、drilling hole───钻孔
4、drilling operation───钻井作业
5、choral drilling───齐声练习
6、drilling down───向地下钻；深度探讨
7、drilling team───钻井队
8、drilling jobs───钻井作业
9、drilling───n.钻孔；训练，教练；演练；v.钻孔；训练（drill的ing形式）
1、It is the important way for shortening drilling cycle and decreasing the drilling cost.───这是缩短钻井周期、降低钻井成本的重要途径。
2、The approach can decrease drilling cost and reduce drilling period, realize great economic benifit in offshore drilling operation.───这种方法可节约海上钻井成本，缩短建井周期，获得显著的经济效益和社会效益。
3、The cost of bits consumption is an important part of drilling cost in the down the-hole drilling.───潜孔凿岩中，钻头费用消耗是穿孔成本的重要组成部分。
4、Evaluation of the service life of a rotary drilling line is of great importance to ensuring safe drilling and reducing drilling cost.───钢丝绳使用寿命评定对确保钻井安全与降低钻井成本具有十分重要的意义。
5、These new equipments can bring higher drilling rate, lower drilling cost and remarkable economy benefits.───采用这些新设备可提高钻井速度，降低钻井成本，经济效果显著。
6、A method is proposed to determine the bit footage when the drilling cost per meter reaches a minimum.───提出了一种按最低成本原则确定单只钻头进尺的实用方法。
7、Drilling cost is classified. Factors affecting drilling cost is specified and the way to decrease drilling cost is defined.───对钻井成本进行了分类，明确了钻井成本的影响因素和降低钻井成本的途径。
8、drilling pattern should be "high drilling speed, good quality of borehole, and low drilling cost" .───追求“钻井速度高、井眼质量好、钻井成本低”的钻井模式；
9、Evaluation of the service life of a rotary drilling line is of great importance to ensuring safe drilling and reducing drilling cost.───使用寿命评定对确保钻井安全与降低钻井成本具有十分重要的意义。
1、These new equipments can bring higher drilling rate, lower drilling cost and remarkable economy benefits.
2、The operating performance quality of the roller bit, which is the most main broken crag tool, directly influence the well drilling quality, well drilling efficiency and well drilling cost.
3、The drilling cost formula is deduced from classification drilling cost components; hence, an approach to reduce drilling cost is presented.
4、Party A with totle drilling cost, contract wildcat to be drilled to artesian well contractor.
5、Airline cost structure is to point to each cost factor the scale in totle drilling cost.
6、The drilling cost formula is deduced from classification drilling cost components an approach tois presented.