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。
Slim hole sidetracking and window milling technology is one of the effective ways to cut down the comprehensive drilling cost and improve oil production rate.
应用小井眼开窗侧钻技术是降低钻井综合成本，提高原油产量的重要途径之一。
Correctly recognizing the differential pressure sticking is of great significance to reduce complex accidents of borehole, increase drilling speed and reduce the drilling cost.
正确认识压差卡钻，对于减少井下复杂事故，提高钻井速度，降低钻井成本具有十分重要的意义。
The key indicators for evaluating the benefit of explorational activity should include 2-D seismic cost per kilometer, 3-D seismic cost per square kilometer, and drilling cost per meter in depth.
每公里二维地震成本、每平方公里三维地震成本和每米进尺钻井成本是评价勘探作业效率的关键指标。
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。
A method is proposed to determine the bit footage when the drilling cost per meter reaches a minimum.
本文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。
Rock drill-ability is the basic parameter to optimize bits, make drilling plan and reduce drilling cost.
岩石可钻性是优选钻头，制定生产定额以及降低钻井成本的基础。
It is proposed that economical performance of diamond bits be quantitatively appraised by use of bit drilling cost.
并提出用钻头钻进成本定量地评价金刚石钻头的经济效果。
The drilling cost formula is deduced from classification drilling cost components; hence, an approach to reduce drilling cost is presented.
通过对钻探成本构成的分类，推导出钻探成本公式。
Abstract: To further improve the drilling efficiency and reduce the drilling cost, the MPD equipment with single-channel has been developed.
摘要：为进一步提高钻井效率和降低钻井成本，研制了单通道控压钻井装备。
Optimizing wellbore trajectory design is the key link to ensure the quality of well bore, decrease accidents in well hole and lower drilling cost.
优化井眼轨道设计是保证井身质量，减少井下事故，降低钻井成本的关键环节之一。
It is very important for improving drilling rate, reducing drilling cost and safety drilling to carry out drill stem failure analysis and prevention.
开展油田钻柱失效分析与预防对提高钻井速度、降低钻井成本及井下安全钻进具有重要意义。
Drilling in gravel stratum is one of present difficulties in drilling area with low drilling speed, short service life of bit and high drilling cost.
卵砾石地层钻进是钻探的难题之一，不仅钻进速度低，钻头的使用寿命短，而且钻探成本高。
The air drilling may largely enhance the drilling speed, shorten the drilling time, decrease the drilling cost. The technology, however, needs expensive surface equipments. A …
空气钻井主要应用于中低压地层，可以大幅度提高钻井速度，缩短建井周期，降低钻井成本，但需要昂贵的地面设备。
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.
牙轮钻头是钻井工程中最主要的破岩工具，其工作性能的好坏直接影响钻井质量、钻井效率和钻井成本。
In the upstream link before refining, drilling cost accounts for 60 ~ 70% of overall costs, and has remarkably capital-intensive, knowledge-intensive and technology-intensive characteristics.
在炼化之前的石油上游环节中，钻井成本占到了总成本的60 ~ 70%，具有显著的资金密集型、知识密集型、技术密集型特征。
In order to reduce drilling cost, the casing drilling technique rotated by rotary table and associated tools were developed considering the actual condition of domestic onshore drilling tools.
根据国内陆上油田钻井装备的实际状况，本着降低钻井成本的目的，研究出了采用转盘驱动的适用于陆上油田浅开发井的简易套管钻井技术及其配套工具。
Comparison result shows that the production efficiency of the former is obviously higher than the latter. Drilling cost per meter reduces by RMB 600 yuan, showing notable economic and social benefit.
对比结果表明，前者生产时效明显高于后者，每米进尺成本可降低600元左右，其经济效益和社会效益显著。
Comparison result shows that the production efficiency of the former is obviously higher than the latter. Drilling cost per meter reduces by RMB 600 yuan, showing notable economic and social benefit.
对比结果表明，前者生产时效明显高于后者，每米进尺成本可降低600元左右，其经济效益和社会效益显著。
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