Drilling performance is stable, accurate size and efficiency.
钻孔性能稳定，尺寸准确、效率。
To raise drilling performance of new micro-drill, a novel method was advanced for reginding of chisel edge.
为了提高新型微钻头的钻削性能，提出了一种适合于微钻头的横刃修磨原理及方法。
Providers rotation torque to 17,500 ft-lbs (23,727 Nm) with variable rotation speed to 180 RPM for exceptional horizontal and direction drilling performance.
最高转矩17，500 英尺·磅（23，727牛顿·米），可变转速最高180转/分，带来无与伦比的水平钻井与定向钻井性能。
Comparing with steel drilling pipes, the aluminium well drilling pipes are lighter in weight, more durable in use, save cost in operation and better in drilling performance.
同钢钻探管相比，铝钻探管具有质轻、使用寿命长、节约操作费用、钻探性能优良等特点。
The flow field of PDC bits is very complicated during drilling process, while optimizing its hydraulics parameters is an effective method to improve its drilling performance.
PDC钻头在实钻过程中井底流场非常复杂，而优化其水力学参数是提高钻头钻井能力的有效手段。
Surface logging services leverage drilling data acquired from downhole sensors to provide valuable information about well status and drilling performance to help drill Wells more efficiently.
地面录井服务利用从井下传感器获取的钻井数据，提供有价值的井况和钻井信息，帮助作业者实现更有效地钻进。
Usually, drilling optimization problems are solved with a deterministic mathematical model in which indeterminate factors that may affect drilling performance are not taken into consideration.
通常钻井参数优化被认表达一个确定性优化问题，没有考虑其中的不确定性因素。
Hollow glass microspheres has a good rolling performance, and it can increase the drilling rate, and Significantly improve the drilling efficiency.
空心玻璃微珠的滚动性能好，可提高机械钻速，从而显著提高钻井效率。
The performance difference between air crew drill and mud motor was analyzed under the air drilling condition.
对比分析了空气螺杆钻具与泥浆马达在空气钻井井况下的性能差异。
Above-mentioned analyses in this paper lay a theoretical basis for improving performance of the device and doing technologic experiments of vibration drilling.
上述分析为装置的性能改善以及微小孔振动钻削工艺实验奠定了一定的理论基础。
In addition, the drilling characteristic curves and the performance of PDC bits designed with different schemes are predicted.
此外，还对PD C钻头的钻进特性曲线，以及采用不同设计方案时的钻头性能进行了预测。
A lot of drilling techniques, acid stimulation and compressive fracturing techniques effectively protected and stimulated the performance of reservoir.
应用多项钻井工艺技术和酸化压裂改造技术有效地保护和改善储层性能。
Carbon-laydown occurs seriously in diesel engines on SCR electric drilling rigs during underload Performance, which affects the reliability and efficiency of the rigs.
SCR电驱动钻机的柴油发电机组所使用的柴油机，在低负荷运行时结碳严重，直接影响钻机的可靠性和经济性。
In the course of vocal music learning, it is necessary to learn the performance of vocal music and the drilling of mental activity, besides the vocal musical skill itself.
在声乐学习的过程中，除了声乐技能技巧的学习外，进行声乐的表演和心理训练也是很有必要的。
The simulation test and field use show that, the new separator has good performance in separating gas from drilling fluid, it can meet the demand of underbalanced drilling.
经模拟试验和现场应用情况表明，研制的液气分离器脱气效果良好，能满足欠平衡钻井需要。
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。
The technological process and characteristics of T-type cemented carbide for rock drilling are described. and its performance & application are also presented.
介绍了T系列新型凿岩硬质合金的工艺过程与特点， 合金性能与使用效果。
The drilling frame is the main load-carrying part in horizontal directional drill, its strength and stiffness have great effect on the performance of the drill.
钻架是水平定向钻的主要承载部件，其强度和刚度对钻机能否正常工作影响很大。
So the research on the output performance of the air PDM is of great significance for the gas drilling during the horizontal well drilling.
因此，研究气体螺杆钻具在井下的输出性能对水平井气体钻井有着非常重要的意义。
YZX127 hydro hammer used for full face drilling is described with its structural characteristics, performance parameters and laboratory test results as well as the application prospects introduced.
介绍了用于全面钻进的YZX127型液动潜孔锤的结构特点、性能参数、室内岩样实钻试验效果，展望了其广阔的应用前景。
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。
Resulted that use drilling core sample in the rutting test, can be used to detect the site asphalt pavement anti-rutting performance.
表明通过采用现场钻取的芯样试件做车辙试验来检测沥青面层的抗车辙性能的想法是可行的。
The shop tests indicated that all the performance parameters of the valve can meet the design requirements and satisfy the need of whole-course underbalanced drilling.
试验结果表明该阀已达到设计要求，能够满足全过程欠平衡钻井的工艺要求。
Rigid connection between 6 and CNC high speed drilling center machine spindle system of machine spindle, the rigidity of bearing and gear performance and the spindle and the handle.
cnc高速钻攻中心机器的主轴系统等机器主轴自身的刚性、轴承及齿轮的性能以及主轴和刀柄之间的连接刚性。
It is significant to improve the hydraulic system for better performance of drilling rig and the higher ratio of finishing gas hole.
提高全液压坑道钻机液压系统的技术水平，对于改善钻机整机性能及提高瓦斯抽采孔的成孔率具有重要意义。
The detecting speed is high, the performance is good and the operation is convenient; meanwhile, the requirement to field condition is low and the drilling rod does not need cleaning.
检测速度快，性能好、操作方便，对现场条件要求低，不需要对钻杆进行任何清理。
The perfect performance of the DBS drilling rig extends life of drill bit, enhances drilling speed and makes the drilling work more secure and scientific.
DBS钻机性能优良，能延长钻头使用寿命，提高机械钻速，并使钻井更安全、科学。
The generator for drilling rig should have its special performance because of the particularity of the load for drilling rig.
由于钻机负载的特殊性，要求钻机用发电机也具有自己独特的性能特点。
Research on Starch glycerine ether: the synthesis methods of Starch glycerine ether have been studied, and tentatively tested its performance as oil drilling fluid loss additive.
本文研究了以淀粉为原料合成的两种改性淀粉——淀粉甘油醚和阳离子淀粉的合成以及阳离子淀粉的应用性能。
Research on Starch glycerine ether: the synthesis methods of Starch glycerine ether have been studied, and tentatively tested its performance as oil drilling fluid loss additive.
本文研究了以淀粉为原料合成的两种改性淀粉——淀粉甘油醚和阳离子淀粉的合成以及阳离子淀粉的应用性能。
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