WTRPM

用法例句

To study the effect of the peculiar borehole created by reaming while drilling tools on the ratio of weight on bit(WOB),an experimental facility modeling the dynamic characteristic of the drill string with reaming while drilling tools was established based on the similarity principle.

模拟实验结果表明,随钻扩眼形成的阶梯式井底岩石要比领眼井底岩石更容易破碎,实际钻压分配比小于按照几何结构定义的钻压分配比。

Calculating Method and Effect on ROP of Ratio for WOB of RWD Tools

随钻扩眼工具钻压分配比的计算方法及对钻速的影响

Parameter Calculation and Comparative Analysis of Hydraulic Drilling Heave Compensation System

钻柱液压升沉补偿系统参数计算及比较分析

Parametric Bit Allocation Technique in Audio Compression Coding

音频压缩编码中的参数比特分配技术

The Analysis of Principle for Drill Frame of MG100 Hydraulic Roof Bolter

MG100全液压锚杆钻机钻架工作原理分析

Comparative analysis of drilling characteristics of dia- mond bits and roller bits

金刚石钻头与牙轮钻头钻井特点对比分析

Factor analysis of pressure used in managed pressure drilling on injected gas

充气控压钻井过程压力影响因素分析

Comparison and Analyses on Over-voltage and Insulation Coordination of UHV AC Transmission System Between China and Japan

中日特高压输电系统过电压和绝缘配合的比较分析

Medium Pressure Compressed Air Drilling Technique and Matched Equipment in Soft and Outburst Seam

松软突出煤层中风压空气钻进工艺及配套装备

Gray situation decision-making of mix ratio of steel fiber concrete in drilling shaft lining

钻井井壁钢纤维混凝土配合比的灰色局势决策

Analysis on Mining Released Gas Sources for Surface Borehole Drilling and Gas Drainage

地面钻井抽采采动卸压瓦斯来源分析

Pump Pressure Analysis of the 3NB2200 High Efficiency Well Drilling Pump

3NB2200型大功率钻井泵的泵压分析研究

The Analysis of the Drilling Technology of the Cylinder of the Hydraulic Breaker

液压破碎锤缸体钻削工艺的分析研究

Analysis of oil pollution and control measures for all hydraulic tunnel drilling rig

全液压坑道钻机液压系统污染分析与控制

The Study and Implement of Bit Allocation Algorithm in Wavelet-transform-based Digital Image Compression;

图像小波压缩编码的比特分配算法的研究与实现

Minimum Adaptive Bit Loading and Power Allocation Algorithm for Powerline Communication System

一种低压电力线通信系统自适应比特和功率分配最小化算法

INFLUENCE OF THE CHARACTERISTIC VALUE OF STIRRUP CONTENT IN BOUNDARY ELEMENTS ON ALLOWABLE AXIAL LOAD RATIO FOR CONCRETE STRUCTURAL WALLS

边缘约束构件配箍特征值对剪力墙轴压比限值影响的分析

easing the bit in

钻头轻压慢转钻进地层

The paper sequentially analyzed the starting-crack mechanism of hydraulic fracture bore which lies in coal delamination or lies between two coal delaminations or through many coal delaminations.

进而论文分析阐述了煤分层中钻孔、分层层面钻孔、以及穿层钻孔水力压裂的起裂机理。