钻井过程中，近钻头处钻压、扭矩等钻井工程参数的随钻准确测量对安全、高效钻井是十分重要的。
The measurement of engineering parameters near the bit while drilling is of significant importance for the safety and efficiency in a drilling process.
当转速一定时，提高钻压不利于防斜打直。
实验结果表明，钻柱的纵向振动主要与转速和钻压有关。
The results show that longitudinal vibration of drill string is relative to rotary speed and weight on bit (WOB).
借助随机有限元方法和摄动方程初步分析了钻压波动对井眼轨迹的影响。
The effects of WOB fluctuation of drill string on the wellbore trajectory are analyzed by using stochastic finite element method and perturbation equation.
文中给出了钻压和转速对预弯曲动力学防斜打快钻具组合防斜力的影响规律。
Also, it is described the influence of bit pressure and rotate speed on anti-deviation force of the BHA of anti-deviation and fast penetration with pre-bending dynamics.
井下液力推进器的应用在一定程度上解决了钻压的施加问题，有利于提高钻进速度。
Application of downhole hydrodynamic propulsors solves the problem of exerting WOB, and are helpful to enhancing penetration rate.
钻压和转速是影响钻柱运动状态的两个主要因素，转速越高，越容易形成规则涡动；
The weight on bit and rotary speed are the main factors affecting the motion behavior of drill string. The higher the rotary speed is, the more easily the regular whirling will be formed.
定钻压、定转速条件下的单切削齿磨损速度试验结果表明，切削齿的线磨损模式是正确的。
On the basis of analyzing cutting mechanisms of cutters, a linear wearing speed model is established by researching the abrasive law of cutters.
与邻井常规钟摆钻具组合相比，这种钻具组合的钻压提高50%以上，机械钻速则提高120%。
The bit pressure of the BHA can increase more than 50% and the penetration rate can increase 120% comparing with the adjacent Wells using conventional pendulum drilling assembly.
分析试验结果得出，对于表面刮削破碎和体积破碎两种岩石破碎状态，钻压对扭矩的影响不一样。
The result of experiment shows that the effect of weight on bit on the torque is different for two different conditions of surface scraping rock break and volume break.
阐述了盘式刹车钻压优化自动送钻微机控制系统的设计思想和研制方法，给出了系统的软硬件设计方法。
Design idea and development method of a microcomputer control system for optimization WOB (weight on bit) automation bit feed of oil rig disc brake is discussed.
结果表明，在地层随机激励作用下，钻柱的振动将会引起钻压的波动，从而影响钻头的寿命及其钻进的速度。
The results show that the vibration of drilling strings will produce the fluctuation of weight on bits by random excitation, so the bit life and drilling rate are affected largely.
本文设计的物探钻具性能测试系统可完成对钻井过程中的空气压力、空气流量、转速、钻压、钻井深度等参数的测试。
The designed testing system in the paper can complete these tests as to air pressure, airflow rate, rotary speed, bit weight and drilling depth in the process of well drilling.
通过数理统计的方法，采用多元回归方程建立了压差卡钻压差临界值模型，此模型可以用于指导库车山前构造钻井施工。
By methods of mathematical statistics, we use the multiple regression equation to establish critical value model. The model can be used to guide the drilling in Kuqa's piedmont configuration.
为此，推导了钻具在自重作用下失稳的临界钻压及临界失稳长度公式，以便使公式更符合BHA自身的受力特点，提高计算准确性。
SO, the formulas of BHA's critical load and critical length were deduced and given by the hor to fit in with the BHA's loading features as well as to improve the calculating exactness.
地层可钻性与地层的压实程度和孔隙破裂程度有关，因此NDR可以反映地层孔隙压力的情况。
Formation drillability is related to formation compact degree and pore fracture degree, so NDR can reflect formation pore pressure state.
分析了因模具结构造成钻齿类合金压坯分层的原因，提出了改进模具结构设计的措施。
Analysis is made of the reasons of layering in compact of drill tooth alloys due to the die structures. Measures are taken to improve the die structures.
有可能利用积分rms这一参数来估价岩石压入硬度，并进一步预报岩石可钻性。
It is possible to use the parameter integrated RMS to assess rock indentation hardness and further to predict rock drillability.
山前构造地层孔隙压力复杂异常，特别是异常高压对于压差卡钻有很大的影响。
The Kuqa's pore pressure is very complicated and abnormal, especially the abnormally high pressure is great impact on differential pressure sticking.
应用CFD软件对涡轮钻具组的内流场进行了分析研究，重点讨论了模拟压降和扭矩。
The internal flow field of multi-turbine is studied by CFD software, and the simulated pressure drops and torques are discussed in this paper.
库车山前构造地质复杂，压差卡钻十分频繁，严重制约了钻井效率。
Kuqa's piedmont configuration is so complex that differential pressure sticking frequently occurs, which seriously restricting the drilling efficiency.
通过对沥青路面上钻取的非干燥试件进行风干和烘干试验，计算不同试验条件下心样的毛体积相对密度和压实度。
By the density test of blow-drying and stoving of non-aridity core sample from asphalt pavement, the bulk volume relative density and compactness can be calculated under different test conditions.
因此，可以通过钻较大直径的井眼或控制井以小产量生产来减小井筒压降损失的影响。
Therefore, we can reduce the effect of frictional loss in the wellbore by drilling well with larger diameter or producing with small production rate.
分析了因模具结构造成钻齿类合金压坯分层的原因，提出了改进模具结构设计的措施。
Analysis is made of the reasons of layering in compact of drill tooth alloys due to the die structures.
长螺旋钻管内泵压CFG桩施工技术在太原部分地区扰动敏感性土中应用时，常出现严重缩径质量问题。
Serious necking quality problems often appear when the CFG piles construction technology of long spiral drill pipe by pump pressure apply in some disturbed sensitive soil areas of Taiyuan.
司钻法，工程师法和边循坏边加重法是现场常用的压井方法。
Driller's, waiting-and-weighting and circulating-and-weighting techniques are commonly used kill well methods in oil fields.
这种独特的重复压裂联作技术对于保护废弃井也能够起到一定作用，可以防止当钻邻井时压裂对其产生的不利影响。
A Unique Consortium Refracturing also provides the added benefit of protecting the depleted Wells from the negative effects associated with fracture hits when drilling offset Wells.
通过对钻井过程中泵压、张力变化及机械钻速的分析，指出了超短半径侧钻水平井钻井技术存在的主要问题。
Based on the analysis of pump pressure, tension variation, and drilling speed, the existing problems of ultra-short radius side tracking horizontal well were presented.
本文论述了钻井泵载荷谱的编制方法、泵压对钻时的分布规律及载荷谱的应用。
This article is concerned with the study on the pump pressure distribution against drilling-time and the load pattern of slush pumps.
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。
Correctly recognizing the differential pressure sticking is of great significance to reduce complex accidents of borehole, increase drilling speed and reduce the drilling cost.
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