Drilling rate should be based on the current changes and timely adjust.
钻进速度应根据电流变化及时调整。
Water jet flow is one of the decisive factors for drilling rate during rock bit drilling.
在牙轮钻头的钻进中，水射流是钻进速度快慢的决定因素之一。
Oilfield practices show that this technology can improve drilling rate and shorten well construction period.
现场实践表明，这种导向技术可以较大幅度地提高钻井效益，缩短建井周期。
The paper presents an effective way to predict formation pore pressure at wellsite-normalized drilling rate.
该文介绍了一种现场预测地层孔隙压力的有效方法NDR标准化钻速法。
In Yanchang oilfield, serious lost circulation often occur during drilling in Panlong and Zichang areas, directly affect drilling rate.
延长油矿管理局在蟠龙、子长等主生产区经常遇到严重漏失井，直接影响了钻井速度。
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。
The rock drilling rate, service life and tungsten carbide toothavailability of the series of bits are obviously better than those of chip and button type bits.
该系列钎具凿岩速度、寿命和硬质合金片齿有效利用率均显著优于片状和球齿钎具。
Ultra-high pressure water jet assisted mechanical drilling is known as one of the advanced and promising technology to increase drilling rate for deep oil and gas wells.
超高压射流辅助机械破岩钻井是提高深井钻井速度的一项前沿技术，关键技术包括井下增压器、超高压射流辅助破岩机理和钻头、超高压射流钻井参数和工艺等。
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.
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。
Using this model, using pattern recognition method can be carried out on the work area of other pending drilling bit selection, to improve the drilling rate when drilling to reduce drilling risk.
应用该模型，采用模式识别法可对工区其它待钻井进行钻头推选，从而提高待钻井的钻井速度，降低钻井风险。
The good news: Production of oil and gas jumped 7%, thanks in part to a 57% success rate on its exploratory drilling.
好消息是：由于勘探钻井成功率达57%，雪佛龙的石油与天然气产量增加了7%。
For example, in 2009, Chevron's (CVX, news, MSGS) drilling failure rate climbed to 35%.
比如2009年，雪佛龙公司废井率攀升到35%。
Bit is the tool of crash rock and rate of drilling is deep related with type of bit.
钻头是直接破碎井底岩石的工具，钻井速度的高低与钻头类型密切相关。
By drilling and fracturing the rock they believe they can start a process to increase the absorption rate by 100,000 times or more.
他们相信借助于钻孔和破碎岩石，他们可以创造一个把二氧化碳吸收率提高100000倍或更多的进程。
Drilling cuttings dispersion is controlled and the penetration rate is improved because of the better performance of the solid control equipment.
能抑制钻屑分散，有利于发挥固控设备效率和提高钻井速度；
According to the theory of drilling hydraulics, prediction model for mud pump was established on the basis of ensuring minimum flow rate.
根据钻井水力学理论，在各井段最小排量确定的基础上，建立了泥浆泵泵压、泵功率预测模型。
PDC bit have advantages of high penetrate rate, long bit life which saving tripping times so that the application of PDC bit can improve drilling efficiency.
PD C钻头具有钻进时间长、机械钻速高、起下钻次数少等特点，使用PD C钻头可大大提高钻井速度。
KQC series of air hammers used in gas drilling can solve certain problems, such as lower ROP(Rate of Penetration) and well deviation, which occurred in mud drilling in above medium hard formation.
在油田气体钻井中使用KQC系列空气锤，解决了泥浆钻井在中硬以上地层中钻速慢、易井斜的难题。
Comparing with common milling shoes, this new type of milling shoes has faster milling rate and longer life and has an important effect on reducing drilling costs.
与普通磨鞋相比，该磨鞋磨削速度快、使用寿命长，对降低钻井成本具有积极意义。
The rate of penetration of the negative pulse jet assisted drilling can increase from 0.7 to 3.0 in in-house simulation drilling compared to conventional drilling.
与常规钻井相比，室内模拟钻井试验条件下负压脉冲射流辅助钻井可以使钻速提高0.7-3.0倍。
UBD with CT can reduce the formation and pay zone damage, enhance the penetration rate, improve safe operation with high efficiency and drop drilling costs.
欠平衡连续油管钻井，可减少钻井过程中对地层和产层的损害，可提高机械钻速，安全高效率钻井，降低钻井成本。
This technology is important to seeking hidden oil and gas and improving drilling success rate and engineering geological research.
该技术对寻找隐蔽油气藏、提高钻探成功率和工程地质研究具有重要意义。
Mechanical rock breaking is the main function of modern rotary drilling. The purpose of jet aided mechanical rock breaking is to improve the penetration rate.
现代旋转钻井破碎岩石是以机械破岩为主导方式，射流辅助机械破岩的目的是提高机械钻速。
The rooting rate of test-tube plantlets could be increased obviously by seedling step-drilling, auxin treatment, suitable medium and environment conditions, control of bacterium and fungi, etc.
通过提供过渡炼苗，生长素处理，适宜的介质与环境条件以及防止杂菌滋生等措施，可显著提高试管苗瓶外生根效率。
Cataclasite series; Rate of core recovery; Single Rotary and Double Tube core Barrel, Structure of drilling tool; drilling technology.
碎裂岩系；取芯率；双管单动钻具；钻具造型；钻探工艺。
The attainment rate is confirmed high by drilling Wells.
经钻井证实，具有很高的成功率。
By analyzing the results of the tests, a penetration rate mode is derivated. The mode could be modified upon field drilling conditions and casing programme.
通过对试验结果的统计分析，得到用声波时差表示的钻速模式，若用于现场预测钻速时，还须根据钻井条件和井身结构对钻速模式进行修正。
During drilling horizontal well, usually adopt geometry steerable drilling technology to increase the penetration rate of borehole track in oil reservoir.
在水平井钻井中，通常采用地质导向钻井技术来提高井眼轨迹在油层中的穿透率。
Real-time evaluating the stratum by the using LWD (Logging While Drilling) curve could ensure horizontal borehole extend effectively in the reservoir bed and improve rate of drilling.
利用LWD曲线实时评价地层，可以确保水平井井眼在储层中的有效延伸，提高钻遇率。
While drilling in the same formation with the same drilling parameters, the penetration rate of bits of the same degree of wear depends mainly on their cutting structures.
在地层、钻井参数和钻头新度相同的情况下，钻头机械钻速的快慢主要取决于钻头齿面结构是否合理。
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