rate of penetration

用法例句

Simulation of penetration rate of air percussion drilling bit;

冲旋钻井机械钻速仿真研究

Experimental investigation in transmission ratio and penetration rate of cone bits;

81／2XHP2S—1和81／2HP2型牙轮钻头传动比及机械钻速的试验研究

It has long been held that the penetration rate of PDC bits is lower than roller bits during air drilling.

长期以来人们一直认为,在气体钻井中PDC钻头机械钻速没有牙轮钻头高,而且气体散热能力差,易损坏PDC钻头的复合片而使钻头早期失效,因此,在气体钻井中绝大多数使用牙轮钻头。

In view of many problems faced by drilling in the lower stratum in Xujiaweizi region, such as complex geologic structures, high grade value of rock drillability, low drilling rate, slow footage, and long drilling cycle, it is urgent to correctly predict the grade value of rock drillability which will provide powerful references for a better drilling plan in reasonable way.

针对徐家围子地区下部地层的复杂情况,岩石可钻性级值较高,钻井机械钻速低、进尺慢和钻井周期长的问题,迫切需要准确预测徐家围子地区下部地层的岩石可钻性级值,为科学制定钻井计划提供有力依据。

Although the drilling rate is related to the structure of the bit, property of the drilling fluid, drilling parameter as well as make-up of string and so on, the theory and practice indicates that the formation factor is the main factor in affecting drilling rate, which not only affects drilling rate directly, but also restrains the influence of drilling parameter on drilling rate.

虽然钻井的机械钻速与钻头结构、钻井液性能、钻进参数和钻具组合等因素密切相关,但理论和实践表明,地层因素仍是影响钻速的最主要因素,它不仅直接影响钻速,而且也制约着钻井参数对钻速的影响。

The mechanical drilling rate relates closely to drilling bit structure,drilling fluid property,drilling parameters and drilling tool constitution,but according to theory and practice formation factor is still the one that impacts the drilling rate most.

钻井的机械钻速与钻头结构、钻井液性能、钻进参数和钻具组合等因素密切相关,但理论和实践表明,地层因素仍是影响钻速的最主要因素,它不仅直接影响钻速,而且也制约着钻井参数对钻速的影响。

There are many problems when drilling in the complex stratum formation in Xujiahe,Sichuan province,such as low rate of penetration,borehole collapse,high accident frequency,short bit life,and so on.

为了解决四川须家河组复杂地质条件下机械钻速慢、进尺少、井塌等事故发生率高等问题,在分析该地层岩层特性的基础上,针对龙17井岩样进行了岩石力学性能分析,并在此基础上开展了3种不同齿形与须家河组地层特性岩石接触的有限元仿真研究,得到了各齿形压入速度、压入深度和破碎体积随时间的变化曲线,为须家河地层钻头的设计提供了理论依据。

The Analysis and Countermeasures to the Influence Factor of ROP while Sliding Drilling;

滑动钻进机械钻速影响因素分析及对策

THE ROP ANALYSIS OF 12(1/4) IN. HOLE SECTION DRILLING WITH MUD IN LONGGANG DISTRICT

龙岗地区12(1/4)英寸泥浆钻进井段机械钻速分析

A Study on the Theory and Technology of Drilling Fluids to Increase ROP.

提高机械钻速的钻井液理论与技术研究

5.9 The penetration rate (ROP) has been 6.18 meters per hour.

机械钻速为6.18米/小时。

A Study on the Theory and Technology of Drilling Fluids to Increase ROP.

提高机械钻速的钻井液理论与技术研究

IMPROVING THE RATE WHILE DRILLING DEEP,OR ULTRA DEEP WELL IN THE COMPLEX GEOLOGICAL STRUCTURE OF EAST SICHUAN

提高川东复杂地质深井超深井机械钻速的研究

THE ROP ANALYSIS OF 12(1/4) IN. HOLE SECTION DRILLING WITH MUD IN LONGGANG DISTRICT

龙岗地区12(1/4)英寸泥浆钻进井段机械钻速分析

It sets good records on drilling cycle, net drilling time and average ROP in the same kind of horizontal wells.

该井的完成 ,创同类型水平井钻井周期、纯钻时间、平均机械钻速的国内好成绩。

Analysis of Geothermal Condition in the Xiangshan-region of Beijing and Investigation of Relation between Stratum and Penetration Rate;

北京香山地区地热条件分析及机械钻速与地层关系研究

The gas drilling technology is increasingly applied these days due to its high ROP, effective prevention of the cave-in of water-sensitive shales and the capability to eliminate lost circulations.

气体钻井由于其机械钻速快,能有效防止水敏性泥页岩坍塌,杜绝井漏。

engineering boring and drilling devices

工程钻探和掘进机械

Research on the Drill Pipe Transportation Manipulator of Horizontal Directional Driller and the Control System

水平定向钻机钻杆输送机械手及控制系统研究

worm-type mechanical hand-feed drill

蜗杆式机械手动推进钻机

The design and application of mechanical cast-in place pile construction aiquille and pile casting

机械钻孔灌注桩施工钻头及护筒的设计与应用

multiple boring machine [for working metal]

钻探或开凿机械[自动推进的]

Mechanical properties of fasteners--Self-drilling tapping screws

GB/T3098.11-1995紧固件机械性能自钻自攻螺钉

Properties Research on the Hydraulic Tools of the New Type of Water-saving Drilling Technology;

新型节水钻探技术水力机械特性研究

Kinematical analysis and modeling of drilling manipulator in rock drilling machine

凿岩钻车机械臂的运动学分析与建模

mechanical stroboscope

机械示速器机械频闪观测器

(mechanics) the rate of change of velocity.

（机械学）周转变化的速率。

We are mechanizing rapidly.

我们正在迅速机械化.