PDC bit是什么意思

The design of bit profile is an important part of PDC bit design, and it is always made by designers on the basis of their experience.

冠部设计是PDC钻头总体设计的一个重要组成部分，过去一直是凭经验设计，缺乏理论依据，随意性较大。

The seventh section of this paper simply recommends such nozzles'design programme on PDC bit.

并对这套PDC钻头水眼设计程序做一简要介绍。

Generally, for the stratum of median soft, the service life of the hard alloy bit is 20-30m, Smaller than PDC bit far.

一般情况下对于中软地层，硬质合金钻头的使用寿命为20~30m。远小于PDC钻头。

Developed study on the numerical bit , well bottom and the borehole face modeling method for PDC bit numerical experiment system.

开展了PDC钻头数值实验系统中数值钻头、数值井底以及数值井壁的建模方法研究。

Optimization results improved the mechanical behavior of PDC bit, and provided theory basis for design of PDC bit.

优化结果改善了PDC钻头的力学性能，且为PDC钻头的设计提供了理论依据。

It is the key to ensure that PDC bit has choiceness of the work performance to reasonably place cutting.

合理的布齿是保证PDC钻头有优良工作性能的关键。

The level of drilling technique unceasing improvement and PDC bit extensive use brought new problems for on-site mud logging operation.

钻井技术水平的不断提高和PDC钻头的广泛使用给现场录井作业带来了新问题。

The relationship model of cone bit drillability and PDC bit drillability is created.

建立了牙轮钻头可钻性与PDC钻头可钻性的相互关系模型。

Fast drilling experiments of PDC bit cooperating with screw drill tool in deep wells in Tuha Oilfield are introduced.

介绍了PDC钻头配合螺杆钻具在吐哈油田中深井中的快速钻进试验情况。

Through field testing, the PDC bit suited for Sulige gas field increased drilling speed and obtained good result.

通过现场试验，大幅度提高了苏里格气田的钻井速度，取得了显著的效果。

and set up the drillability models on roller bit and PDC bit.

并建立了牙轮钻头可钻性及PDC钻头可钻性模型。

Therefore, it is necessary to analyse and predict the strength state under the complicated moving condition of PDC bit.

因此，有必要对钻头在复杂工作条件下的受力进行分析、预测。

PDC bit is a new drilling tool which develops along with PDC composite material.

PDC钻头是随着PDC复合材料的发展而发展起来的一类新型钻井工具。

And reference for design of other PDC bit is provided through the study on geological PDC bit.

本文的研究为其它种类的地质PDC钻头的设计提供了一定得参考。

The detailed test about the whole process of small-caliber PDC bit is made by the thesis.

本论文对小口径PDC钻头的整个制作过程做了详细的试验研究。

The strength of PDC bit have a decisive influence to drilling effect.

PDC（聚晶金刚石复合片）钻头的强度对钻进效果有着决定性影响。

Application of Renovated PDC Bit for Reducing the General Drilling Cost

修复式PDC钻头降低钻井综合成本的应用

Numerical simulation and experimental checking for downhole flow field of a real PDC bit

实体PDC钻头流场数值模拟与实验验证

Study of PDC bit 's optimization matching with dynamical drilling tools and PDC bit drilling-in performance

PDC钻头与动力钻具的优化匹配和钻进特性研究

Development and Application of a New Type of PDC Bit Drilling in Cobble Interbed

用于砾石夹层钻进的新型PDC钻头的研制与使用

Numerical simulation and design of downhole flow field of a PDC bit with six blades and multiple interlayers

六刀翼多夹层PDC钻头井下流场的模拟与设计

Experimental Study of Interacting Laws of PDC Bit with Rock

PDC钻头与岩石相互作用规律试验研究

Design and application of the PDC bit suited for multi-interbedded formation

适合多夹层地层PDC钻头设计及应用

Equal-cutting-volume optimization design for a PDC bit

PDC钻头等切削体积布齿优化设计

Research of lithology identification method while drilling with PDC bit

PDC钻头条件下随钻岩性识别方法研究

Effect and Evaluation of Novel PDC Bit for Deflection Control and Fast Penetration

新型PDC钻头的防斜打快效果及评价

Development and Application of the Simplified PDC Bit

简易金刚石复合片钻头研制及应用

Visualization experiments of flow field of PDC bit and its erosion analysis

PDC钻头井下流动可视化实验研究与冲蚀分析

Trial study on promoting drilling speed using PDC bit and ultra-length motor

加长马达配PDC钻头快速钻井试验研究

Application of repair welding on surface hardening of steel body PDC bit

堆焊技术在钢体PDC钻头表面硬化中的应用

PDC bit

扩展信息

例句