钻具

DLS的钻具振动分析技术及应用

Drilling tool vibration analytical technology and application of DLS

φ110mm单动双管金刚石钻具技术改进后的使用效果

Operating result of improved double - tube swivel type diamond drilling tool

把动坐标迭代法应用于下部钻具组合（BHA）的非线性有限元分析。

Moving-coordinate reiterative method is used for non-linear finite analysis of BHA .

基于Agent的石油钻井ERP钻具需求计划系统研究

The Study on Drilling-instruments Requirements Planning System of Oil-drilling ERP Based on Agent

API钻具数字接头在我国推广应用情况调查分析

The Survey of the Use of API Drilling Digital Nipple in China

API钻具螺纹的缺点及改进措施

A Tentative Study of the Improvement on API Threads of Drilling Tools

航天飞机的气动问题涡轮钻具CAD系统研究

THE AERODYNAMIC PROBLEMS OF THE WINGED SPACE TRANSPORTATION SYSTEMS Computer Aided Analysis of Axial Gap of Turbodrill

研究发现，随着钻井液pH值的增大，钻具钢的腐蚀速率减小。

Results tested by polarization curves showed that the corrosion rate decreased with the increasing of pH value .

井下动力钻具用TC轴承接触问题的理论研究

Theoretical research of contact problem in TC bearing in down hole motor

钻具失效诱因及湿H2S环境危害探讨

Discuss of Effectiveness Lose Inducement and Damage to BHA in Wet H_2S Environment

为了保护钻具，决定配制高pH值且添加了缓蚀剂的稳定泡沫液进行空气泡沫钻井。

In defence of drilling tools , formulating high pH value and adding corrosion inhibitor stable foam proceeds air foam drilling .

螺杆钻具Tc轴承的研制

Development of Tc bearings for downhole drilling motors

使用设计的CAD可提供所需的参数及数据，有助于提高设计质量和缩短开发螺杆钻具的周期；

The given CAD software provides the required parameters and data and can optimize the design feature and speed up the operational development .

钻头及涡轮钻具轴承组件MoS2滑化处理研究

Study on bearing assembly smooth treatment by MoS_2 for rock bit or a turbodrill

应用动力钻具配合高效PDC钻头钻井技术，保证了井身质量和钻井速度；

Power drill tool and PDC bit are used to ensure wellbore quality and penetration rate ;

爆炸喷涂WC-Co涂层研究及在螺杆钻具中的应用

Investigation in WC-Co coating of detonation spraying and its application on screw drills

研究了江汉油田常用钻井液处理剂和pH值对钻具腐蚀的影响，评价了5种缓蚀剂的抗氧、抗温及抗复合盐性能。

The influence of mud additive and pH value on corrosion of drilling tools in this drilling fluid system are analysed . The properties of 5 corrosion inhibitors are evaluated .

预测下部钻具组合（BHA）的造斜能力对准确控制井眼轨迹十分重要。

Accurate prediction of BHA deflecting capacity is very important for precise well trajectory control .

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。

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

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 .

螺杆钻具的高转速可以为PDC钻头提高切削速度提供井下动力保障。

High rotate speeds of dynamical drilling tools can improve PDC bit 's cutting rates , and also can provide downhole motives .

应用CFD软件模拟Ф115mm涡轮钻具机械特性

CFD simulation of mechanical performance of turbodrill with diameter of 115 minimeter

Gilligan钻具组合特性分析与设计

Characteristic Analysis and Structural Design of Gilligan Bottom Hole Assembly

本文将弯曲井眼中的底部钻具组合（英文名称为BottomHoleAssembly，简称BHA）作为空间梁来处理，在考虑几何非线性因素的基础上，导出了相应的有限元切向刚度矩阵。

In this paper , Bottom Hole Assembly in a curved wellbore is treated as spatial elastic beam . On the basis of geometrically nonlinear strain analysis , tangent stiffness matrixes are deduced .

针对不同的土层和含水量，可以使用不同结构的BSS、AGS型旋挖钻具。

BSS and AGS auger-boring tools of different structures are selected to drill different soil and formation with different water contents .

KZ型单动双管取心钻具的研制与应用

Development and Application of KZ Single Rotary and Double Tube Core Barrel

PDC钻头+塔式钻具可有效地控制井斜，提高钻井效率。

Hole deviation can be effectively controlled and drilling efficiency can be improved by applying PDC bits and tapered inclining prevention drilling tools in air drilling .

考虑钻具实际服役条件，采用Forman疲劳寿命预测模型和Miner线性累积疲劳模型评估构件疲劳寿命。

The Forman fatigue life prediction model and Miner linear accumulative fatigue model are presented for the fatigue life prediction of BHA .

J-200B型冲击器是J系列潜孔钻具的新产品，能在各种岩石中穿凿直径200～220毫米的炮孔。

The J-200B drill hammer is a new product in J-series of down-the-hole drills . It can drill 200-200 m. m.

指出了现场使用的标准API钻具螺纹所存在的缺点，并针对这些缺点提出了相应的改进措施，即改进螺纹牙底形状和改变螺纹锥度配合。

The author explores the weak points of the API standard threads on drilling tools used in the field , and presents accordingly some measures for improvement that is , to modify the root form and the taper fit of the threads .