装行同样的钻头和钻具组合。
本文介绍了几种常用防斜、纠斜钻具组合。
This paper introduces several common packed hole and well straightening assemblies.
钻井工艺参数及合理的钻具组合对井眼轨迹的控制至关重要。
Drilling technology parameter and rational combination of drilling tools is a key for controlling the borehole track controlling.
给出了带弯接头结构钻具组合的处理方法及扭矩的计算方法。
The methods to deal with bent sub and torque was also been given in this article.
钟摆钻具是一种常用的纠斜钻具组合，在钻井中应用极为广泛。
Pendulum assembly is a kind of BHA for hole straightening, which is applied widely in drilling practice.
探讨了小眼井井身结构、钻具组合、钻头选型、钻井参数等问题。
It discussed problems about wellbore structure, BHA, bit selection, drilling parameters and so on.
介绍了井底钻具组合纠偏技术及其在新疆YX - 1油井中的应用。
The borehole deviation correction technique with bottom hole assembly and its application in Xinjiang oil Well YX-1 were introduced.
钻具组合在井下所承受的应力水平是影响其疲劳寿命的一个关键因素。
The stress level is the key factor that affects the fatigue life of bottom hole assembly.
应用数值计算方法，分析了偏心钻头底部钻具组合的受力和变形特性。
The mechanical properties and the deformation characteristics of the BHA with the eccentric bit are analyzed.
下部钻具组合的具体方式将直接影响其所能承受临界失稳载荷的大小。
The critical buckling load is influenced by the pattern of bottom-hole assembly directly.
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.
本文分析了影响井眼曲率的主要因素，论述满眼防斜钻具组合设计的原则。
In this article, the principal factors affecting hole curvature are analysed, the principle of anti-deflecting packed hole assembly design is discussed.
钻具组合上有扶正器可使套管鞋反向定位以减少套管内钻具组合的侧向移动。
A stabilizer on the BHA positioned opposite the casing shoe reduces lateral motion of the assembly inside the casing.
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.
用螺杆钻具组合实施煤矿工程孔定向钻进时，钻头侧向力是其主要力学特性。
The operation performance of PDC bits with screw drill tool appplied now in oilfield were analyzed comprehensively.
在优化设计随钻扩眼组合和实际施工作业中，应充分重视钻具组合的强度问题。
So RWD string's strength should be fully attached importance to in optimization RWD designs and in the actual construction works.
建立了底部钻具组合动态分析的数值模型，推导了动态分析的有限元微分方程。
A numerical model of bottom-hole assembly was developed and the differential equations of finite element for its dynamic analysis were derived.
采用了MWD无线随钻仪器，倒装钻具组合，优化了钻井参数，实现了精确中靶。
MWD tools were used, and by using of reversed BHA and optimizing of drilling parameters, precise target hitting was achieved.
该程序通用性强，计算精度高，简单省时，适用于各种底部钻具组合的模拟计算。
The computer program developed according to analysis results has the advantages of universal application, higher accuracy, simplicity and time saving.
运用纵横弯曲连续梁理论和达朗伯原理，建立了偏轴钟摆钻具组合动力学分析模型。
A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the d.
常规的、不可变径的钻柱稳定器现在依然是井斜控制井底钻具组合中不可缺少的组件。
The ordinary non-adjustable stabilizer is still now an indispensable element of DHA(Down-Hole Assembly) for controlling well inclination.
计算和实例分析表明，该方法分析结果准确，可以有效地对钻具组合设计是否最优做出评价。
The practical application shows that the result is accurate and the method can tell whether the design of BHA is proper effectively.
采用静力分析的方法，建立了偏心钻头底部钻具组合的力学模型，并完成了对力学模型的求解。
A mechanical model of bottom hole assembly (BHA) with eccentric bits is established and the solution of this model was given by means of numerical method.
考虑下部钻具组合的弯曲效应和接触状态，运用间隙无法对下部钻具组合进行了受力变形计算。
The force and deformation of bottom hole assembly (BHA)are calculated by the gap-element method, in consideration for the bending effect and contact state of BHA.
经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；
The on-site tests of 5 wells showed that the stiffness of lower drill pipe assembly was increased to control deviation in the straight hole.
在计算底部钻具组合的受力和变形时，以前一般都是按弯矩为零的条件来确定其上切点的位置。
The tangency point of Bottom Hole Assembly is located at where the drill string just touches the wall of the borehole, and the contact force is zero here.
同时提出了利用几何造斜率设计导向钻具组合的方法，给出了相关的计算公式和一些设计实例。
The design method for steerable-motor assemblies using the geometric build Angle rate was proposed, and the correlative formulae and some design examples were given.
同时提出了利用几何造斜率设计导向钻具组合的方法，给出了相关的计算公式和一些设计实例。
The design method for steerable-motor assemblies using the geometric build Angle rate was proposed, and the correlative formulae and some design examples were given.
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