建立下泵深度和抽油杆柱组合优化设计模型。
The optimal design model of downhole pump depth and rod string assemblage is set up.
抽油杆的疲劳破坏是抽油杆柱的主要失效形式之一。
油管屈曲造成套管、油管、抽油杆柱之间的多重磨损。
Finally, the buckled string will make multiple wear on casing, tubing and rod string.
经对抽油杆柱的井下受力分析，建立了光杆功率数学模型；
Through analyses the force on the pumping rod, building-up the polish rod mathematical model.
在有杆抽油系统工作过程中，抽油杆柱的合理设计是非常重要的。
Reasonable rod pump string design is very important in the working course of rod pump system.
从振动力学的理论出发，对现行抽油杆柱的振动力学模型进行了系统分析。
Based on theory of vibration mechanics, this paper analyzes the vibration mechanics model of rod string systematically.
应用有限元法对辽河滩海油田大斜度定向井抽油杆柱受力进行了三维计算。
Using finite element analysis method, three-dimensional calculation is conducted for force summing on rod in high-inclination well of Liaohe tidal zone oilfield.
以抽油杆柱为研究对象，论述了斜直井游梁式抽油机冲程和冲次的计算方法。
Taking the rod string as the object of study, a method of computing pumping stroke and speed of walking beam pumping units for slant straight wells is also presented.
根据斜直井抽油杆柱工况特点，建立了斜直井抽油杆柱的一维有阻尼波动方程。
According to the operating mode of the rod string in slant straight Wells, the authors establish a one-dimensional damped wave equation for the rod string.
文章对抽油杆柱断脱的设计方法进行了详细的理论分析，指出了其中存在的问题。
The paper gives a detailed analysis of the design method causing rod string dropout and points out its inadequacies.
应用第四强度理论，求解杆柱在扭矩和轴向力条件下的复合应力，设计抽油杆柱。
Rod strings are designed by computing compound stress with the fourth strength energy on the condition of torque and axial force.
当抽油杆柱在上述一个或几个条件共同作用下达到偏磨临界条件时。杆管将产生偏磨。
When Wells run at one or some of the above states, and the practical down stroke axial load of the plunger is greater than the critical axial load, the wear of rod string and tubing will take place.
对现有抽油杆柱设计方法进行改进与补充，给出基于实际井眼轨迹的抽油杆柱设计模型。
This paper given an improvement and supplement to design methods of rod string in existence, established a rod string design model based on actual well path.
采用力学分析的方法，结合测井资料，由下到上计算了抽油杆柱的扶正器间距和轴向力。
The axial load and centralizer spacing from the bottom to the top are calculated by using the mechanical analysis method and the log data.
在对旋转抽油杆柱的扭转振动分析的基础上，给出了各阶扭转振动固有特性参数的计算式。
On the basis of the analysis of the twisting vibration of rotary sucher-rod string, a formula of calculating every harmonic vibration eigenfrequency is presented.
为抽油杆柱组合、扶正器、防脱器安放位置及数量设计提供了更加合理、完善的理论依据。
It provides a reasonably and completely theoretical basis for combination of rods, centralizer, assembling site and number of depart device.
针对水平井井眼具有一定曲率的特点，建立了抽油杆柱下部任意一点最小轴向力的计算方法。
In the light of characteristics that horizontal hole possesses a certain rate of curvature, the method of estimating minimum axial force at any point along a rod string is established.
液压油缸可单独使用，也可串联使用，它一端与机动式换向阀连接，另一端与抽油杆柱连接。
The hydraulic cylinder can be used alone or connected in series. One end of the hydraulic cylinder connects to the motor driven change valve, the other end connects to the rod string.
通过对螺杆泵采油系统进行分析，得到抽油杆柱力学模型，并对杆柱所承受载荷进行推导计算。
Analysis screw pump system, get the mechanical model of rod string, deduct and calculate undertaking load of rod string.
在计算排出口压力计算过程中，考虑了由于抽油杆柱旋转引起杆管环空气液两相流摩阻的影响。
To calculate discharge port pressure, this article considers the influence on frictional pressure drop in the gas and liquid two-phase flow between rod and tubing owing to rotation of rods.
采用力学分析的方法，结合井眼轨迹数据，由下到上逐跨计算了抽油杆柱的扶正器间距和轴向力。
The axial load and centralizer spacing from the bottom to the top are calculated by using the mechanical analysis method and the well trajectory data.
针对井口驱动螺杆泵抽油杆柱断脱频繁的问题，应用弹塑性理论分析了抽油杆柱在井中的受力状况。
In the light of the frequent breaking of the rod string in a surface driven screw pump well, the force condition of the string in the well is analyzed by means of the elastoplasticity theory.
根据求得的时域内抽油杆柱受力变形值以及与油管柱碰撞接触力，计算了抽油杆柱动强度和扶正器安放位置。
The dynamic strength of rod string and the mount position of centralizer were calculated, according to the acquired deformation of rod string and its impact contact force with tube in the time domain.
在某一给定条件下，对满足抽油杆柱强度要求的关系式进行了讨论，并绘制出了可校核抽油杆柱强度的线性关系图版。
Under a given condition, strength expressions of rod string is discussed and a linear diagram is derived which can be used to check the strength of rod string.
目前，大部分井下油水分离的旋流器由地面游梁式抽油机通过抽油杆柱提供能量，这样进入旋流器流量产生断续现象。
Nowadays, most of down-hole oil-water separating cyclones" energy are given by oil-pumps on the ground, which lead the flow rate of cyclone to be discontinuous."
目前，大部分井下油水分离的旋流器由地面游梁式抽油机通过抽油杆柱提供能量，这样进入旋流器流量产生断续现象。
Nowadays, most of down-hole oil-water separating cyclones" energy are given by oil-pumps on the ground, which lead the flow rate of cyclone to be discontinuous."
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