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抽油杆

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With the model, torque change in both the pump and pumping rod along the wellbore could be obtained.

利用该模型可获得井筒中任意部位及螺杆泵处抽油杆扭矩的变化情况。

This study provides theoretical basis for solving eccentrically worn sucker rod string and tubing and may guide field production.

该方法为解决抽油杆杆管偏磨提供了理论依据,对油田生产具有一定指导意义。

Adding hot waste water in hollow rod downhole can give full play to surfactant, then the oil can be lifted to surface after heating, deconcentrating and wetting.

由空心抽油杆向井下掺入热污水,充分发挥原油脱出水中所含的表面活性剂作用,对稠油加温、稀释、湿润,然后由抽油泵举升到地面。

During oil production, pumping rod is eccentric in the long oil tube, in which flow of the swabbed fluid can be regarded as an unsteady flow of second-order fl.

在采油过程中,由于油井较深的缘故,抽油杆在油管中是处于偏心位置的,可以把聚驱井抽汲液在井筒中的流动视为二阶流体在内管做轴向往复运动的偏心环空中的非定常流动。

The oil extraction rod is connects the pumping unit and the oil pump transmission device, Through reciprocal motion extraction petroleum.

抽油杆是连接抽油机和抽油泵的传动装置,通过往复运动抽取石油。

By analysising cost and output for low yield oil wells, in the paper, the method of flow switch is used to judge if the well bore has the oil flows, which change the traditional experienced method (touch the beam hangers temperature and look if it has the oil film) and the present automatic liquid level monitoring manner, and it is the closed-loop control and reduce the intensity of labour and the cost of the production. The hill-climbing mathematical method is considered as the most effective way.

论文中采用了流量开关的方法判断井口是否出油,打破了传统用经验判断(看抽油杆是否发热、是否附有油膜)的方法和现有的自动液位监测仪判断方法,形成了闭环控制,降低了劳动强度和减少了生产成本;并将数学方法上的瞎子爬山法用在了本优化控制系统中。

In order to solve above problems, a frequency conversion timing unit for screw pump well and an automatic control system were developed.

针对地面驱动螺杆泵抽油杆断、脱频繁及单井提液调整参数难以控制等问题,开发了螺杆泵井的变频调速装置及自动控制系统。

In order to design the rod string and analyze failure mechanism, the dynamics analysis on rod string of surface driving screw pump must be conducted.

地面驱动螺杆泵抽油杆柱动力学分析是杆柱设计、失效机理分析的关键技术。

Partial abrasion of rod string in screw pump well which is surface driven is the main reason that restricts its application, but the prevention method used presently cant solve the problem radically.

地面驱动螺杆泵井抽油杆的偏磨是制约螺杆泵应用的主要原因,目前采用的防治方法不能从根本上解决该问题。

Applying Visual Basic ,the paper make modes of buckling ,load calculating, rod designing , sinker bar and couplings designing to realize on computer. It provides effective means for analyzing sucker rod dynamic behavior and designing rod combination in casing production well.

利用VB把建立的屈曲分析、载荷计算、杆柱设计、加重杆和扶正器设计模型编制程序实现计算机计算,为套管采油井抽油杆柱的力学行为分析和设计提供有力工具。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?