抽油杆

Although carbon fiber reinforced polymer composite coiled rod possess fine performance,in practical situations too has corking represent,economy know clearly lifting cost.

虽然碳纤维增强复合材料连续抽油杆具有优良的性能，在实际应用中也有很好的表现，节约了采油成本。

In contrast to the manufacturing enterprises which produce pump rod joints unceasingly developing and strengthening, the original mode of production shows a lower capacity, which leads to employees' high-intensity work, costliness of manufacturing and some other new problems.

随着抽油杆接箍生产企业的不断发展壮大，原有的生产方式呈现出生产能力低下，工人工作强度高，制造成本高昂等一些新的问题。

By using this method, it can evaluate the displacement and the load of any section at any time.

运用此方法，能计算出抽油杆柱在任意时刻，任意截面的位移和载荷。

A new energy-saving hydraulic pumping unit was designed, which had compound Cylinder-accumulator system, it can use the gravitational potential energy of the pumping unit.

研究出一种节能型液压抽油机，该液压抽油机采用复合缸--蓄能器液压系统，可以回收利用下行程时抽油杆释放出来的重力势能，具有显著的节能效果。

It adopts the variable step length scheme to evaluate at the connection point, and adopts the implicit difference scheme to evaluate in the same rod.

3运用在均质处采用隐式差分格式、节点处采用变步长的有限差分的混合方法求解抽油杆柱的波动方程。

Three order spline interpolation is applied to simulating sucker rod string axis. The problem of discontinuous interpolation caused by azimuth angle periodicity is solved.

应用三次样条插值法对抽油杆柱轴线进行模拟，发现并解决了现有方法中由于方位角周期性而引起的插值不连续问题。

The optimal design model of downhole pump depth and rod string assemblage is set up.

5建立下泵深度和抽油杆柱组合优化设计模型。

Zhenrong Company main products are: box-type furnace, furnace cars, Pit Carburizing Furnace, Pit Type Furnace, Pit nitriding furnace, electric oven blast, salt-bath furnace, mesh belt electric furnace, new coal-fired reverberatory furnace, rod heat treatment furnace, glass-lined equipment, resistance furnace and various industrial furnaces, and undertook a variety of industrial electric furnace repair and supply of various electric fittings.

振荣公司主要产品有：箱式炉、台车炉、井式渗碳炉、井式回火炉、井式氮化炉、电热鼓风干燥箱、盐浴炉、网带式电炉、新型燃煤反射炉、抽油杆热处理炉、搪玻璃设备电阻炉及各种工业用炉，并承接各种工业电炉的维修及供应各种电炉的配件。

Freet company locates in the key place of Oilfield , we have great advantage in research, customer service and so on aspects. We have been making great effort in developing external market in recent years, the sales ' amount of tubing, casing, and sucker rod is increasing in the international market year by year.

而且公司地处胜利油田腹地，应用研究、用户服务等方面有得天独厚的有力条件，多年来公司一直注重外部市场的开发工作，公司生产的油管、套管、抽油杆在国际市场的销售量逐年上升。

This unit consists ofelectric powerunit which changes from triphase into single-phase, heating cable, hollow rod and accessories.

这套装置由三相变单相供电装置、加热电缆、空心抽油杆和附件构成。

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。