1、

the problem of sucker rod string lagging in oil slant hole has seriously restricted normal production.

稠油斜直井抽油杆柱滞后的问题严重制约正常生产.

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2、

Studies on heat transfer calculation and thermal design on gravity heat pipe sucker rod string are carried out, and the method of heat transfer calculation for gravity pipe made from hollow sucker rod is put forward.

进行了重力热管式抽油杆柱传热计算和热工设计研究,提出了由空心抽油杆制成的重力热管的传热计算方法。

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3、

The visual setting of centralizer and the friction simulation of sucker rod string in directional well

定向井有杆抽油系统扶正器可视化设置及仿真

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5、

the static weight of the sucker rod string minus the maximum downward inertial force during the pumping cycle on a beam pumping unit.

在游梁式抽油机抽油循环期间,抽油杆柱的静止重量减去最大向下惯性力。

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6、

design of the sucker rod string

抽油杆柱设计?

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7、

application of centralizers clamped on sucker rod string

卡装式抽油杆扶正器的使用

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8、

Prediction of serious abrasion position and mechanism of uneven abrasion between sucker rod string and tubing

抽油杆柱与油管偏磨机理及偏磨点位置预测光子嫩肤术的作用机制

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9、

the problem of sucker rod string lagging in heavy oil slant hole has seriously restricted normal production.

稠油斜直井抽油杆柱滞后的问题严重制约正常生产。

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10、

reasons of sucker rod string lagging in heavy oil slant hole and solving method

稠油斜直井抽油杆柱滞后原因及解决途径

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11、

Force measure and analysis on sucker rod string in off-center wear well

偏磨油井抽油杆受力实测分析

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12、

the horsehead is used to insure that the pull on the sucker rod string is vertical.

驴头用来确保抽油杆柱沿垂直方向被提拉。

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13、
14、

optimization and application of flexible sucker rod string

柔性抽油杆柱的优化设计及应用

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15、

method of finite element optimized design of sucker rod string in directional wells

定向井抽油杆柱有限元优化设计方法

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16、

study on partial abrasion protector for sucker rod string

抽油杆柱防偏磨器的研究

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17、

longitudinal vibration characteristic and resonance condition of sucker rod string

抽油杆柱的纵向振动特性与共振条件

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18、

the frictional force calculation and the centralizer distribution design of sucker rod string in directional wells

定向井中抽油杆柱的摩擦力计算和扶正器分布设计

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19、

dynamic model of rotary sucker rod string and its finite difference equation

旋转级次抽油杆柱动力学模型及其差分方程

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20、

influence factor analysis of performance parameters for the sucker rod string system

影响有杆抽油系统性能参数的因素分析

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