游梁式抽油机游梁平衡重计算新模型

岑学齐; 吴晓东; 王磊; 郑磊; 葛磊

doi:10.11911/syztjs.201602014

游梁式抽油机游梁平衡重计算新模型

石油工程教育部重点实验室(中国石油大学(北京)), 北京 102249

详细信息

作者简介:
岑学齐(1985-),男,湖北黄冈人,2009年毕业于长江大学石油工程专业,2012年获中国石油大学(北京)油气田开发工程专业硕士学位,在读博士研究生,主要从事采油工程与理论技术方面的研究。E-mailcenxueqi2005@163.com。

中图分类号: TE254
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- 文章访问数: 2835
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出版历程
- 收稿日期: 2015-03-23
- 修回日期: 2016-01-31
- 刊出日期: 1899-12-31

A New Model for Calculating the Ideal Beam Counterbalance Weight for a Pumping Unit

Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum(Beijing), Beijing, 102249, China

摘要

摘要: 为了精确计算游梁式抽油机游梁平衡重的调整量,保障游梁式抽油机安全节能运行,需要对游梁式抽油机的调平衡模型进行研究。分析了游梁式抽油机急回运动特性,得出了抽油机上下冲程所用时间可能不相等的结论,并建立了游梁平衡抽油机上下冲程电机平均输出功率的计算公式。在此基础上,依据抽油机上下冲程电机所做功相等的平衡准则,利用平衡重平均功率变化与电机功率变化的关系,推导出了功率曲线法游梁平衡重计算新模型。实例计算表明:应用新模型对平衡重进行调整后,上下冲程电机做功差值很小,更能满足上下冲程电机做功相等的平衡准则要求;抽油机上冲程运行时间越长,平衡重调整量越大,而下冲程运行时间越长,平衡重调整量越小;当上下冲程运行时间接近时,新模型和简化模型计算结果接近。这表明,对于上下冲程运行时间不相等的游梁式抽油机,利用功率曲线法游梁平衡重计算新模型调整平衡重,抽油机平衡状况更佳。
- 游梁式抽油机 /
- 游梁平衡重 /
- 输出功率 /
- 数学模型
Abstract: In order to calculate the beam counterbalance adjustment weight accurately and ensure the safe and energy-efficient operation of beam pumping units, it is necessary to conduct research on the beam counterbalance weight adjustment model for beam pumping units. This paper presents the results of an analysis of the quick-return characteristics of beam pumping units. Results indicated that the running time of upstroke was not equal to that of down stroke. Further, the calculation formula for the average output power both in upstroke and downstroke of beam-balanced pumping units were proposed. Then, according to the balance principle of maintaining the equality of motor powers during upstroke and downstroke, a new calculation model for beam counterbalance weight of beam-balanced pumping units was derived by using the relationship between the counterbalance weight’s average power change and the motor’s average power change. It was shown from the case calculation that the difference of motor powers between upstroke and downstroke was quite narrow and the balance principle of the equality of motor powers during upstroke and downstroke could be more effectively satisfied when the counterbalance weight was adjusted by means of the new model. The longer the upstroke (downstroke) ran, the larger (smaller) the adjustment on the beam counterbalance weight. When the running time of upstroke and downstroke was almost equal, the new model and simplified model produced similar results. The results suggest that the beam pumping units whose upstroke running time was not equal to downstroke running time could be better balanced when the counterbalance weight was adjusted by means of the new power curve method-derived calculation model of beam counterbalance weight.
- beam pumping unit /
- beam counterbalance weight /
- output power /
- mathematical model

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参考文献(21)

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文章访问数: 2835
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游梁式抽油机游梁平衡重计算新模型

作者简介: 岑学齐(1985-),男,湖北黄冈人,2009年毕业于长江大学石油工程专业,2012年获中国石油大学(北京)油气田开发工程专业硕士学位,在读博士研究生,主要从事采油工程与理论技术方面的研究。E-mailcenxueqi2005@163.com。

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A New Model for Calculating the Ideal Beam Counterbalance Weight for a Pumping Unit

期刊类型引用(4)

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出版历程

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作者简介:
岑学齐(1985-),男,湖北黄冈人,2009年毕业于长江大学石油工程专业,2012年获中国石油大学(北京)油气田开发工程专业硕士学位,在读博士研究生,主要从事采油工程与理论技术方面的研究。E-mailcenxueqi2005@163.com。