聚合物驱抽油机井参数优化设计研究

Abstract
Today, the rod pumping is the predominance mechanical recovery mode in world petroleum production. With oilfield development, to make the rod pumping system work with highly efficient and energy-saving in the polymer flooding, some producing parameters will change such as layer pressure, gas-oil ratio and water cut etc, which will induce the system uncoordinated work. So the low efficient sucker rod pumping well in polymer flooding must be optimizing designed by optimizing the pumping parameter and pumping unit-rod-pump combination.
Many problems has been put forward in polymer flooding wells than which in water flooding wells since polymer wells put into production in Daqing oil field. By analyzing systematic characteristic of pumping well, on the basis of nodal analysis of overall pumping well system, by researching inflow performance relationship, multiphase piping flow in wellbore, parametric properties of oil-gas-water, pumping parameter ,well track, complexity of suck rod string and sliding friction force for suck rod with tube, thus formulae is established for Sucker-Rod pumping, formation optimal design mathematical model suitable to optimizing design the suck-rod pumping system, design soft is compiled. Passing Calculated result is basically matched with that of actual well conditions.
Applying to the actual producing data of 20 well in Lamadian oil flied to check the mathematical model and the accuracy of program, the simulation calculation result is coincidence with the actual state. The software can well direct the work of oil field.

Key words: the polymer flooding; rod pumping system; the efficiency of suck-rod pumping system; optimizing design

1.1 研究聚合物抽油机井参数优化设计的意义 1
1.2 本文的主要研究内容 2

2.1 油井流入动态 3
2.2供采协调匹配 5
2.3泵挂深度设计 7
2.4合理泵径的确定 8
2.5抽油杆杆柱设计 9
2.6抽油机悬点载荷计算 11
2.7抽油机平衡、扭矩与功率计算 19
2.8系统效率的计算 26

3.1已知变量 28
3.2约束条件 28
3.3抽汲效率模型的建立 29
3.4能耗预测模型的建立 32
3.5投资优化模型的建立 33
3.6其他修正模型 33

4.1软件的流程结构 36
4.2软件开发及系统运行要求 36
4.3工程及模块介绍 37

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