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针对油田有杆抽油系统,利用Gibbs一维带阻尼的波动方程数学模型将悬点示功图转化为泵功图,并提出了两个估算油井产液量的数学模型.经实际数据验证表明,泵功图相对于悬点示功图向下平移了一段距离,消除了抽油杆柱对抽油泵工况分析的影响;两种产液量估算模型能较好的估算油井产液量;具有一定的适用性和可靠性.
Aiming at the sucker rod pumping system of oil field, the dynamical model of the suspension point is converted into the pump work diagram by Gibbs one-dimensional wave equation model with damping, and two mathematic models are established to estimate the liquid production of the oil well.According to the actual data, , The pump work is shifted downwards relative to the hanging point work diagram to eliminate the influence of the sucker rod column on the pump condition analysis. The two production volume estimation models can better estimate the oil well production volume. Has a certain applicability and reliability.