丛式井液压排采系统协调控制建模及控制算法研究

Hydraulic Drainage Systems Coordinated Control Modeling and Control Algorithm for Cluster Wells

阐述了丛式井液压排采系统的工艺原理,分析了系统协调控制原理,构建了液压排采系统协调控制模型,提出了"可变优先级"驱动的协调控制方法及具体控制算法。为验证控制模型的正确性及控制算法的有效性,开发了仿真试验平台,试验平台可同时模拟5口丛式井液压排采系统的工艺流程,井下泵的运行过程及驱动控制过程与控制效果。仿真控制试验过程中能实时显示井下泵的运行状态、实际泵冲次、上下冲程时间、等待时间、模拟产量、控制优先级状态、控制阀状态、控制效率等主要工艺参数与控制参数。仿真控制试验结果表明,研究的控制算法具有良好的控制效果,能在地面站电机功率最小的前提下,确保每口井的配产要求。

In this paper,based on the ' one-stop multi-well ' hydraulic drainage systems,the coordination control model and control algorithms,which provide the mature technical guidance for the actual system of oilfields are researched.According to the process principle of the hydraulic drainage systems in cluster wells,the hydraulic drainage systems coordinated control model is built,and a variable priority-driven coordination control method and specific control algorithms are proposed.At the same time,a simulation platform is built.The results of the simulation control experiments show that the control algorithms,which have good control effects,can ensure the production requirements of the wells under the premise of the smallest ground station of motor power.