基于模糊数学的有杆泵采油系统能耗评价与诊断方法

摘要

The traditional rod pumping unit with high share and low efficiency is still dominant in the energy consumption of oilfield,thus,the accurate evaluation of rod pumping unit energy consumption is significance to guide oilfield energy saving. Based on fuzzy mathematic theory and combined with the related standard,evaluation index system of energy consumption is established.Then,rod pumping unit energy consumption fuzzy evaluation model is set up by calculating index weight and membership function.The well of Xinjiang Oilfield is chosen for example analysis.The results show that the motor is not match and out of balance.The field specialist shows that the valuation model is comprehensive and accurate.%有杆泵采油系统在我国占有率高，但系统效率偏低，在油田能耗中占主导地位，因此，准确评价有杆泵采油系统能耗对油田节能改造有重要的指导作用。基于模糊数学理论，结合相关国家、行业标准，建立了全面的能耗评价指标体系，并应用科学方法计算指标权重及隶属度函数，最终建立有杆泵采油系统能耗评价模型。对新疆油田某系统进行实例分析，评价结果表明该系统电机匹配不合理、平衡度差，能耗等级为中，经油田现场确认，评价结果全面、诊断结果准确。