基于物质平衡理论的油田节水量计算方法研究

Research of Computational Method for Water Saving Volume in Oilfields Based on Material Balance

针对单耗法油田节水量计算方法未全面考虑油田用水特点,不能真实、客观反映油田节水工作业绩的问题,根据油田新鲜水消耗特点,建立了基于物质平衡理论的油田注采模型,并根据标准规定的油田节水量定义,研究了"平衡法"节水量计算方法,用于衡量固定区块内注新鲜水水平和精细化注水的成效。该方法为业内首创,已对中国石油油气田企业节水量进行测算,结果表明,"平衡法"油田节水量计算方法能更加真实地反映油田节水成效,满足油田节水管理考核的需求。

The computational method for water conservation volume based on unit consumption method didn't take into account the characteristics of oilfield water consumption,so it can't truly and objectively reflect the performance of oilfield water conservation.In this paper,oilfield injection-production model is built,according to the characteristics of fresh water consumption in oilfields.The balance method of injection-production is researched based on the standard definition of oilfield water saving,which is used to measure the effects of fresh water injection level and refined water injection.The verification results show that the computational method for water conservation volume in oilfields based on material balance theory could truly and objectively reflect the performance of oilfield water conservation,and meet the demand of oilfield water-saving management assessment.