能谱水流测井技术的研究和推广

大庆油田三次采油生产需要定量测量注入井和产出井液体的垂直流动。能谱水流测井仪是一种可以穿透钢管测量井筒中水流动速度的测井方法。通过刻度建立了清水的实际流速和测量流速关系。推导了描述能谱水流测井数学模型，剔除了引进软件中计算水流速度不正确的部分，建立了一套能谱水流测井解释方法。在测量的24口井中，能谱水流测井仪在低排量的配注井中准确地测量出流量，在聚合物注入井中实现了厚层细分，展示了能谱水流测井仪的能力，为油田的开发提供了基础数据。

Researches on Spectra Water Flow Logging Technology and Its Application

It is necessary to quantitatively measure vertical flow velocity of liquid in injection & production wells during the production of tertiary oil recovery in Daqing Oilfield. Spectra flow log tool helps us measure water-flow velocity behind and in wellbore casing through steel tube. Through the tool scale we built a relation between real water flow velocity and measured velocity. We derived mathematics model of spectra flow log. On the basis of scale data we eliminated the wrong parts in English specification and developed an interpreting method of spectra flow log.Log applications in 24 wells show that the tool is able to provide accurate flow rate in injection proration wells with low displacement, and realize fine zonation of thick beds, which exhibits its availability and provides basic log data for oilfield development.