基于测井曲线特征识别砂砾岩沉积相

Method for Identifying Glutenite Sedimentary Facies Based on Logging Curve

砂砾岩体油藏是隐蔽油气藏的主要研究对象之一。砂砾岩普遍具有近源、快速堆积的特征,纵向上厚度变化大、岩相变化快,该特性为后期的储层预测带来了很大困难,尤其是砂砾岩沉积相的预测,存在很多难点。测井资料具有较高的纵向分辨率,包含了丰富的地下地质特征以及沉积环境信息,且具有成本低、作业周期短等经济高效的优点,因此利用测井曲线进行沉积相的相关研究是必不可少的手段之一。研究了基于测井曲线识别砂砾岩沉积相的方法,探讨了关于单井测井相的划分方式与标准,并结合地震地质资料,预测了沉积相的展布模式。

The glutenite reservoir was one of the main research objects of the subtle reservoirs.The glutenite generally had the characteristics of near source and rapid accumulation with great changes of longitudinal thickness and rapid changes of lithofacies.The characteristics induced great difficulties for reservoir prediction at the late stage,especially for the prediction of sedimentary facies ofglutenite.The logging data have high longitudinal resolution,which contained rich underground geological features and sedimentary environment information.In addition,it had the advantages of low cost and short operating period.Therefore,the correlation study of sedimentary facies with logging curve was one of the essential research methods.The identification method of glutenite facies based on logging curve is studied the division method and standard of single well logging phase are mainly discussed,and combined with seismic geological data the distribution pattern of sedimentary facies is predicted.