用单相关分析法快速预测储层敏感性

本文在收集薄片、铸体薄片、粒度、压汞、X射线衍射、扫描电镜、物性、敏感性流动实验等各种岩心分析资料的基础上,对影响敏感性的各种因素进行了单相关分析,提出用单相关系数加权的方法来实现储层敏感性预测,并应用此方法对西部某油田的资料进行了处理、分析。结果表明,速敏、水敏、盐敏、土酸敏和碱敏的预测结果与该油田的敏感性流动实验结果的符合率为80％左右,如果把基本正确的样品也包含在内,则符合率为90％左右。该方法相对神经网络、多元统计等方法的优点是物理意义明确,简单、实用。

Rapidly predicating the formation-sensitivity with analysing method of single correlation

On the basis of collecting flake, particle size, sensitivity , the core analysingdata and so on, the various factors affecting on sensitivity are singlely and corre-lately analysed. It is suggested that the coefficient weighted method of single correlation is used to predicate the formation sensitivity. This method is appli-cated to process and analyse the data of some oilfield in the west. The results show that the coincidence rate comparing the predication results of speed-sensitivity, water-sensitivity, salt-sensitivity, mud-acid-sensitivity and alkali-sensitivity with the flowrate testing results of sensitivity in this oilfield is 80% or so. The coincidence rate is 90% or so if the sample included in not very good sample. Comparing with the method of nerve network and multivariate statistics, this method is more clear physical significant,simple, practical.