摘要
低渗透油藏是指渗透率较低的油藏,是一个相对的概念,世界上没有统一固定的标准和界限,其根据不同国家、不同时期的资源状况和技术经济条件而划定。通过对我国低渗透油藏地质特征和储层特征的分析,找出其指示曲线的变化规律。结合长庆油田的某注水井的测井资料,利用Origin软件进行拟合分析,画出其指示曲线,求取其吸水指数。通过对比理论分析与实例分析的结果,提出改善低渗透油藏吸水指数的措施,为相关低渗透油藏注水开发生产提供指导。
Low permeability reservoir is a relative concept, there is no uniform standard and fixed boundary in the world, and it is often divided according to resource situation and technical-economic condition of different countries at different period. In this article, through analysis of geological characteristics and reservoir characteristics of low permeability reservoirs in China, the change law of indicative curves was found out. Combined with logging data of a water injection well in Changqing oilfield, Origin software was used to carry out fitting analysis, the indicative curve was drawn, the water injectivity index was calculated. By comparing theoretical analysis and example analysis results, measures to improve the water injectivity index of low permeability reservoirs were put forward, which can provide the guidance to waterflooding development of low permeability reservoirs.
出处
《辽宁化工》
CAS
2013年第4期414-415,418,共3页
Liaoning Chemical Industry
关键词
低渗透
吸水指数
启动压力
注水开发
low permeability
water injectivity index
starting pressure
water injection development
