基于地震资料的三种岩性流体预测方法对比分析

利用地震资料识别储层流体是储层预测的一项重要内容,对储层流体的识别是通过流体识别因子来实现的.首先引入三种流体识别因子并介绍其预测流体的方法原理,在此基础上以湿砂岩和含气砂岩为例,对比分析了不同流体识别因子对流体的敏感度,然后通过一个具体实例进一步验证了不同方法的特点.分析结果表明,第三种方法对流体的敏感度最高,能更准确地表征岩石孔隙中流体的性质.

Comparison and analysis of three fluid identification technologies based on seismic data

The fluid identification is an important content of reservoir prediction by using seismic data.The identification of reservoir fluid is completed by fluid identification factors. First of all, this paper proposes three fluid identification factors and analyzes the basic principles of fluid prediction technologies. Taking an example of wet sandstone and gas sandstone, the paper compares the sensitivity of fluid identification factors to different fluids. In addition, the paper illustrates characters of different technologies by means of a true example. The result shows that the third technology is highy sensitive to fluid and it can demonstrate property of fluid in rock pore.