摘要
从灰色反滤波的基本原理出发，设计出一个服从声波时差求“灰孔隙度”的灰色反滤波系统，滤除因探测系统、井眼、局部环境等因素引起的干扰，建立起声波时差与岩层孔限度之间的反演计算关系应用表明，用上述方法得到的孔隙度更接近实际孔限度值，并且突出了层孔隙度值的差异，从而提高了薄油层识别的水平.
This paper describes the design of a gray inverse filter system used for the calculation of the 'gray porosity' following the sonic moveout. Following the basic principle of the gray inverse filter, this system thus designed can be used to filter out various noises caused by the detection system, harehole, and local environment to establish the inverse calculation relationship between the sonic moveout and the stratum porosity. The application evidence shows that the porosity obtained by means of the calculation methed shown above is more approximate to the actual porosity, and more focused on the difference between the stratum porosity values, thus enhancing the identification of thin oil reservoirs.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第5期519-521,共3页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金项目!49874027
国土资源部矿产资源定量预测及勘查评价开放研究实验室资助
关键词
声波时差
灰孔隙度
灰色反滤波
储层
油层
sonic moveout, gray porosity, gray inverse filter, identification of thin oil reservoir
