关键词: 可行性研究, 定量解释, 地震层速度, 汤原凹陷, 含油、气砂层

Abstract: This paper introduced the basic concept of reliability and the related knowledge to study the reliability of seismic interval velocity data used to interpret pay zone thickness.Application results of seismic interval velocity data in the Tangyuan depression indicate that the reliability of an interpretation of 25m uncompacted shale,compacted shale,gasbearing layer and oil-bearing layer are respectively 76.1,61.0,43.4 and 25.5 when the seismic interval thickness is 100m and its depth of burial is 1,000m,and their reliability change to 75.4,67.9,56.8 and 29.3 when their depth of burial is 500m.