吸收系数是进行储层描述和油气预测时的一个重要参数 ,它对岩性变化具有很高的灵敏性。结合层位解释结果从地震资料中提取该层位地层吸收系数的空间分布对于提高油藏描述及油气预测精度具有重要作用 ,并可与其它地震、测井和地质信息相结合直接用于圈定油气分布范围 ,估算储量-Absorption coefficient is an important parameter in the reservoir descr iption and hydrocarbon prediction. It is very sensitive to the variation of lithology. The spatial distribution of formation absorption coefficients which are estimated from horizon interpretation of seismic data plays an important　role in improving accuracy of reservoir descr iption and hydrocarbon prediction , and can be used to delineate hydrocarbon distribution and estimate reserves when combines withother seismic data , log, and geologic data.