纵波、横波在不同的岩石中传播的速度不同,各种因素对纵横波速度的影响也不同,岩石中纵横波速度关系是地震勘探的基本问题。依据国内大庆油田、辽河油田、吐哈油田3个区块的全波测井数据,采用线性、二次曲线2种数学模型对比研究,得到3个区块纵横波速度之间的线性关系与二次曲线关系。分析表明,岩石中纵横波速度关系有地区性差异。 P-wave and S-wave propagate in different rocks at different speeds, and various factors have different effects on S-wave velocity. The relationship between P-wave velocity in rock is the basic issue of seismic exploration. According to the data of full-wave logging in Daqing Oilfield, Liaohe Oilfield and Tuha Oilfield, the linear and quadratic curve mathematical models are used to compare and study the linear relationship between P- and S- Curve relationship. Analysis shows that there is a regional difference in the relationship between P-wave velocity in rock.