The calculation method of primary wave and second wave speed were studied when the oil saturation and effective pressure of unconsolidated sandstone reservoir with high porosity in X Oilfield changed.

• 研究了X油田高孔低胶结砂岩储层在含油饱和度和压力变化时纵、横波速度计算方法,并将计算数据与实际测井资料进行了对比。