种获得含膏盐岩高台组地层层速度的方法

本发明提供了种获得含膏盐岩高台组地层层速度的方法。所述方法包括：根据式1求得所述含膏盐岩高台组地层的层速度，式1为：V＝(ΔT×V+(T-ΔT)×V)/T，其中，ΔT为无膏盐层时的基准时间厚度，V为无膏盐层时的基准层速度，V为含膏盐层的平均速度，T为高台组时间厚度。本发明的方法能够运用地震资料和地质统计方法确定含膏盐岩高台组地层的层速度。 The invention provides a method for obtaining interval speed of a gypsum salt rock-containing Gaotai formation The method comprises the following steps: the formation interval speed of a gypsum salt rock-containing Gaotai formation is obtained according to formula 1 which is V=([delta]T*V[reference]+(T-[delta]T)*V[gypsum])/T, wherein [delta]T is reference time thickness of a gypsum salt-free layer, V[reference] is reference layer speed of gypsum salt-free layer, V[gypsum] is average speed of a gypsum salt-containing layer, and T is time thickness of a Gaotai formation. Via the method disclosed in the invention, earthquake data and a geology statistical method can be used for determining the interval speed of the gypsum salt rock-containing Gaotai formation.