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在正旋回砂砾岩储层中，采集８种不同岩性的典型样品，在五种含油（气）水饱和状态下油饱和（Ｓ＿ｏ＝１００％）、水饱和（Ｓ＿ｗ＝１００％）、气饱和（Ｓ＿ｇ＝１００％）、束缚水（Ｓ＿（ｗｉ））、残余油（Ｓ＿（ｏｒ））测试了不同有效覆盖压力（ΔＰ）下的纵横波速度Ｖ＿ｐ、Ｖ＿ｓ和力学参数（体积模模量Ｋ、扬氏模量Ｅ、切变模量μ、拉梅常数λ、泊松比ｖ和密度ρ）。通过分析表明：（１）弹性模量Ｅ、Ｋ、μ、λ随ΔＰ增加而增加，随ΔＰ变化在低压范围比高压范围更敏感；（２）同一油、气水饱和状态下，同一非均质单层的岩性变化范围控制了弹性模量一有效覆盖压力曲线族的宽度；（３）无论岩样的岩性、物性以及压力条件如何，弹性模量（Ｅ、Ｋ、μ、λ）和泊松比ｖ与饱和度均呈线性关系；（４）在同一非均质单层内，岩石的模理一压力变化曲线族随着含油、气、水饱和状态的不同具有明显的分带性；（５）同一非均质单层内，岩样的动态压缩系数与静态压缩系数之间存在很好的相关关系。
In the positive-gravelly conglomerate reservoirs, 8 typical samples with different lithologies were collected, oil saturation (S_o = 100%), water saturation (S_w = 100%) and gas saturation (S_g = 100%), irreducible water (S_ (wi)) and residual oil (S_ (or)) were tested for P-wave velocities V_p and V_s at different effective coverage pressures (ΔP) and mechanical parameters , Young’s modulus E, shear modulus μ, Lame’s constant λ, Poisson’s ratio v, and density ρ). The analysis shows that: (1) The elastic modulus E, K, μ, λ increases with the increase of ΔP, and changes with ΔP more sensitive than the high pressure range in the low pressure range; (2) In the same oil, gas and water saturation, (3) The elastic modulus (E, K, μ, λ) is independent of the lithology, physical properties and pressure conditions of the rock sample. And Poisson’s ratio v have a linear relationship with the saturation. (4) Within the same heterogeneous monolayer, the pressure-curve curves of the rock under the conditions of oil, gas and water saturation have obvious zonation ; (5) There is a good correlation between dynamic compressibility and static compressibility of rock samples in the same heterogeneous monolayer.