This contribution addresses an experimental study on the poroelastic behavior of a water-saturated limestone. Samples come from Sarvak limestone, a major hydrocarbon-producing reservoir in Iran. Three back-saturated intact specimens were subjected to hydrostatic compression with different boundary pressure conditions. A coherent workflow from testing to data interpretation was established to efficiently deal with possible sources of uncertainty and provide accurate results. Obtained results revealed that drained and undrained bulk moduli, as well as the Biot and Skempton coefficients, strongly depend on the applied Terzaghi effective stress. Conversely, calculated values for the unjacketed solid modulus \( {K}_s^{\prime } \) were found to be constant in the range of applied stresses. Variations of the poroelastic moduli with the effective stress were modeled and used to extract depth-dependent poroelastic properties of the studied lithotype along a well. Besides, evaluated poroelastic moduli were utilized to verify the linear theory of poroelasticity. The indirectly calculated unjacketed pore modulus \( {K}_s^{\prime \prime } \) appeared to be highly variable with changes in the effective stress and possesses even negative values when the Skempton coefficient is lower than a critical value. A comparison between unjacketed bulk moduli and the bulk deformation modulus of the main mineral constituents K_s also disclosed that they are basically uncorrelated, and the assumption of ideal porous rock, \( {K}_s^{\prime \prime }={K}_s^{\prime }={K}_s \), does not hold in general for the examined rock samples. Nevertheless, consideration of the ideality assumption in the theory of poroelasticity may result in reliable estimates for the Skempton coefficient in certain circumstances, particularly at high effective stresses.

该贡献致力于对水饱和石灰石的孔隙弹性行为进行的实验研究。样品来自伊朗主要的油气生产储层萨尔瓦克（Sarvak）石灰石。对三个背饱和的完整样本在不同的边界压力条件下进行了静水压缩。建立了从测试到数据解释的连贯工作流程，以有效处理可能的不确定性来源并提供准确的结果。获得的结果表明，排水和不排水的体积模量以及Biot和Skempton系数在很大程度上取决于所施加的Terzaghi有效应力。相反，无夹套固体模量\（{K} _s ^ {\ prime} \）的计算值被发现在施加应力范围内是恒定的。建模了具有有效应力的多孔弹性模量的变化，并将其用于沿井提取受研究岩石类型的深度相关的多孔弹性特性。此外，利用评价的孔隙弹性模量验证了孔隙弹性的线性理论。间接计算的无夹套孔模量\（{K} _s ^ {\ prime \ prime} \）随有效应力的变化而变化很大，并且当Skempton系数低于临界值时甚至具有负值。未夹套的主体模量与主要矿物成分K _s的主体变形模量之间的比较还公开了它们基本上是不相关的，并且理想多孔岩石的假设\（{K} _s ^ {\ prime \ prime} = {K} _s ^ {\ prime} = {K} _s \）不成立通常用于检查的岩石样品。然而，在多孔弹性理论中考虑理想假设可能会在某些情况下，特别是在高有效应力下，得出关于Skempton系数的可靠估计。