【摘要】 通过实验研究了大庆砂岩渗透率随静压力变化的规律。在等效毛管模型基础上，得到了砂岩的渗透率与压力之关系。运用最小二乘法，对实验数据进行了拟合，并确定了模型关系中的参数。结果表明，所建模型具有一定的合理性。更多还原

【Abstract】 The relationship between permeability of the Daqing sandstone and hydrostatic pressure is studied by means of experiment. Based on an ideal model, a formula a relating permeability under hydrostatic pressure with the permeability on surface and the pressure isobtained. After using the least square method,we simulate the experimental data and determine tbe parameter in the formula. The results show that the model established is reasonable.更多还原