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    • 7. 发明专利
    • Uncertainty reduction technique in pressure pulse collapse test
    • 压力测试中的不确定性降低技术
    • JP2014055500A
    • 2014-03-27
    • JP2013187289
    • 2013-09-10
    • Korea Institute Of Geoscience And Mineral Resourcesコリア インスティチュート オブ ジオサイエンス アンド ミネラル リソースズ
    • IN-SUN SONGKIM JUNG CHAN
    • E02D1/02
    • G01N15/08G01N15/0826
    • PROBLEM TO BE SOLVED: To provide an uncertainty reduction technique with which a water permeability coefficient of a rock sample and a specific storage coefficient in a pressure pulse collapse test can be known accurately.SOLUTION: In an uncertainty reduction technique in a pressure pulse collapse test, according to a pressure pulse collapse testing method, an axial pressure and a sealing pressure are applied to a rock sample, an upstream pond and a downstream pond are connected to the rock sample and in such a state, a pressure pulse from the outside is applied. From a graph of a target function indicating a water permeability coefficient and a specific storage coefficient obtained by using the pressure pulse collapse test method on a lateral axis and a longitudinal axis, a coordinate value indicating a minimum value of the contour line is read out. Based on the coordinate value, the water permeability coefficient and the specific storage coefficient of the rock sample are determined. The graph of the target function obtained by repeating the pressure pulse collapse test while changing a boundary condition is superimposed and displayed, thereby reducing uncertainty in the water permeability coefficient and the specific storage coefficient of the rock sample.
    • 要解决的问题:提供一种不确定度降低技术,可以准确知道岩石样品的透水系数和压力脉冲塌陷试验中的特定储存系数。解决方案:在压力脉冲塌陷试验中的不确定度降低技术 根据压力脉冲塌陷试验方法,对岩石样品施加轴向压力和密封压力,将上游池塘和下游池塘连接到岩石样品,在这种状态下,来自外部的压力脉冲 应用。 从表示通过在横轴和纵轴上使用压力脉冲塌陷试验方法得到的水分渗透系数和特定储存系数的目标函数的曲线图,读出表示轮廓线的最小值的坐标值。 基于坐标值,确定岩石样品的透水系数和比存储系数。 叠加并显示通过重复压力脉冲塌陷试验而获得的目标函数的图表,从而降低岩石样品的透水系数和特定储存系数的不确定性。