1、

Investigation on characteristics of physical parameters under formation overburden pressure

地层上覆压力下物性参数特征研究

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2、

The research and application of permeability, porosity and net overburden pressure laws

孔隙度、渗透率与净覆压的规律研究和应用

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3、

Of the pressures, the one caused by the weight of overlying sediments, we call it overburden pressure, is the most obvious.

在这两种压力之中,由上覆沉积物重量造成的压力最为明显,我们称这种压力为上覆压力。

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4、

The research shows that the relationship between formation porosity, permeability and net overburden pressure is closely related to univariate quadratic equation;

结果表明:油层孔隙度、渗透率与净覆压的关系以一元二次方程最为密切;

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5、

The oil shale on the surface show opening foliation, abundant pore volume and low density because of less overburden pressure.

地表油页岩由于覆压减小等影响,页理张开、孔隙增加、密度减小。

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6、

Determination and Regression of Overburden Pressure Gradient

上覆岩层压力梯度合理计算及拟合方法

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7、

Overburden pressure has a strong influence on permeability and pore structure.

上覆地层压力对渗透率及孔隙结构特征影响很大。

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8、

Large area field immersion tests on characteristics of deformation of self weight collapse loess under overburden pressure

大厚度自重湿陷性黄土场地湿陷变形特征的大型现场浸水试验研究

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9、

The low-permeability cores show stress sensitivity during the effective overburden pressure increasing.

低渗储层岩心在有效上覆压力增大的过程中会表现出较强的应力敏感性。

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10、

Calculate the overburden pressure by density logging;

利用密度测井方法计算出上覆岩层压力;

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11、

The overburden pressure is calculated accurately and normal trend line equations are determined during the prediction.

然后在预测过程中,准确计算上覆岩层压力,确定合适的正常趋势线方程.

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12、

The flow period may change the filtration behavior that affected overburden pressure and clay content.

此外,水流周期之长短也会改变覆土压力、黏土含量等变数对于土壤-地工织物过滤系统的影响.

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13、

Overburden pressure for three hundred years , isolated the light of day.

覆压三百余里, 隔离天日.

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14、

Parametric analysis is carried out to investigate the effects of soil dilation and overburden pressure on the soil nail pullout resistance.

结果显示,当上覆压力较小时,剪胀角对抗拔应力的影响较小。

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