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   达西流速 的翻译结果: 查询用时:0.263秒
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达西流速
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  “达西流速”译为未确定词的双语例句
     Hirasaki's apparent shear rate equation was modified and the relational expression between shear rate in porous medium and Darcy's now velocity was obtained, and finally a in -situ rheological model for HPAM polymer solutions was constructed.
     合理修正了Hirasaki的视剪切速率表达式,获得了多孔介质的视剪切速率与达西流速之间的关系式,进而建立了HPAM聚合物溶液的地下流变模型。
短句来源
     The flow resistance of foam is affected by those parameters such as surfactant concen-tration,oil saturation, temperature, permeability,water and gas phase velocity, etc.
     泡沫的流动阻力受泡沫剂浓度、温度、油饱和度、渗透率以及水相和气相达西流速的影响。
短句来源
     Specific formulas of calculation are given. The results of mixed finite--element method are being compared with analytic solutions by an example. It shows that mixed finite--element method attains excellent mass conservation in local domain and yields good approximations to groundwater head and Darcy's velocities simultaneously.
     用混合有限元方法分析了地下水稳定渗流,导出了具体计算公式,并进行模型试算.计算结果与解析解比较表明,该方法在局部区域上质量是守恒的,计算出来的地下水的水头和达西流速精度较高.
短句来源
     The variabilities of water head,water content and Darcian flux were sensitive to the coarseness of soil texture.
     负压水头、含水率及达西流速的变异性对土壤质地的粗糙程度比较敏感;
短句来源
     Anisotropy of soil properties decreased the variability of the vertical Darcian flux.
     土壤介质的各向异性降低垂向达西流速的变异性。
短句来源
  相似匹配句对
     Anisotropy of soil properties decreased the variability of the vertical Darcian flux.
     土壤介质的各向异性降低垂向达西流速的变异性。
短句来源
     This term is a product among the non-Darcy coefficient,the fluid density and the square of flow velocity.
     非达西项是非达西系数、流体密度和流速平方的乘积。
短句来源
     2) Velocity profile method;
     2) 流速剖面法;
短句来源
     Symmetry; 3. The velocity of flow wasn't stable ;
     3.流速不稳定;
短句来源
     NEW PATTERN AND ITS RULES OF OIL NON-DARCY FLOW IN POROUS MEDIA
     石油非达西渗流的新模式
短句来源
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  darcy ' s velocity
The in-situ measurements show that Darcy's velocity is 0.95 m/d, while two different values for both real velocity kinematic porosity can be estimated.
      
However, the natural time scale of the propagating wave is reduced and consequently Darcy's velocity is increased as a result of fluid thermal expansivity.
      


Steam-foam co-injection process is applied to improve the sweeping efficiency of conven-tional steam drive. It promises significant recovery ot oil not recoverable by steam injectionprocess only. In this paper, a mathematical model for steam-foam co-injection processes is presentedand its numerical processing is discussed. All the mechanisms leading to surfactant losses andflow resistance of foam are taken into account. The flow resistance of foam is modelled bychanging the gas phase relative permeability and...

Steam-foam co-injection process is applied to improve the sweeping efficiency of conven-tional steam drive. It promises significant recovery ot oil not recoverable by steam injectionprocess only. In this paper, a mathematical model for steam-foam co-injection processes is presentedand its numerical processing is discussed. All the mechanisms leading to surfactant losses andflow resistance of foam are taken into account. The flow resistance of foam is modelled bychanging the gas phase relative permeability and residual gas saturation in the presence offoam. The flow resistance of foam is affected by those parameters such as surfactant concen-tration,oil saturation, temperature, permeability,water and gas phase velocity, etc.The results of field simulation showed that the injection of foaming agent will signifi-cantly improve sweeping efficiency and oil recovery of steam drive process. The calculatingefficiency of the numerical models on a microcomputer is practical and satisfactory.

提出了一个注蒸汽加泡沫过程的数学模型并讨论了数值处理方法。模型考虑了泡沫剂损失的各种机理及泡沫的流动阻力。用修改气相相对渗透率和束缚气饱和度的方法描述泡沫的流动阻力。泡沫的流动阻力受泡沫剂浓度、温度、油饱和度、渗透率以及水相和气相达西流速的影响。对一个现场问题的模拟结果表明:在非均质油藏注泡沫可以改善蒸汽的波及体积,提高采收率。

In this paper, the mixed finite--element method is applied to the study on steady flow of groundwater. Specific formulas of calculation are given. The results of mixed finite--element method are being compared with analytic solutions by an example. It shows that mixed finite--element method attains excellent mass conservation in local domain and yields good approximations to groundwater head and Darcy's velocities simultaneously.

用混合有限元方法分析了地下水稳定渗流,导出了具体计算公式,并进行模型试算.计算结果与解析解比较表明,该方法在局部区域上质量是守恒的,计算出来的地下水的水头和达西流速精度较高.

The relations between stable pressure drop and flow velocity of high molecular weight HPAM solutions were measured over a wide range of flow velocity through core simulation tests at 70℃. It was revealed that HPAM solution possesses dual rheological behaviors in porous medium, i. e. a shear thinning pseudoplasticity at lower flow velocity and a shear thickening viscoelasticity at higher flow velocity.Darcy's equation was extended to power law fluids by incorporating the rheology measured by a rheometer and the...

The relations between stable pressure drop and flow velocity of high molecular weight HPAM solutions were measured over a wide range of flow velocity through core simulation tests at 70℃. It was revealed that HPAM solution possesses dual rheological behaviors in porous medium, i. e. a shear thinning pseudoplasticity at lower flow velocity and a shear thickening viscoelasticity at higher flow velocity.Darcy's equation was extended to power law fluids by incorporating the rheology measured by a rheometer and the bulk rheological model into the bundle of capillary tubes pack which decsribes porous medium.Hirasaki's apparent shear rate equation was modified and the relational expression between shear rate in porous medium and Darcy's now velocity was obtained, and finally a in -situ rheological model for HPAM polymer solutions was constructed.

通过岩心模拟流动实验,在相当宽的流速范围内,测定了高分子量聚丙烯酰胺(HPAM)溶液在70℃油层温度下通过油藏岩石流动时的稳态压力降与流速的关系曲线,从而揭示了HPAM溶液在多孔介质中的复杂双重流变特性:在低速下呈剪切变稀的假塑性,在高速下出现剪切增稠的粘弹性。将流变仪测得的流变性和获得的本体流变模型引入描述多孔介质的毛细管束模型,从而把达西公式推广到了幂律流体。合理修正了Hirasaki的视剪切速率表达式,获得了多孔介质的视剪切速率与达西流速之间的关系式,进而建立了HPAM聚合物溶液的地下流变模型。

 
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