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砂模型
相关语句
  sand model
     A dense sand model based on thermomechanics principle
     一种基于热力学原理的密砂模型
短句来源
     In this paper, we utilize sand model test as the basis to study the physical and mechanical processes of unsteady seepage in homogeneous earth dams on impervious foundation.
     本文以砂模型试验为基础,探讨了不透水地基均质土坝非稳定渗流的物理力学过程。
短句来源
     Two kinds of distolacing agents of nonionic surfactants are selected out of 20 pieces of chemicals by utilizing three tests (titrating test. phase behavior test and displacement test) conducted in the sand model tubes.
     通过用滴定、相态和填砂模型驱替原油3种方法对20种化学试剂进行筛选,最终选出了2种聚醚型非离子表面活性驱油剂F_1和F_2,同时对其盐的影响、活性剂浓度、热稳定性及界面张力的特性作了测定。
短句来源
     Experiment with sand model indicatesthat gravity exists during alternative displacement.
     夹砂模型实验表明,交替驱过程中存在重力作用。
短句来源
     The similartiy law and time scale of flood process duration for modeling are investigated in the sand model test for levee of Beijiang River,Guangdong Province,and a method for estimating the development duration of piping in levee is deduced.
     结合北江大堤洪峰模拟过程,讨论了砂模型试验的模型相似律和时间比尺的推算问题,给出了管涌险情发展时间的参考值。
短句来源
  “砂模型”译为未确定词的双语例句
     On a plate-like sand pack of permeability 1 μm~2 48% oil recovery is obtained by water flood and an enhancement in oil recovery 13.6% is obtained by injection of 1 PV bacterial culture+nutrients and cultivation at 51℃ in 10 days followed by water flood.
     在渗透率1μm2的板状填砂模型上水驱油采收率为48%,注入1PV菌液+营养液,在51℃培养10天后再水驱,提高采收率13 6%。 图12参6。
短句来源
     The result showed the maximum adsorption of SLPS was up to 4.8 mg/g at the concentration over 10 g/L, and there was chromatographic separation between SLPS and 1 # assistant surfactant, which didn't affect the recovery by increasing the surfactant concentration in flooding liquid.
     结果表明,胜利石油磺酸盐浓度在10 g/L以上时,油砂吸附量最大达4.8 mg/g; 胜利石油磺酸盐与助剂1#之间存在色谱分离现象,且填砂模型越长,分离越明显,说明现场应用时,只要适当增加注入液浓度,复配协同效应可得到发挥。
短句来源
     The recovery rate of the sand pack will increase by 6.4% to 15.5% after flooding.
     在水驱后能够提高填砂模型采收率6.4~15.5个百分点,双液法效果好于单液法。
短句来源
     In a foam flooding experiment on a artificial core, 16.4% residual oil of water flood is recovered, that is, oil recovery enhancement is 6.98%.
     在人工填砂模型上,该起泡液与8倍体积的氮气形成的泡沫驱出了水驱残余油16.4%,提高采收率6.98%。
短句来源
     Using sand-packed model, it elicits the PAG absorbent gel's oil displacement increasing extend is 18.35%, which shows better oil displacement efficiency.
     利用填砂模型得出其驱油效率较高,驱油增幅达18.35%。
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  相似匹配句对
     E model of CRM.
     E模型
短句来源
     model.
     模型
短句来源
     Optimum B-P Nerve Net Model for Sand Control
     防方法优选的B-P神经网络模型
短句来源
     A PREDICTABLE GEOLOGIC MODEL OF SEDIMENTARY FACIES AND SANDS
     储层微相及体预测模型
短句来源
     On Sand
     论
短句来源
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  sand model
Multi-surface Cyclic Plasticity Sand Model with Lode Angle Effect
      
A Drucker-Prager J2 multi-surface-plasticity sand model is modified to employ the Lade-Duncan failure criterion as the yield function.
      
Vegetation, rocks and sand model their coastal habitat providing suitable places for shelter and nesting.
      


In this paper, we state the usual methematical models of unsteady seepage flow in embankment dams from physical concept for up to date our cou-ntry and foreign countries. On the other hand, according to the physical meaning of drainaging porosity μ, that is usually regarded by adopting final steady value would not satisfy the physical course of unsteadyseepage flow. Thus we propose different values of μ in corrsspondrng time intervals are suitably chosen.With a great deal of computations by finite element method...

In this paper, we state the usual methematical models of unsteady seepage flow in embankment dams from physical concept for up to date our cou-ntry and foreign countries. On the other hand, according to the physical meaning of drainaging porosity μ, that is usually regarded by adopting final steady value would not satisfy the physical course of unsteadyseepage flow. Thus we propose different values of μ in corrsspondrng time intervals are suitably chosen.With a great deal of computations by finite element method for each mathematical model and by analyzing of the position of free surface, distribution of flow field and stability of upstream slope, the physical comfigu-ration of unsteady seepage flow in embankment dams is satisfied by eq.(l) with associate the boundary condition of seepage discharge of free surface and that in comparison with experimental data of sand model is verified available.

本文针对目前国内外常用的堤坝非稳定渗流数学模型,从物理概念上进行了论述.又从给水度μ的物理含意出发,认为以往通常选用最终稳定值不符非稳定渗流的物理过程.提出给水度必须按不同时段选用相对应的值.文中应用有限单元数值分析进行了大量计算,从自由水面、流场分布及上游边坡稳定三者综合分析,认为固结方程加自由水面流量补给边界、采用按不同时段选取对应的μ值,更确切地反映堤坝非稳定流物理状态,并以砂模型试验资料加以验证,获得满意的结果.

In this paper, we utilize sand model test as the basis to study the physical and mechanical processes of unsteady seepage in homogeneous earth dams on impervious foundation. Some factors influencing the effective porosity μ are analysed. Based on the action of effective porosity μ in the unsteady seepage, it must be considered that μ changes with time in calculation.

本文以砂模型试验为基础,探讨了不透水地基均质土坝非稳定渗流的物理力学过程。分析了影响给水度μ值的若干因素,从给水度在非稳定渗流过程中的作用,提出了在计算中必须考虑μ值随时间的变化过程。 经有限单元法大量计算,从自由水面变化过程、流场分析及上游边坡稳定综合分析可知,式(4)按不同时段选取相对应的μ值进行计算,基本符合堤坝非稳定渗流的物理状态。

Two kinds of distolacing agents of nonionic surfactants are selected out of 20 pieces of chemicals by utilizing three tests (titrating test. phase behavior test and displacement test) conducted in the sand model tubes. The selected agents, poly ether-type, are called as F_1, F_2. In the laboratory, these agents are put through some tests in thermal stability, salt tolerance and maintenance of lower oil-aqueous interface tension. Results of tests have demonstrated that the displacing agents F_1, F_2 have satisfactory...

Two kinds of distolacing agents of nonionic surfactants are selected out of 20 pieces of chemicals by utilizing three tests (titrating test. phase behavior test and displacement test) conducted in the sand model tubes. The selected agents, poly ether-type, are called as F_1, F_2. In the laboratory, these agents are put through some tests in thermal stability, salt tolerance and maintenance of lower oil-aqueous interface tension. Results of tests have demonstrated that the displacing agents F_1, F_2 have satisfactory characteristics. In consideration of their high effeciency of oil displacement achieved, they may safely be recommendable as a slug driving agent used in EOR.

通过用滴定、相态和填砂模型驱替原油3种方法对20种化学试剂进行筛选,最终选出了2种聚醚型非离子表面活性驱油剂F_1和F_2,同时对其盐的影响、活性剂浓度、热稳定性及界面张力的特性作了测定。试验结果表明:所选驱油剂热稳定性好,具高抗盐性,能降低油水界面张力(可降至10~(-2)数量级),有较高的驱油效率(砂模驱替残余油采收率可达25~30%以上)。据此可以认为,F_1和F_2是江汉油区高含盐地层的良好驱油剂。

 
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