渗透

Furthermore, as stresses in the stress field influence the value of seepage coefficient k, which will results in the change of seepage field in the end, while on the other hand, the seepage field also has an effect on the stress field because of seepage forces. Based on the coupling model of seepage field and stress field, a program by finite element method is developed in this paper. And the comparison of results of the program and criterion method with that of test shows that the test results are reasonable, which can be referred to analyze the causes of dangers, evaluate degree of safety of the body and foundation, and design and optimize the measures of seepage control.

此外，考虑到应力场中的应力会改变土体渗透系数进而影响渗流场、而渗流场也因其产生的渗透力会导致应力场发生变化，两者之间存在耦合作用，本文基于渗流场应力场耦合分析的数学模型编制了渗流计算有限元程序CCOSAS1.0，其计算结果和采用规范方法所获得的解答与实测值的对比分析表明，该规律合理且具有一定的代表性，可用以分析险情发生原因、评价堤身堤基安全状况及设计与优化渗流控制措施。

Shear stress is calculated based on Brinkman equation using the finite volume method with proper boundary conditions.

可渗透圆柱及圆柱阵列之间的间隙物使用具有不同渗透率的多孔介质模型，基于Brinkman方程，配以适当的边界条件，采用有限体积法进行数值求解。

To resolve these problems, this paper deals with the technology of foamed acidizing. The anti-salt and anti-acid foamer DY-1+SJ-8 and foam stabilizer KMS-2 were selected, then their performance under different foamer concentration condition was evaluated and the proper concentration was determined. Thereafter the diversion experiment of foamed acid through the parallel core was conducted.

针对上述问题，对泡沫酸酸化技术进行了研究：通过室内实验筛选出了耐酸耐盐的起泡剂DY-1+SJ-8和稳泡剂KMS-2，并对不同起泡剂浓度下的泡沫酸性能进行了评价，确定了其使用浓度；在此基础上进行了泡沫的岩心分流实验，实验结果表明泡沫泡体可以增加低渗透岩心的分流量，减少高渗岩心的分流量，使泡沫流体在不同渗透率岩心内均匀推进。

In addition, under the condition of drought stress, the continuous rise of the content of fusibility total sugar and proline increased the osmotic adjustment ability.

另外，可溶性糖和脯氨酸等渗透物质含量在干旱胁迫下持续升高也使其渗透调节能力加强。

Abrupt fluid contacts indicate a permeable reservoir;gradational ones indicate a low permeability with a high capillary pressure.

突变的流体界面表层储层具有很好的渗透率，而渐变的流体界面表明储层的渗透率较差，且储层的毛细压力较高。

The results show that the thicknesses of depleted formation were commensurate to the gyration radius of polymer molecule.

通过改变聚合物溶液浓度和岩心渗透率，计算了较宽浓度范围和渗透率范围内的衰竭层效应。

The priorities are the diversification characteristics of each targetin the subsequent water flooding. According to diversification characteristics of these targets,the paper studies how the heterogeneousness, water flooded condition, interconnectingcondition of zone;key measures injector parameters affect these targets from polymer floodingmechanism. Based on influence equations, production target prediction models are built usingHall curve theory, relative permeability curve, relations of water saturation and relativepermeability and material balance equation. Parameters of models are calculated by the way ofcomputer program and so that a simple, fast way have been gained to predict production targetof polymer subsequent flooding.

针对这些指标的变化特点，从聚合物驱油机理上分析其油层非均质性、油层水淹状况、油层连通状况、主要措施及注入参数等因素对这些指标的影响，在分流方程的基础上，利用霍尔曲线原理、相对渗透率曲线、含水饱和度与相对渗透率之间的关系以及物质平衡方程建立起开发指标预测模型，结合数学方法对模型参数进行计算，形成简便、快速、实用的聚合物驱后续水驱阶段开发指标预测方法。

The application of the permeability obtaining with stoneley-wave inversion in those complex lithology reservoirs with lower porosity and permeability shows that the permeability from stoneley-wave is a good reference to divide into zone for those reservoirs with relatively good wellbore conditions, big sediment thickness and good homogeneousness. This enlarges the application scope of acoustic logging.

斯通利波渗透率在低孔、低渗透性复杂岩性储层的应用结果表明，对于井眼条件相对较好、储层发育厚度大且均质的该类储层，可参考斯通利波渗透率进行储层的有效性划分，从而拓宽了声波测井的应用范围。

A new method using gel permeation chromatographic cleanup followed by high performance liquid chromatography-tandem mass spectrometry has been established for quantitative determination of Maleic hydrazide,Prowl and butralin residues in tobacco.

建立了用凝胶渗透色谱净化-液相色谱-串联质谱分析烟草中3种抑芽剂残留的方法。卷烟中的待测抑芽剂组分用V∶V=1∶1超声提取后通过凝胶渗透色谱净化；凝胶色谱柱为Biobeads S-X3玻璃柱(50 g，400 mm×25 mm)，流动相为V∶V=1∶1溶液，流速5 mL/min；收集第10~25 min流出的液体用液相色谱色谱-三重四极杆串联质谱仪测定。

Based on the theory of hydromechanics, this paper has proved that the resultant force of seepage force and buoyant force is identical to that of ambient pore water pressure.

文中以流体力学的基本理论为依据，从渗透力概念定义的微观源头上，证明了渗透力是一种等效力。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了