通过渗流流量和压力相关试验测定了滑脱修正系数和渗流指数以及渗流系数,并将该方程的计算结果和现场产量做了对比,证明了该方法的正确性。
Measured coefficient of slippage, seepage index and seepage coefficient by experiment, and compared calculated results with spot results and verified the effectiveness of this method.
论述了国内外计算隧道衬砌外水压力的折减系数法和渗流场计算方法。
The paper discusses the methods of the coefficient reduction in determining tunnel lining's external water pressure in the world.
在驱油过程中,驱油剂的稠度系数沿渗流方向呈指数规律减小,而幂指数则以线型规律递增。
In chemical flooding, consistency coefficient of the oil displacement agent declines exponentially, the power law exponent increases linearly in the direction of percolation flow.
发现污染物在土壤中的质量浓度分布与渗流速度、作用时间、扩散系数等有关。
The results showed that the intensity distribution had relation with the velocity of percolation, time, coefficient of convection and diffusion.
因此,注蒸汽热采可以改善稠油渗流特性,降低残余油饱和度,提高驱油效率、波及系数及采收率。
The steam flood can improve heavy oil seepage flow characteristics, remain oil saturation, and enhance oil displacement efficiency, conformance factor as well as EOR.
以渗透系数、孔隙率和应力的关系作为桥梁,当渗流场为非稳定渗流时,建立等效连续岩体渗流的耦合模型。
By the linkage between the seepage coefficient, porosity and stress, the hybrid analysis model for coupled seepage and stress field in rock mass of equivalent continuum is established.
计算了某工程路堑边坡稳定系数和渗流对边坡稳定性的影响系数。
The influence coefficient of seepage on slope stability is calculated in a cutting slope.
本文研究了异常高压油藏稳定渗流规律,建立了利用系统试井资料求取渗透率变化系数的方法。
The paper studied stable seepage flow rule of overpressure reservoir and created the method for using systematic well testing data to compute permeability variation coefficient.
基于多孔介质中的渗流过程,定义了一个定量评价油藏渗透率水平非均质性的新参数———非均质系数。
A parameter for quantitatively describing the lateral heterogeneity of reservoir permeability — heterogeneity factor is defined based on the percolation flow through porous media.
工程实际应用表明,所提出的三维非承压水渗流场分析和大坝渗透系数识别方法是非常有效的。
The practical application shows that the presented study of three dimensional seepage field with free surface and the identification procedure of aquifer parameters are available.
实验研究了外加直流电场作用下水驱油藏多孔介质中的流体渗流速度、阻力系数、储层渗透率及原油采收率的变化特性。
The variation of seepage velocity, resistance coefficient, reservoir permeability and oil recovery in porous media of water-drive reservoir in direct current (DC) electric field are studied in detail.
基于大坝渗透系数的识别结果,采用三维有限元法分析了大坝坝体和坝基的渗流场。
The seepage fields are studied with finite element method based on the identification results of aquifer parameters.
在此基础上,结合观测资料,采用有限元法反演了大坝各填筑区的渗透系数,并综合评价了大坝的渗流性态。
Based on the observation data, by the finite element method the seepage coefficient of the dam body is reversed, and then a comprehensive evaluation of seepage behavior is made for the dam.
本文根据基坑防渗帷幕周围的地下水渗流特征,分析了渗流力对基坑流砂的影响,提出了按涌砂安全系数进行防渗帷幕埋入深度计算的方法。
The influences of seepage force on foundation pit quicksand are analyzed herein based on the features of groundwater seepage around the water tight screen in the pit.
分析了渗流自由面的变化规律,讨论了渗透系数变化对渗流自由面及基坑变形的影响,并与不考虑渗流自由面变化时的结果进行比较。
The variation of seepage free surface with time was analyzed, and the influence of soil permeability on seepage free surface and deformation was then discussed.
建立了同时考虑针的流阻和滤头及容器内水柱影响的渗流分析模型,并得到线性流阻下地基渗透系数与容器内压力的解析关系。
Theoretical model was described considering both flow-resistance and water column of filter and container, and analytical solution was gained under linear flow-resistance.
总结了近年来裂隙岩体渗透系数的确定方法,主要有现场水力试验法、裂隙测量法和离散裂隙网络渗流数值试验法。
Field hydraulic tests, fracture measuring, numerical flow test method of discrete fracture network are often used to determine hydraulic conductivity.
定量分析对井回灌过程中回灌井周围渗流场变化,渗透系数呈指数衰减。
The permeability coefficient of the seepage field changes in the exponent attenuation.
定义了渗透率的应力敏感系数,在应力敏感系数的基础上,建立了渗透率随有效应力的变化关系式,为建立应力敏感性油气藏渗流模型奠定了基础。
By this method, core permeability in reservoir condition can be calculated conveniently, which provides a basis to establish percolation model of stress sensitivity oil and gas reservoir.
基于三维比奥固结理论,建立了考虑渗透系数非线性耦合响应的渗流场与应力场完全耦合模型。
Based on Biots consolidation theory, the fully coupling model of seepage and stress is established considering nonlinear coupling response of permeability coefficient.
岩体裂纹的扩展引起岩体渗透系数的增加,导致渗流场的改变。
The cracks growth induce the increase of permeability coefficient, ultimately the change of seepage field.
在恒定围压和瓦斯压力的情况下,软分层煤样的瓦斯渗流速度和渗透系数均随着有效轴向压力的增大而呈“Z”形变化;
The seepage velocity and penetrability coefficient appeared changing of the"Z"shape with the increase of the effective axial feed when the confining pressure and gas pressure were constants.
针对低渗透地层垂直裂缝井的渗流过程,考虑了启动压力梯度和介质变形系数的影响,建立了三线流模型。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
结果表明,微裂缝性特低渗透油藏一维单向渗流的压力分布影响因素比较多,如启动压力梯度、变形系数、生产压差和排距等,并且这些因素均以非线性方式产生综合影响。
The single-phase porous flow plugged by mobile gels is nonlinear, the starting pressure of oil is lower than that of water, and the permeability of oil is higher than that of water.
在线性加载的情况下,考虑了扰动区土体水平渗透系数抛物线变化以及桩周土体的径、竖向组合渗流,给出了该问题的控制方程以及解答。
OADC with consideration on the gradual variation of horizontal permeability of soil in disturbed zone is greater than the one without considering the horizontal permeability variation.
在线性加载的情况下,考虑了扰动区土体水平渗透系数抛物线变化以及桩周土体的径、竖向组合渗流,给出了该问题的控制方程以及解答。
OADC with consideration on the gradual variation of horizontal permeability of soil in disturbed zone is greater than the one without considering the horizontal permeability variation.
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