A nonlinear dual-porosity model considering a quadratic gradient term is presented.
考虑了二次梯度项的非线性双重介质模型。
The most protruding question of carbonate reservoir are extremely strong unhomogeneity and dual porosity model characteristics.
碳酸盐岩油藏最突出的问题是极强的非均质性和双孔隙网络特征。
Therefore, high precision porosity prediction is the key to constructing geological model of reservoirs.
因此，高精度的孔隙度预测是建立储层地质模型的关键。
During the Carbonate gas reservoir's numerical simulation process, it is often short of exact and quantitative fracture model, especially porosity and permeability models.
碳酸盐岩油气藏在数值模拟的过程中往往缺少准确定量的裂缝模型，尤其是裂缝孔隙度和渗透率模型。
A new method for simultaneous inversion of porosity and saturation based on rock-physics model and hybrid optimization method was presented.
提出了一种基于岩石物理模型与混合优化算法同时反演孔隙度和饱和度的新方法。
The fractional geometry model of porosity and permeability was developed based on fractional Kriging interpolation principles.
同时利用分形克里金插值理论，建立了孔隙度和渗透率的分形几何模型。
With mercury injection capillary curve and thin section, hole porosity and throats with their shapes and distributions are studied and porosity structure model is set up.
通过压汞法毛细管压力曲线和铸体图象分析方法分析孔隙、喉道大小、分布及其几何形状，建立孔隙结构模型。
This kind of model is more close to the realistic situation, and is easy to use as in the case of a double porosity medium model.
这种模型比双重介质模型更接近实际，而且能更好地利用微孔隙结构的实验数据。
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.
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。
Using the function between the porosity and the diffusion coefficient and frequency in the diffusion impedance, the finite diffusion model evaluated the porosity.
有限扩散模型则利用孔隙率与扩散系数和频率间的函数关系测定；
Methods Based on soil radon diffusive theory, a model including the influences of soil radium content, emanation coefficient, soil porosity and moisture saturation on radon exhalation was established.
方法通过对氡在土壤中扩散理论的分析，建立土壤氡析出率数学模型，该模型考虑了土壤的镭含量、射气系数、孔隙度和含水饱和度等因素对氡析出率的影响。
The experimental result shows that the PL peak position does not blue shift much as the prediction from the quantum confinement model with the porosity of porous silicon increasing.
发现光致发光峰位随多孔度增加而蓝移的数值远小于量子限制模型预期的结果。
The structure and its control of the porous aluminum prepared by a special pressure infiltration process was studied , for which a model for calculating the porosity of porous metals was developed.
利用自行研制的填料粒子，采用独特的渗流法制备了多孔金属铝，提出了填料颗粒为球形时多孔金属孔隙率的计算模型，实验证明用此模型预测多孔金属的孔隙率是可行的。
Finally, the model of matrix porosity and the evolution of permeability tensor of Microfracture for hydraulic fracturing rock is established.
最后，建立水力压裂岩体基质孔隙和微裂缝渗透张量演化模型。
Porosity and rock strength of formation had got by utilizing mathematics model of porosity and rock strength which base on acoustic time have big derivation with actual situation.
现有基于声波时差的孔隙度及岩石强度计算模型反演出的地层孔隙度及岩石强度信息与实际地层偏差较大。
This model is suitable for predicting the porosity of clastic rock reservoirs with relatively high matrix content.
因此该模型可用于填隙物含量较高的碎屑岩储层孔隙度预测。
The model simulates sodium flow in the steam generator as quasi-continuum. The model USES volume porosity, area permeability and distributed resistance to model the tubes and support plates.
假设为大孔隙多孔介质，模拟钠在蒸汽发生器内的流动，引入体积孔隙率，面渗透率和分布阻力来模拟管束、支撑板对钠流动的扰动。
Through the biodegradation model and a stress-age coupled compression model for MSWs, a porosity prediction model is presented.
在生化降解模型和应力降解压缩模型基础上，提出了城市生活垃圾孔隙率计算模型。
A new iteratively solving method of dual porosity media model material balance correction method of iteration solutions is put forward.
针对这种模拟求解过程中物质平衡误差偏大问题，提出了迭代解的物质平衡校正方法。
This demonstrates that the correlativity of predicted porosity and core porosity based on the model FITBIVAR is better than the linear model.
基于FITBIVAR模型解释的渗透率与岩心渗透率的相关性明显好于线性模型解释的相关性。
RNG turbulent model combining with VOF method, porosity method and wall function was used to simulate and research the flow around a spur-dike.
基于RNG紊流模型，采用VOF法、空度法和璧面函数法分别处理自由面、不规则边界和壁边界，对丁坝附近的水流进行了模拟和研究。
Correlative test data show that this model has good applicability, and can reflect the development of the porosity under certain condition.
相关试验数据验证表明，所建立的渗透率理论模型具有良好的适用性，能反映出一定条件下的渗透率演化趋势。
The accuracy is proved by comparing the calculated fracture porosity and the porosity from model.
用计算得到的裂隙孔隙度值与模型裂隙孔隙度值进行对比，验证其正确性。
An anisotropic damage model and an effective thermal conductivity model were presented based on homogenization techniques for low-porosity brittle rocks subjected to mechanical and thermal loadings.
基于均匀化方法给出低孔隙率脆性岩石在热—力耦合荷载作用条件下的各向异性损伤模型和有效热传导特性模型。
Based on the law of permeability changing with pressure, a mathematical model is established for unsteady percolation in dual-porosity reservoirs with arbitrary shape of stress sensitivity.
基于渗透率随压力呈指数变化规律，建立了任意形状应力敏感性双重介质油藏不稳定渗流的数学模型。
21 work conditions of opening location, area, model volume and background porosity were carried out.
进行了不同开孔位置、开孔大小、模型内部容积、背景孔隙率等21个工况下的风洞试验。
A dual-porosity and dual-permeability model of fracture-vug carbonate reservoir is established, and fully implicit method is used to solve the inter-porosity flow function.
在此建立了碳酸盐岩缝洞型油藏双孔双渗渗流模型，利用全隐式方法对孔洞与裂缝间窜流量的计算函数进行了求解。
The paper indicates that it is very instructive and meaningful to analyze admixture effect of mineral admixture by established porosity-strength model.
孔隙率强度模型的构建，对分析矿物掺合料的掺合效应具有重要的指导意义。
The pore radii distribution has some influences on tensile strength of disk model with smaller porosity.
当孔隙率较小时孔径分布对抗拉强度有一定的影响；
The pore radii distribution has some influences on tensile strength of disk model with smaller porosity.
当孔隙率较小时孔径分布对抗拉强度有一定的影响；
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