考虑了二次梯度项的非线性双重介质模型。
A nonlinear dual-porosity model considering a quadratic gradient term is presented.
煤层不是单纯孔隙介质，而是典型的双重介质中的双孔介质。
Coal is typical double porous medium, not pure porous medium.
煤岩体既有大量的微孔隙又有割理的存在，可以简化为双重介质模型。
Coal rock body is simplified as a double-medium model, including a plenty of micropores and cleats.
双重介质储层受损害的主要原因，是外来液相的侵入或固相颗粒的堵塞。
The invasion of extrinsic liquid phase and the plugging of solid-phase particle are the main factors which damage dual-media reservoirs.
非均匀双重介质油气藏不稳定渗流问题是目前渗流力学研究的一个重要问题。
It's well known that question of unstable seepage flow in heterogeneous reservoir is an important and difficult task in the research of porous media percolation mechanics.
非均质双重介质油气藏不稳定渗流问题是目前渗流力学研究的一个重要问题。
It's well known that the question of unstable seepage flow in heterogeneous reservoir is an important and difficult task in the research of porous media percolation mechanics.
建立了对非均质各向异性双重介质煤层气进行定向羽状水平井开采的数学模型。
A mathematical model for describing coalbed gas recovery in heterogeneous anisotropic dual medium of pinnate horizontal multilateral Wells was established.
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。
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.
因该气藏呈现双重介质渗流特征，现有的增产效果解析数模不适宜评价其压裂增产效果。
Because the gas reservoir behaves double media seepage features, current analytical model are not suitable for evaluating its enhancing effects resulted from sand fracturing.
相对于等效多孔介质模型，双重介质模型模拟的水位下降速度更小，达到稳定的时间更长。
Compared with conventional equivalent porous medium model, the water level changes simulated by this double medium flow model are slower and the time of being stable is longer.
双重介质低渗油气藏，往往存在低速非达西渗流，故该类油气藏的油气井试井分析更具复杂性。
Low velocity non Darcy flow of dual media oil gas reservoirs with low permeability often makes well testing analysis more complicated.
单一介质、双重介质、三重介质非定常达西渗流及组合油藏达西渗流，只是上述问题的特殊情况。
The unsteady Darcy flow and the Darcy flow in composite reservoirs through porous medium, double medium and triple medium are special cases of their own.
在现代试井解释中，经常会遇到许多的试井物理模型，其中包括均质、双重介质、复合油藏等模型。
In well test analysis, many well test physical models are often used, including homogeneous, dual-media, composite reservoir model etc.
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。
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.
该文以基于双重介质理论的单裂隙迁移模型为基础，介绍裂隙介质中放射性核素迁移行为的模拟方法。
Based on the single fracture transport model from the double media theory, the paper introduces the simulation method of the radionuclide transport behavior in the fractured media.
本文在双重介质油藏和复合油藏的渗流问题及试井模型理论基础上，研究了双重介质复杂油藏试井模型。
Based on the model of well test analysis for two-region reservoir and composite reservoir, this thesis studies the model of well test analysis for two-region composite reservoir.
本文建立求解的模型有：均质油藏、双重介质油藏、径向均质复合油藏、双渗油藏和带有气顶的双重介质油藏。
The models established in the paper are homogeneous reservoir, double porosity reservoir, dual-penetrate reservoir, composite reservoir and dual-porosity reservoir with gas-cap.
当前裂隙岩体地下水渗流数值模型主要有三种：等效连续介质模型、离散裂隙网络模型和裂隙-孔隙双重介质模型。
Mathematical models of seepage in fractured rock can be classified into: continuum seepage model, discrete fracture network seepage model and continuum-discrete coupling seepage model.
计算表明：考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量，当净压力较高时，二者可相差10倍之多。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
为此采用拟双重介质模型模拟该类油藏：好储层对应裂缝系统，差储层对应基岩系统，但双重介质间窜流量考虑了储层之间的有效接触面积。
Therefore dual medium model was used for the reservoir simulation, where good reservoir was corresponded to fracture system and poor reservoir was to matrix system.
本文通过对淋滤液运移模型的研究，给出了多孔介质和双重介质淋滤液运移模型的定解问题，采用广义迎风格式求解淋滤液运移模型，消除数值弥散。
Equations of transport model of leachate for porous media and double media are given. Generalized upwind scheme is used to solve the transport model of leachate and to eliminate numerical dispersion.
为了评价地下水水流条件的变化对放射性核素迁移行为的影响，该文以双重介质理论的裂隙迁移模型为基础，提出了非恒定流条件下单裂隙核素迁移模。
To assess how such changes may affect the nuclide transport behavior, the paper proposes a single fracture nuclide transport model under time-varying groundwater flow conditions based on t.
双重各向异性是多孔介质的一个基本性质，它对油藏流体的流动乃至油气生产都有一定的影响。
Dual anisotropism is a basic characteristic of porous medium. It has an effect on the flow of reservoir fluid and oil and gas production.
冷124块花岗岩潜山油藏具有双重孔隙介质的渗流特征。
The granite buried hill reservoir in block Leng124 shows the percolation characteristics of dual porosity media.
岩溶裂隙介质可视为双重孔隙度介质。
The karst fissure medium can be regarded as dual medium of porosity.
考虑与实际生产相符的介质的双重特性和分形特征，并考虑介质的变形，引入双重分形介质渗透率模数，建立应力敏感地层双重分形介质系统的流动方程。
We establish a flow equation stress_sensitive to permeability for fractal and deformed double porous media and introduce permeability modulus of double porous media fractal reservoir.
以五点井网为例，用数值方法研究了双重各向异性介质的驱替特征和注水开发井网的部署问题。
This paper takes 5-point-pattern as an example and uses numerical method to study the displacement characteristic of dual anisotropic medium and the pattern arrangement of water flooding development.
煤储层是一种双重孔隙介质，其孔隙由基质孔隙和裂隙组成，并具有自身独特的割理系统。
Coal reservoir is a dual porous rock composed of matrix porosity and fracture with its unique cleat system.
缝洞孔复合型具有双重孔隙介质的特点，压力恢复曲线具多台阶型。
The third type has double porosity system, and the build-up curve has a stepwise form.
缝洞孔复合型具有双重孔隙介质的特点，压力恢复曲线具多台阶型。
The third type has double porosity system, and the build-up curve has a stepwise form.
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