指进

不同实验条件下粘性指进的DLA模拟与分数维

DLA Simulation and Fractal Dimensions of Viscous Fingering for Various Experiments

以排出率（S）为目标函数，研究了出油孔数目（N）和孔距半径（R）对粘性指进的影响。

In this paper , Keeping discharge rate ( S ) as the targer function , studies have been carried out on effects of the oil exit pore number ( N ) and the radius of pore pitch ( R ) on the viscous fingering phenomenon .

Hele&ShawCell模型中粘性指进现象的研究Ⅰ.时间对粘性指进的影响

Studies on the viscous fingering phenomenon in hele-shaw cell model I. The effect of the time on discous fingering

国外CO2驱油防止粘性指进和重力超覆工艺

The Technology of Preventing CO _2 Breakthrough and Gravity Segregation Abroad

Hele-Shaw装置中粘性指进现象的研究

A Study on Viscous Fingering Phenomenon in a Hele-Shaw Apparatus

在油驱水过程中，CT扫描可直观显示油水分布的不均匀性和液相前沿的突进（即指进）现象以及流动情况，并可定量确定出不同区域含水（油）饱和度的变化。

In displacement of waler by oil , CT scanning can directly show heterogeneity of oil-water distributions , finger advance of fluid phase front and oil-water flows , and thus , determine the changes of water ( oil ) saturations in different regions quantitatively .

以扩散限制凝聚模型（简称DLA模型）为代表的分形生长模型的出现，为研究粘性指进现象带来了新的生机。

The new life was bought to the viscous fingering research , due to the presentation of DLA ( short for Diffusion-Limited Aggregation ) model , the type of fractal growth models .

提出了基于压力梯度的DLA指进模拟方法，通过定义几何空间和压力梯度结合的压力导向行走规则，研究了粒子在岩心孔隙空间的DLA行走问题，模拟了粘性指进的发展过程。

We propose a DLA viscous fingering model based on pressure gradient . The model , which is called pressure-guided rule , combines geometric space and pressure gradient . We investigate the DLA walking problem of particles in pore space and simulate the viscous fingering development process .

粘性指进的实验、模拟与多分形研究

Studies on Viscous Fingering ′ s Experiment , Simulation and Multifractal

利用真实砂岩微观孔隙模型研究粘性不稳定指进

Using the Natural Sandstone Micromodel to Study Viscous Instability Fingering

多孔介质粘滞指进中的毛细效应

The Capillary Effect of Viscous Fingering in Porous Media

非活塞驱替条件下粘性指进的表征及影响因素

Characteristics of viscous fingering and influencing factors under the conditions of non-piston displacement

多孔介质中指进发育机理及描述方法

Origination Mechanism and Description of Fingering in Porous Media

粘性指进现象的分形研究

The Research on Fractal Character of Viscous Finger

用聚丙烯酰胺水溶液驱替油溶液的粘性指进现象的研究（Ⅰ）

Studies on Viscous Fingering Phenomenon in Displacing Oil Solution by Aqueous PAA Solution (ⅰ)

“旅客”指进出境的居民或非居民。

" Passengers " refer to the incoming or outgoingentering or exiting residents or non-residents .

通过控制流体间的粘度差和驱替速度可以抑制粘性指进的发生。

So viscous fingering can be controlled by viscous difference between fluids and displacing velocity .

对各种不同的二维孔隙介质，给出了其分形粘滞指进的计算机模拟。

The computer simulation of fractal viscous fingering have been studied to various two-dimension porous media .

粘性指进现象分数维与宏观参量的关系

Macroscopic observation investigation on the relations among fractal dimension , viscosity ratio and sweep efficiency of viscous fingering

现场应用结果表明，该块油藏存在较强的平面矛盾和纵向矛盾，蒸汽在平面上存在明显的指进，纵向上动用程度不高。

Field using detected obvious plane and longitudinal contradictions , i.e. , obvious extending of steam on plane while little developing longitudinally .

结果表明，由于非达西渗流的影响，注水开发时容易发生指进现象，而地层倾角的增大可以削弱指进；

Fingering often occurs in waterflood development low permeability reservoir because of non-Darcy flow , which is weakened with formation dip increasing .

计算了粘滞指进分维，结果表明，增加逾渗概率，降低粘滞比可增加指进的分维。

The result shows that it can increase fractal dimension of VF as increase of percolation probability or reduce of viscous ratio .

分析结果认为，流体间的粘度差是产生粘性指进的内在因素，多孔介质的非均质性是诱发粘性指进现象的外在因素。

The result shows that viscosity difference between fluids is intrinsic factor that causes viscous fingering and porous media heterogeneity is extrinsic factor .

在简述粘性指进和重力超覆的基础上，对国外采取的工艺措施进行了调研。

Based on the brief description of the principle and phenomenon of CO2 breakthrough and gravity segregation , this paper investigates the technology abroad .

设计了一套研究多孔介质中非混相指进的实验方法，提出触发混相与非混相流体指进的系统因素。

An experiment device system to study fluid fingering in porous media is designed . We also summarized the factors triggering miscible and immiscible fingering .

注入油层的湿饱和蒸汽向油层顶部超覆推进以及沿高渗透区域指进一直是蒸汽吞吐开采过程中的主要矛盾。

Injected wet saturated steam moving override on top reservoir and fingering along high permeability zone have been the main problem of cyclic steam stimulation .

粘性指进现象，普遍存在于油气开采的众多驱替过程中，是多相渗流的重要特征之一。

Viscous fingering is one of the vital features of multiphase seepage , which widely exists in various displacements of petroleum and natural gas production process .

设计了一个分形（粘性指进）的教学实验，让学生通过动手操作和计算机模拟得出各种粘性指进分形图形，并测量分形维数。

An experiment on fractals for undergraduates has been designed in which students can obtain various viscous fingering fractal patterns through hands-on operation and computer simulation .

孔隙介质的几何拓扑很强地影响驱替过程和粘滞指进的结构。

We have found that the topology and the geometry of the porous medium has strong effect on the displacement processes and the structure of the VF .

常规多层油藏在注水开发时由于各储层物性差异特别是渗透率的差异，会引起各储层油水前缘的指进现象。

Different characteristic of oil bearing strata , especially permeability contrast can arise fingering of the water oil frontal during waterflooding stage in a regular multilayer reservoir .