1.This paper analyzes the percolation mechanism and characteristics of gas under low-velocity percolation state in terms of slippage effect and threshold pressure effect by using molecular dynamics, thermodynamics and percolation mechanics in order to understand the practical reason of low-velocity non-Darcy percolation.
摘要为明确气体在低速渗流状态下的渗流规律以及产生低速非达西渗流的实质性原因,运用分子动力学、热力学和渗流力学等相关知识,基于滑脱效应和阈压效应两方面分析了气体在低速渗流状态下的渗流机理及渗流特征。
2.The five aspects of further research is put forward which are (1) establishment of percolation model applied to a series of polymers and polymer blends systems,(2) relationship of macroscopic properties and characteristic parameters of components,(3) research of the process of BDT with percolation theory,(4) research of BDT of nano-hybrids with percolation theory,and (5) application research and computer simulation of percolation model of polymer systems.
提出了可深入着手研究的五个方向,即建立系列聚合物和系列共混体系的逾渗模型、将其宏观性能与组分特征参数建立联系、展开脆韧转变的逾渗理论的过程研究、进行纳米共混物脆韧转变的逾渗研究以及聚合物体系逾渗过程的计算机模拟.
3.Percolating and the equivalent electrical circuit of cement-based conductive composite are analyzed.The characteristics of the lower percolation are found out.A new way to determine the lower percolation is proposed.Carbon fiber reinforced cement and graphite conductive cement are studied to identify the new way.It is found that the new way is precise and convenient to determine the lower percolation of cement-based conductive composite.
从理论上分析了水泥基导电复合材料的渗滤过程及其等效电路,得出了导电材料含量达到下阈值时的特征,提出了一种新的判定水泥基导电材料下阈值的方法,并用碳纤维增强水泥和石墨导电水泥进行了验证,发现这种新方法可以方便准确地确定水泥基导电复合材料的下阈值。
4.The main factors affecting percolation in low permeability reservoirs include stress, threshold pressure gradient, slippage effect and water-blocking effect, which play various roles on percolation, but all will result in non-linear percolation in the end.
影响低渗气藏渗流特征的主要因素有应力作用、启动压力梯度、滑脱效应和水锁效应等因素,并且这些因素对渗流影响各有不同,但最终均引起低渗气藏渗流的非线性化。
5.The development and descriptive methods of percolation theory are outlined in this paper. Based on its introduction, the presentation, development and application of percolation theory in brittle-ductile transition(BDT) of polymer blends are summarized.
在介绍逾渗理论的历史发展及其描述方法的基础上,总结了聚合物共混体脆韧转变(BDT)中的逾渗模型的提出、发展及应用.
6.Based on geological radar penetrating practice for soil and stone dam hidden dangers of reservoirs in northwestern loess areas and from the variations of the disturbance, pore ratios and water contents of the soil bodies in the percolation positions, the authors analyzed the variations of geological waveform characteristics and waveform phase axis continuation, and summed up the graph characteristics of the percolation hidden dangers in different periods.
摘要通过西北黄土地区水库土石坝渗流隐患探地雷达探测实践,从渗流部位的土体扰动、空隙比、含水量的变化入手,分析探地雷达波形特征变化、波形同相轴连续性的变化,总结了渗流隐患不同时期的探地雷达图像特征。
7.The percolation process of WSPS is taken as a unit, and a simplified contamination percolation process combined functional model is put forward, in which includes four layers as bottom sludge layer, substrate layer.
把稳定塘中污染质的下渗过程看作一种单元系统,提出了概化的稳定塘中污染质下渗单元耦合功能模型,对各功能层的功能进行了描述。
8.The percolation model that was compatible with the electric conductivity of TiB_2-BN composite could be established by using the theory of percolation to explain the conductivity of TiB_2-BN composite.
采用渗流理论解释了TiB_2-BN复相导电陶瓷的导电性能,确定了真空热压烧结的TiB_2-BN复相陶瓷的电阻率与导电相百分含量的关系符合渗流理论,V%>V_c%时,渗流模型为:ρ/ρ_c = 6.291×10~3×(V -18.2)~(-1.98)。
9.The domestic artificial map cracking (cavity) core is first presented, which is accordant with prerequisites similar to the real permeability and the percolation spatial configuration of the reservoir, and successfully applied to the long-core test under the conditions of high pressure, high temperature, high salinity and high viscosity available.
在国内首次人工制造出了同时符合油藏储渗层渗流空间形态要求和渗透率要求的网状裂缝(洞)岩心,并在四高,即压力高、温度高、矿化度高、粘度高的模拟油藏实际条件下成功应用人工制造网状缝岩心完成了轮古地区长岩心驱替实验。
10.Performance Prediction of 3 D Percolation after Oil Wells Being Acid Fractured
油井酸压后三维渗流动态预测