查询词典 permeability

Micro-model experiment of three true sandstone models were completed, experiment results showed that Pucheng Sasan reservoir core flooding types are watercourse and network, the forms of residual oil are slick and winding flow, flat waterflood maximum efficiency is high-permeability model, follows by middle-permeability model, low-permeability model worst.

完成了高中低渗三块平面真实砂岩微观水驱油实验，实验结果表明濮城沙三储层岩心驱替类型表现为水道和网状水驱，形成的残余油以油膜和绕流为主，平面水驱效率中渗模型最高，高渗模型次之，低渗模型最差。

According to permeability, associating with pore type, pore throat radium, ratio of pore throat radium, and connectivity of pore throat, the reservoir is divided into two groups: moderate permeability reservoir with moderate pore and small throat and low permeability reservoir. the latter is further classified into three types: moderate pore and small throat reservoir, small pore and unhomogeneous and subtle throat reservoir, and small pore and homogeneous and subtle throat reservoir.

在此基础上，以渗透率为主线，结合孔隙类型、孔喉半径、孔喉半径比以及孔喉连通性等参数，将研究区储层主要划分为中渗透储层和低渗透储层2种基本类型，前者以中渗透中孔细喉道型为主，后者又进一步细分为低渗透中孔细喉道型、低渗透小孔不均匀微细喉道型和低渗透小孔较均匀微细喉道型等3个亚类。

This paper conducts comprehensive and in-depth research on the determination of unsaturated permeability coefficient and water-air flow during ponding infiltration by experiment research and theory research. The research is reduced as the following:(1) In this paper, in terms of the shortage of the current apparatus of water permeability for unsaturated soils, the new unsaturated steady seepage apparatus for measurements of unsaturated permeability coefficient has been developed based on improvement and amendment on original apparatus.

主要研究成果如下：(1)本文从非饱和土渗透特性研究的需要出发，针对目前研制的非饱和土渗透仪的不足，根据非饱和土稳态渗流试验装置量测非饱和渗透系数的主要特点及存在的问题，提出了新型非饱和土稳态渗流试验装置研制开发的整体思路，完成了重要内容的研制。

The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.

研究结果表明：三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方&晶胞&构成； X ， Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状，也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素；当 X ， Y 和 Z 3个方向纤维束直径的比例关系一定时，不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同；复合材料的最终致密度一定；比渗透率随纤维束直径增大而略有增大。

Based on the Darcys law, the theoretical model of permeability measurement was established. And the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details. It was found that the permeability of fibrous reinforcement mainly lied on the preform architecture.

文中首先根据达西定律建立了渗透率测量的理论模型，深入研究了不同的测试方法及主要工艺参数(纤维织物织构、纤维体积含量、充模压力、流动速度、树脂粘度)对渗透特性的影响规律，发现多孔介质增强材料的渗透率主要取决于纤维织物的结构形式，预成型体孔隙分布及其体积分数、压实性对渗透率有较大的影响，提高充模压力和流动速度可以缩短充模时间，在一定程度上可以提高渗透率。

PerMeability of Masson pine wood and the relationship between perMeability and water transfer during high teMperature drying were studied and discussed in this paper,a conclusion was Made that perMeability of wood has a very big effect on water transfer above fiber saturation point and less effect on water transfer under fiber saturation during high teMperature drying.

对马尾松木材的横向渗透性进行了测量，讨论了马尾松木材的渗透性与高温干燥中水分迁移的关系，认为在高温干燥过程中，纤维饱和点以上木材的渗透性对干燥过程中水分迁移速度的影响最大，纤维饱和点以下木材的渗透性对干燥过程中水分迁移速度的影响较小。

During the fracturing for low pressure and low permeability gas reservoirs, there are some main problems in conventional hydroxypropylguar - organic boron cross-linking system: Firstly, the water-lock damage to low pressure and low permeability gas formations by filter liquor; Secondly, the reason for alkali-sensitive damage in alkali-sensitive reservoirs is that conventional hydroxypropylguar - organic boron cross-linking fracturing fluids were cross-linked under alkaline environment, while the permeability of reservoirs is reduced greatly; Thirdly, the formation pressure is low, and the energy of flow back is not enough, at present, the main measure in oil fields is "injecting with liquid nitrogen", but this technique increased the cost of fracturing, making great troubles in operating, and leaving the liquid nitrogen also is a big problem.

在低压低渗透气藏的压裂改造过程中，常规羟丙基胍胶-有机硼交联压裂液体系存在的主要问题，一是压裂液滤液对低压低渗透气层造成的水锁损害；二是常规羟丙基胍胶-有机硼压裂液是在碱性条件下交联的，对碱敏性储层造成碱敏损害，降低储层渗流能力；三是地层压力低，压裂液返排能量不足，当前各油田采取的措施主要是&液氮伴注&技术，但是&液氮伴注&技术增加了压裂的费用，而且液氮存放也存在较大问题。

The results showed that the data of permeability were improved dramatically. Higher temperature could obviously promote the permeability of wood. The effects of steam-treated time on the permeability was slightly different.

结果表明：汽蒸处理后木材的径向和弦向、心材和边材的渗透性都有不同程度的提高，随着汽蒸处理温度的提高木材气体渗透性有较大提高，汽蒸处理时间对不同木材渗透性的影响有所不同。

In this paper, the main question to be solved is the method of permeability testing of soil cement, and finding the quantitative relation between permeability coefficient and cement content, and the relation between permeability of enforcement soil cement and fiber.

通过对多组水泥土和加筋水泥土试块进行的抗渗试验以及对试验结果的分析，得出下面的结论： 1。

Using RFPA2D-Flow stereo-gasses coupled system to simulate the process of gas draiange in lower air permeability coal seam by loose blasting,it interprets that loose blasting is a effective ways to increase air permeability in low air permeability coal seam .

运用RFPA2D-Flow固气耦合系统模拟了松动爆破抽放低透气性煤层内瓦斯的过程，解释了爆破松动是增加低透气性煤层透气性的有效途径，本文对松动爆破前后抽放过程中煤层内瓦斯压力和瓦斯渗流场的变化规律进行了数值模拟对比，为进一步理解瓦斯抽放、松动爆破增透机理等提供理论基础和科学依据。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。