查询词典 porous

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标，在系统调研国内外文献、深入分析国内外研究现状的基础上，综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识，完成了以下研究工作并取得相应的研究成果；①通过对大量的资料调研，分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝，采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型，该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上，根据水溶性气藏数值模型编制了该数值模型的求解程序，该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响，发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响，地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性，在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性，发现在使用实验数据对水溶性气藏进行模拟时，模拟器可以很好的反映气藏开发的状态。

Then it is firstly and systematically presented the layered compressible data of borehole extensometer in Changzhou area from 1984 to 2002 in this paper. Based on the Characteristics of Aquifer system and properties of soil layers, the porous soil layer in the research area is divided into four different compressible layers.

中文摘要：系统分析了常州地区地下水开采动态和地面沉降发生发展历史，概述了研究区地面沉降的框架，在此基础上，系统研究了常州市分层标从1984 年至2002 年的分层沉降资料。

In this paper are described first the differential equation and finite element formula for fluid migration under the action of crust stress in a porous rock.

摘 要：首先叙述了地应力作用下空隙弹性介质中流体运移的基本方程及由基本方程推导的有限元公式。

The SEM revealed that the size of silica particles became smaller and silica films got more porous and fleecy.

扫描电镜照片也表明，组成多孔氧化硅薄膜的颗粒在占空比增大时变得细腻并且薄膜整体变得蓬松多孔。

Porous TiO2 nanostructures, well-adhered to Ti foil surfaces, were formed at 80℃in 10 min, and then flower-like and rod nanostructures formed in succession after a longer reaction time.

在80℃下反应10 min得到了和Ti片黏附较好的多孔纳米结构，延长反应时间先后得到了类花状和类棒状纳米结构。

It is shown that the porous particles are less energyconsuming to fluidize and, with their contents varying from 5%～25% in the riser, the minimum fluidization velocities based on gas stream are from 0.87×10-3 m/s to 2.2×10-3 m/s, while the critical transport velocities are from 1.0×10-2 m/s to 1.6×10-2 m/s for the operation with no liquid circulation or from 5.2×10-3 m/s to 7.1×10-3 m/s for the condition with liquid circulation.

例如，流化床电极、造粒、砂滤、结晶、浮选、聚合、煤气化、费-托合成[1]等。废水处理中三相流化床的应用得益于生物工程中的生物膜法和化工操作中的流态化技术的成功结合，主要优点为宏观混合程度高，固相内扩散阻力低，液体和固体外部传质阻力小，微生物浓度高。

A porous media model is introduced for a description of foam silicone rubber .

泡沫硅橡胶是一种典型的多孔材料，同时它的本构行为也呈现超弹性力学性质。

The results show that the optimal amount of foamer is 0.5 wt％and thisporous material has excellent porous structure, that is, interconnected and uniformlydistributed pores with the diameter of pores ranging from about 100μm to 700μm.

结果发现：发泡剂的最佳比例为0.5 wt％，多孔n-HA／PA6材料具有与松质骨相似的多孔结构，孔径为100～700μm，孔的贯通性好，孔隙率可通过调节工艺参数进行控制，最高可达到88.6％；总孔隙率相近的情况下，n-HA含量高的多孔材料的压缩强度较高；孔隙率在58～88％范围内，多孔材料的抗压强度在1.1～15.6MPa，与人松质骨的抗压强度相当。

The performances of the porous material and the optimal amount of foamer wereinvestigated.

本研究还采用注塑成型方式制备了多孔纳米羟基磷灰石／聚酰胺6(n-HA／PA6)复合材料，考察了发泡剂的用量及多孔材料性能。

Based on the mechanisms of foam flow in porous media, a new parameter of foam comprehensive value was employed to evaluate foamers, which denoted the comprehensive characteristic of foamer's foaming ability and stability.

论文根据氮气泡沫渗流机理，提出将反映起泡剂起泡能力和稳定性的综合性能的泡沫综合值作为主要参数，用于氮气泡沫调驱用起泡剂的筛选。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐