PMN基电致伸缩材料

试验以ＰＭＮ 基弛豫铁电体为基础,通过掺杂和优化工艺,研制出性能优异的电致伸缩材料（１ －ｙ）［（１ － ｘ）ＰＭＮ－ ｘＰＴ］－ ｙＷＯ３ ,分析讨论了掺杂改性对材料性能的影响。进一步阐明材料宏观性能与微观结构之间的关系。     

含CO体系在载铜吸附剂上吸附动态性能(1)——实验研究

采用动态法测定了含ＣＯ、ＣＯ２ 、ＣＨ４ 的单组分、二元、三元混合气体在负载铜吸附剂上的吸附动态数据,并对其传质机理作了定性分析,阐明了该体系的吸附动态特性,为动态模型的开发和吸附过程的设计提供了依据。     

REFLECTION OF OBLIQUE INCIDENT WAVES BY PERFORATED CAISSONS WITH TRAVERSE WALL

The interaction of oblique incident waves with infinite number of perforated caissons is investigated. The fluid domain is divided into infinite sub-domains by the caissons, and eigen-function expansion is applied to expand velocity potentials in each domain. A phase relation is introduced for wave oscillation in each caisson, and the structure geometry is considered in constructing the models of reflection waves. The reflected waves with the present analysis include all of the waves traveling in different directions when incident wave period is short. Numerical examinations show that velocities at the inner and outer sides of the front walls of caissons are close to each other, and reflection coefficients satisfy the energy conservation relation very well when porous effect parameter is infinite. Numerical results show that the reflection coefficients of oblique incident waves are smaller for shorter caissons at low frequency, and decrease with the increase of wave incident angle.     

RESEARCH ON SYSTEM DYNAMICS MODEL OF CONVEYANCE CAPACITY IN SYMMETRIC COMPOUND CHANNELS

Stage-discharge curves are particularly important in river basin management. For a compound channel, the stage-discharge curve is often difficult to be extrapolated to yield estimates of level for a given frequency of flow. By analyzing a large number of experimental data from Science and Engineering Research Council Flood Channel Facility (SERCFCF) and applying system dynamics method, the authors established system dynamics model of conveyance capacity when rivers flow in an overbank mode, spilling onto the adjoining flood plain. The model was applied to a compound channel. And the corresponding simulated results are shown to attain high accurcy.     

PRESSURE CORRECTION METHOD ON UNSTRUCTURED GRIDS

In this paper, an unstructured, collocated finite volume method for solving the Navier-Stokes equations was developed by virtue of auxiliary points. The derivatives were determined by the Gauss theorem. The proposed method could provide control volumes with arbitrary geometry and preserve the second order accuracy even if highly distorted grids are used. Although arbitrary number of cell faces can be used, the hybrid quadrilateral/triangular grids are more desirable for the simplicity of implementation and applications to engineering problems. The pressure-velocity coupling was treated using a SIMPLE-like algorithm. The Generalized Minimum Residual (GMRES) method with the Incomplete LU (ILU) preconditioner was used to solve linear equations. Four test cases were studied for validating the proposed method. In using this method, grid quality is not important. Thus, engineers can pay mostly attention to physical mechanism of problems. Turbulence models can be simply integrated and the method can be straightforwardly extended to treat three-dimensional problems.     

基于FLUENT的支撑剂裂缝内输送沉降模拟

根据水力压裂中的支撑剂缝内输送沉降模型,利用计算机流体动力学软件FLUENT对支撑剂在裂缝内的输送沉降进行数值模拟。得到了支撑剂的速度和浓度分布情况,以及支撑剂颗粒轨迹图,表明了支撑剂在输送过程中初始速度较快,随着时间的延续,速度便逐渐接近平衡状态;近井眼及裂缝底部的区域浓度较高,且在水平方向上支撑剂浓度越来越小;整个输送过程中,支撑剂黏度是不断降低的。模拟结果为水力压裂施工中支撑剂在裂缝中的输送沉降提供了一定的参考。     

抽汲井液面恢复解释软件的功能特点及应用

相比现有的许多试井解释软件而言,抽汲井液面恢复解释软件(简称SWLRIS)可利用实测压力数据进行资料解释,也可利用动液面数据进行资料解释。由此,试井测试时既不需要下压力计到井底而进行施工,也不需要停产进行压力恢复,仅需要在井口安置一套超声波液面检测仪即可。通过介绍SWLRIS软件的流程、界面、功能及特点,经过对克拉玛依油田十余口井层的解释分析表明,该软件解释的结果与Saphir软件用实测压力解释的结果基本一致,应用效果良好。     

适用地震技术优化组合在伊通盆地的实践与认识

伊通盆地是吉林油田近十年来勘探并初现储量规模的复杂性断凹盆地,其中构造解释和砂砾岩储层预测一直是攻关的难点。在探索适合伊通盆地地震资料解释的过程中,在已有的多种适用地震技术中,通过对这些技术的优化与组合,利用瞬时相位属性技术实现了盆地目的层底砾岩与基底花岗岩的识别;利用时间切片与三维可视化技术的结合实现了盆地老资料有效的构造解释;通过地震属性分析技术与波阻抗反演技术的结合实现了岩性圈闭的有效识别。     

精细油藏建模中的不同时序测井资料处理技术——以马岭油田南一区直3~2、直5油藏为例

马岭油田南一区直3~2、直5油藏经历了近13年的注水开发,储层物性、微观孔隙结构和非均质性发生动态变化,造成对反映和记录地下储层真实性变化特征的测井曲线发生相应的变化,如果拿这些已经失真的测井曲线来进行精细油藏建模中是不准确的。因此,要得到反应油藏原始地质状况的地质模型,必须把不同时序的测井曲线校正到油藏最原始状态,由此建立的地质模型才更加准确。本文主要介绍通过新老井测井曲线叠合对比法对测井曲线进行校正。     

亚硫酸化技术在制备皮革加脂剂中的应用

本文总结了亚硫酸化技术在制备皮革加脂剂中的应用,介绍了亚硫酸化技术的原理及制备实例,并对亚硫酸化技术的应用前景进行了展望。