NUMERICAL SIMULATION OF OIL MIGRATION-ACCUMULATION OF MULTILAYER AND ITS APPLICATION

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压力对燃料滴燃烧速度的影响

实际燃烧装置的喷雾炬内,燃料滴的直径约为几十到几百微米.目前积累的大量有关液滴燃烧的实验资料,大多是用悬挂滴法与多孔球法获得的,所用液滴直径为一到十几毫米,比实际喷雾中的滴径大的多.因而,燃烧过程中自然对流的影响较大,而化学动力学因素的影响较小.研究压力对燃料滴燃烧速度的影响,可以用改变环境介质压力的办法,在宽广的数     

NUMERICAL METHOD AND APPLICATION FOR THREEDIMENSIONAL NONLINEAR SYSTEM OF DYNAMICS OF FLUIDS IN POROUS MEDIA

For the system of multilayer dynamics of fluids in porous media, the second order upwind finite difference fractional steps schemes applicable to parallel arithmetic are put forward. Some techniques, such as calculus of variations, energy method, multiplicative commutation rule of difference operators, decomposition of high order difference operators and prior estimates are adopted. Optimal order estimates are derived to determine the error in the second order approximate solution. These methods have already been applied to the numerical simulation of migration-accumulation of oil resources.     

油资源运移聚集并行数值模拟和分析

多层油资源运移聚集并行数值模拟,其功能是重建油气盆地的运移聚集演化史,对于油资源的评价,确度油藏位置,估计油藏贮量均具有重要的价值.从生产实际出发,提出数学模型,构造大规模精细并行计算的耦合算子分裂隐式迭代格式,设计了并行计算程序和并行计算的信息传递和交替方向网格剖分方法.并对不同的网格步长进行了并行计算和分析.对滩海地区进行精细数值模拟,计算结果在油田位置等方面和实际情况相吻合.对模型问题(非线型性耦合问题)进行数值分析,得到最佳阶L²误差估计,解决了这一计算渗流力学和石油地质的困难问题.     

油水运移聚集数值模拟和分析

油资源的运移聚集数值模拟是描述在盆地发育中油水运移聚集演化的历史,它对于油田的勘探和合理开发有着重要的价值.本文提出问题的数学模型和修正交替方向隐式迭式格式.对于着名的二次运移聚集的水动力学实验(剖面和平面问题),进行了数值模拟,模拟结果和实验结果是完全吻合的.     

Numerical simulation analysis for migration-accumulation of oil and water

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Upwind finite difference method for miscible oil and water displacement problem with moving boundary values

The research of the miscible oil and water displacement problem with moving boundary values is of great value to the history of oil-gas transport and accumulation in the basin evolution as well as to the rational evaluation in prospecting and exploiting oil-gas resources. The mathematical model can be described as a coupled system of nonlinear partial differential equations with moving boundary values. For the twodimensional bounded region, the upwind finite difference schemes are proposed. Some techniques, such as the calculus of variations, the change of variables, and the theory of a priori estimates, are used. The optimal orderl2-norm estimates are derived for the errors in the approximate solutions. The research is important both theoretically and practically for the model analysis in the field, the model numerical method, and the software development.     

非溶剂致相分离法制备PVDF膜影响因素探究

非溶剂致相分离法作为制备聚偏氟乙烯（PVDF）膜一种常用的方法已得到广泛推广,但因影响其成膜因素诸多,至今没有一种较好的协同效果．作者介绍了不同溶剂、聚合物的浓度、添加剂的种类和浓度、凝胶浴的组成和温度、蒸发时间及后处理等制膜条件对膜的影响,以期为优化制膜工艺提供参考．     

Careful numerical simulation and analysis of migration-accumulation of Tanhai Region

Numerical simulation of careful parallel arithmetic of oil resources migration-accumulation of Tanhai Region (three-layer) was done. Careful parallel operator splitting-up implicit iterative scheme, parallel arithmetic program, parallel arithmetic information and alternating-direction mesh subdivision were put forward.Parallel arithmetic and analysis of different CPU combinations were done. This numerical simulation test and the actual conditions are basically coincident. The convergence estimation of the model problem has successfully solved the difficult problem in the fields of permeation fluid mechanics, computational mathematics and petroleum geology.     

Parallel arithmetic numerical simulation and application of secondary migration-accumulation of oil resources

From such actual conditions as the effects of characteristics of miltilayer petroleum geology and permeation fluid mechanics, a new numerical model is put forward and coupling splitting-up implicit interactive scheme is formed. For the actual situation of Dongying hollow ( four-layer ) and Tanhai region ( three-layer ) of Shengli Petroleum Field, the numerical simulation test results and the actual conditions are coincident.