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首页> 外文期刊>Journal of Mining Scinece >The physical and numerical modeling of sand production and gravel pack in oil wells by designing and manufacturing the machine and presenting a relation estimating sand production rate
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The physical and numerical modeling of sand production and gravel pack in oil wells by designing and manufacturing the machine and presenting a relation estimating sand production rate

机译：用机器设计和制造砂井砂井和砾石包装的物理学和数值模型，呈现与析出砂生产率

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This research studies the effect of gravel pack size on sand production by designing and manufacturing a machine and a numerical model to simulate sand and gravel pack. This machine and the numerical model make it possible to test different rock along with various fluids under different stress in order to simulate the production of sand and gravel pack.PFC3D software is applied to create this numerical model. The numerical model consists of sand from 0.22 to 1.1 mm and gravel pack from 3.5 to 4.76, 4.76 to 9.9 to 12.6 and 12.6 to 16.8 mm and the physical model holds gravel from 9 to 4.76 and 4.76 to 9.25. The results from modeling demonstrated that sand is produced the least in the numerical model using gravel from 3.5 to4.76 mm and sand is produced less in the physical model containing gravel pack ranging from 4.76 to 9 mm and the fluid left more output discharge. Moreover, the outcomes from physical modeling proved that as time drags on, the fluid production rate got reduced and then reached to a fixed amount after placing gravel pack. So, it is suggested that gravel pack from 9mm to 4.76mm is more suitable from the viewpoints of fluid production rate and prevention of sand production. Based on dimensional analysis and the results from numerical modeling in a condition without gravel pack, a relation is concluded to estimate sand production rate.
机译：本研究通过设计和制造机器和模拟沙子和砾石包装的数值模型来研究砾石包装尺寸对砂生产的影响。该机器和数值模型使得可以在不同的压力下与各种流体进行测试，以模拟砂和砾石包的生产.PFC3D软件以创建该数值模型。数值模型由0.22至1.1毫米的沙子组成，砾石包装为3.5至4.76，4.76至9.9至12.6和12.6至16.8毫米，物理模型将砾石夹住9至4.76和4.76至9.25。模型的结果表明，使用3.5至4.76 mm的砾石在数值模型中产生的砂在含有4.76至9mm的砾石包装的物理模型中产生砂，并且流体留下更多的输出放电。此外，物理建模的结果证明，随着时间的推移，流体生产速率降低，然后在放置砾石包装后达到固定量。因此，建议从9mm到4.76mm的砾石包从流体生产速率和防止砂生产的观点来看更适合。基于尺寸分析和在没有砾石包装的情况下的数值模型的结果，结论了估计砂生产率的关系。

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