| 构造应力作用下流体运动的动力学分析——构造流体动力学 |
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| 关键词:structure stress stress field fluid movement oil migration model |
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| The Influence of Structure Stress on Fluid Movement ——Structure Fluid Dynamics |
| ln this paper, the influence of structure stress field on fluid movement is discussed. In the theoretical aspect, the 3-dimensional dynamic equations of fluid under structuer stresses are derived on the basis of the knowledge of fluid mechanics, mechanics of fluid in porous media and elastic mechanics.By means of numerical models, effect of stresses on oil migration in an oil field is analyzed.A 3-dimensioned unsteady model for this area is established on the basis of knowledge on this region.The specific work and results are as follows: (1)The dynamic equation of fluid movement under 3-dimension is derived. It shows that the state of stress is an important factor affecting fluid movement. (2)The modeling results of an example of oil area show that the effect of topography on oil accumulation is dominant if the function of stress is not considered.It is evidently not in agreement with the actual results of exploration. If the role of stress is considered,the oil accumulation will concentrated near the faults. This is consistent with the present state of exploration in the oil area as well as other oil field area. It demonstrates the significance of effect of stress on oil migration. fluid movement is a complicated process, on which many factors may affect it besides the structure stress field.Single factors have been considered in this study with aim to explain effect of stress on fluid movement from physical mechanism. |
| SUN Xiong,HONG Han-jing,MA Zong-jin.1998.The Influence of Structure Stress on Fluid Movement ——Structure Fluid Dynamics[J].Acta Geoscientica Sinica,19(1):150-157. |
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