AN EXPERIMENTAL-STUDY OF THE UPWELLING RESPONSE OF STRATIFIED RESERVOIRS TO SURFACE SHEAR-STRESS
AN EXPERIMENTAL-STUDY OF THE UPWELLING RESPONSE OF STRATIFIED RESERVOIRS TO SURFACE SHEAR-STRESS
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DOI：
10.1017/s0022112086001507
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发表时间：
1986-10-01
影响因子：
3.7
通讯作者：
MONISMITH, S
中科院分区：
文献类型：
--
作者：
MONISMITH, S
对非旋转层状油藏在地表剪应力作用下的动态响应进行了实验研究。实验使用双层和线性分层；使用移动带向流体提供剪应力。密度场的详细测量表明，在韦德伯恩数W的所有值都会发生上升流，而不是只在W<；1时才发生。两层理论与目前的观测结果之间的差异归因于实验层结是连续的，而不是分层的。剪切流弥散被观察到是将局部上升流的影响分布到整个混合层长度的重要机制。提出了一个基于上升流和切变扩散的混合层加深模型，并与本文和其他实验研究的结果进行了比较。
An experimental study of the dynamic response of non-rotating, stratified reservoirs to the application of surface shear stresses is presented. The experiments were made using two-layered and linear stratifications; a moving belt was used to supply a shear stress to the fluid. Detailed measurements of the density field show that upwelling occurs at all values of the Wedderburn number, W, rather than only occurring when W < 1. Differences between the two-layer theory and the present observations are attributed to the fact that the experimental stratifications were continuous, rather than layered. Shearflow dispersion is observed to be an important mechanism for distributing the effects of localized upwelling over the entire length of the mixed layer. A model of mixed-layer deepening based on upwelling and shearflow dispersion is presented and is compared to the observations of this and other experimental studies.