摘要
采用拉格朗日方法,通过描述微粒的运动轨迹,研究了多分散悬浮固体微粒向孔道表面沉积的微观动力学特征,给出了五种不同沉积方式的判定条件,通过对流场的修正,得到了微粒液度的宏观变化与局部沉积特性之间的关系。
The Lagrangian method is used to describe the trajectories of multidispersed suspended particles moving near a spherical collector and to study the microscopic hydrodynamic depositional properties of the particles. The judgement conditions for five different depositional patterns are given. Through the correction for the flow field, the relationship between the microscopic change of the particle concentration and the local depositional properties is obtained.
出处
《西南石油学院学报》
CAS
CSCD
1992年第2期63-70,共8页
Journal of Southwest Petroleum Institute
关键词
悬浮颗粒
微粒堵塞
地层损害
Suspended particle
Particle plugging
Formation damage
Dynamies
Hydrodynamics in porous media
