摘要
通过声学、流体力学、机械振动及油层物理学等相关知识,建立了声波在粘性媒质中的一维波动方程,并求出其理论解。在此基础上编制相关软件,模拟出了声波在多孔介质中随着振动频率、流体粘度、岩石孔隙度和渗透率等参数变化时的传播深度,得出声波在地层内渗入深度随着振动频率、流体粘度和岩石孔隙度的增加而减小,随着岩石渗透率的增加而增大的结论。
A 1-D equation for acoustic wave propagation in viscous medium was established based on some basic subjects such as acoustics, fluid dynamics, mechanical vibration and reservoir physics and so on, by use of which theoretical solution was obtained. Acoustic propagation distances in porous medium were simulated by means of calculation program and some conclusions properly were drawn that acoustic propagation distances were decreased with vibration frequency, fluid viscosity and rock porosity but increased with rock permeability.
出处
《石油矿场机械》
2009年第4期1-7,共7页
Oil Field Equipment
基金
国家高新技术研究发展计划(863计划)"声波防蜡降粘及解堵增产技术研究"(2006AA092342)的部分研究成果
关键词
声波采油
数学模型
多孔介质
传播距离
acoustic oil production
mathematical model
porous medium
propagation distance
