The permeability, porosity and thickness of mudcakes formed under dynamic filtration were studied with HTHP dynamic flowmeter.

用高温高压动态流动装置对泥浆动失水下形成的泥饼的渗透率、孔隙度及泥饼厚度的影响因素进行了研究。

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And a number of runs were used to study the dynamic characteristics of porosity and permeability changes caused by the migration of external particles and in situ fines.

利用数值运算的结果研究了由油层内部微粒，外部微粒共存时孔隙度和渗透率变化的动态特征。

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