Martin E. Chenevert, Said Al-AbriUniversity of Texas at AustinAustin Liang JinStim-Labs Inc.Duncan, Okla. New equipment and test procedures can determine dynamic mud cake properties such as equilibrium cake thickness, porosity, permeability, compressibility, and erosion resistance. The following were developed to study dynamic filtration: a dynamic filtration cell; a recommended filtration medium; a mud cake thickness device; mud cake porosity determination method; calculation methods for shear rate determination beneath a rotating cone; determination of equilibrium cake thickness, erosion resistance, and compressibility; and prefer...

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