Publicado 12 números por año
ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508
Indexed in
QUANTIFICATION OF THE MICROPOROSITY EFFECT ON PERMEABILITY OF POROUS ROCKS
SINOPSIS
The contributions of microporosity (φmicro) and micropermeability (kmicro) to the total (Darcy) permeability (k) were estimated for limestones from Sierra de Chiapas region. To achieve this purpose, microporosity (φmicro) was measured using scanning electron microscopy (SEM) image analysis and compared to experimental permeability. Moreover, kmicro was estimated using the modified Kozeny−Carman equation, whose parameters were also determined from SEM image analysis of the porous network. The obtained equations that establish the correlations kmicro-k and φmicro-k were in excellent agreement with experimental permeabilities, demonstrating their efficacies. Besides, the importance of the use of SEM as complementary tool for the analysis of small pores was demonstrated.
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