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Journal of Porous Media
IF: 1.49 5-Year IF: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Print: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.2019028572
pages 1-9

QUANTIFICATION OF THE MICROPOROSITY EFFECT ON PERMEABILITY OF POROUS ROCKS

Ismeli Alfonso
Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Campus Morelia UNAM, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, México
Mohamed Abatal
Facultad de Ingeniería, Universidad Autónoma del Carmen, Campus III, Avenida Central S/N, Esq. con Fracc. Mundo Maya, C.P. 24115, Ciudad del Carmen, Campeche, México
Iván Castro
Facultad de Ingeniería, Universidad Autónoma del Carmen, Campus III, Avenida Central S/N, Esq. con Fracc. Mundo Maya, C.P. 24115, Ciudad del Carmen, Campeche, México
Alberto Beltrán
Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Campus Morelia UNAM, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, C.P. 58190, Morelia, Michoacán, México
Alejandra Fuentes
Tecnología Aplicada en Exploración y Producción Petrolera, S.A. de C.V. (TEMPLE) Calle 33 Num. 145 2do, Piso Depto, "F", Col. Burócratas, C.P. 24160, Cd. del Carmen, Campeche, México
Armando García
Tecnología Aplicada en Exploración y Producción Petrolera, S.A. de C.V. (TEMPLE) Calle 33 Num. 145 2do, Piso Depto, "F", Col. Burócratas, C.P. 24160, Cd. del Carmen, Campeche, México

ABSTRACT

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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