Capillary pressure and relative permeability estimation for low salinity waterflooding processes using pore network models
Por:
Martinez-Mendoza, Edgar G., Diaz-Viera, Martin A., Coronado, Manuel, Mendoza-Rosas, Ana T.
Publicada:
1 ene 2019
Resumen:
In this work, the effect of low salinity waterflooding (LSWF) on capillary pressure and relative permeability is studied at pore scale. For this purpose, a pore-scale model implemented on OpenPNM is developed to describe fluid flow, salinity transport and wettability change in a pore network. The effect is studied by considering high salinity waterflooding followed by low salinity waterflooding. The system wettability change is introduced as modifications of the local contact angle that are induced by the water salinity reduction. These modifications are evaluated by calculating the contact angle change in each pore and throat of the network, and then integrating it. From this analysis, a methodology has been developed to study the LSWF impact on capillary pressure and relative permeability. This methodology has been successfully applied to two pore network cases available in an open rock data base; one network correspond to a sandstone and the other to a carbonate sample. The methodology developed here can be seen as a tool to complement laboratory tests needed to determine the efficiency of LSWF processes. © 2019 Elsevier B.V.
Filiaciones:
Martinez-Mendoza, Edgar G.:
Universidad Nacional Autónoma de México, Ciudad de México, Mexico
Univ Nacl Autonoma Mexico, Ciudad De Mexico, Mexico
Diaz-Viera, Martin A.:
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, Ciudad de México, 07730, Mexico
Inst Mexican Pet, Eje Cent Lazaro Cardenas 152, Ciudad De Mexico 07730, Mexico
Coronado, Manuel:
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, Ciudad de México, 07730, Mexico
Inst Mexican Pet, Eje Cent Lazaro Cardenas 152, Ciudad De Mexico 07730, Mexico
Mendoza-Rosas, Ana T.:
CONACYT-Centro de Ingeniería y Desarrollo Industrial, Av. Playa Pie de la Cuesta 702, Querétaro, 76125, Mexico
CONACYT Ctr Ingn & Desarrollo Ind, Av Playa Pie de la Cuesta 702, Queretaro 76125, Mexico
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