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Improved oil recovery in nanopores: NanoIOR.


ABSTRACT: Fluid flow through minerals pores occurs in underground aquifers, oil and shale gas reservoirs. In this work, we explore water and oil flow through silica nanopores. Our objective is to model the displacement of water and oil through a nanopore to mimic the fluid infiltration on geological nanoporous media and the displacement of oil with and without previous contact with water by water flooding to emulate an improved oil recovery process at nanoscale (NanoIOR). We have observed a barrier-less infiltration of water and oil on the empty (vacuum) simulated 4?nm diameter nanopores. For the water displacement with oil, we have obtained a critical pressure of 600?atm for the oil infiltration, and after the flow was steady, a water layer was still adsorbed to the surface, thus, hindering the direct contact of the oil with the surface. In addition, oil displacement with water was assessed, with and without an adsorbed water layer (AWL). Without the AWL, the pressure needed for oil infiltration was 5000?atm, whereas, with the AWL the infiltration was observed for pressures as low as 10?atm. Hence, the infiltration is greatly affected by the AWL, significantly lowering the critical pressure for oil displacement.

SUBMITTER: de Almeida JM 

PROVIDER: S-EPMC4913300 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Improved oil recovery in nanopores: NanoIOR.

de Almeida James Moraes JM   Miranda Caetano Rodrigues CR  

Scientific reports 20160620


Fluid flow through minerals pores occurs in underground aquifers, oil and shale gas reservoirs. In this work, we explore water and oil flow through silica nanopores. Our objective is to model the displacement of water and oil through a nanopore to mimic the fluid infiltration on geological nanoporous media and the displacement of oil with and without previous contact with water by water flooding to emulate an improved oil recovery process at nanoscale (NanoIOR). We have observed a barrier-less i  ...[more]

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