Open AccessAlteration wettability of carbonate rocks by Nano fluids and comparison with PEG and SDS
Author(s) -
Rana R. Jalil,
Hussein Qasim Hussein
Publication year - 2020
Publication title -
mağallaẗ al-buḥūṯ wa-al-dirāsāt al-nafṭiyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2710-1096
pISSN - 2220-5381
DOI - 10.52716/jprs.v10i4.367
Subject(s) - nanofluid , pulmonary surfactant , sodium dodecyl sulfate , enhanced oil recovery , polyethylene glycol , peg ratio , wetting , chemical engineering , polymer , carbonate , chemistry , zeta potential , sodium carbonate , nanoparticle , chromatography , materials science , sodium , organic chemistry , finance , engineering , economics
This work was conducted to study limestone rock wettability alteration to enhance oil recovery by flooding using different Nano silica (NS) sizes suspended in saline water and compared with flooding solution of polyethylene glycol (PEG) polymer and sodium dodecyl sulfate (SDS) surfactant, the stability of nanofluids measured by zeta potential. In the flooding system, the secondary recovery by silica nanofluids (0.01 wt. % NS concentration) achieved an oil recovery of 35vol. % and 26.08 vol. % for 10, 52 nm after primary recovery respectively, while PEG polymer and SDS surfactant achieved oil recovery of 5 vol. % and 10 vol. % only respectively. The stability of pressure difference approved that silica nanoparticle never causes any plug or damage for the carbonate rocks