Conference Proceedings

Ion tuned water can greatly enhance alteration of carbonate surface to water-wet

H Ding, S Mettu, RR Dagastine, SH Rahman

Proceedings of the 6th Unconventional Resources Technology Conference | AAPG | Published : 2018

Abstract

Copyright 2018, Unconventional Resources Technology Conference (URTeC). In this paper, we aim to investigate the wettability alteration of carbonate rocks by ion tuned waters (ITW). It has been widely accepted that the oil-wet carbonate surface can be altered into water-wet or mix-wet by waters that containing potential determining ions (PDI, Ca2+, Mg2+ and SO42-). However, the underlying reasons are still not well understood. In order to estimate the relative effects of PDI in determining the surface charge and wettability, a systematic experimental study was carried out. Firstly, zeta potential, contact angle and intermolecular forces were measured in four salt solutions (NaCl, MgCl2, CaCl..

View full abstract

University of Melbourne Researchers

Citation metrics