Abdolmohsen Shabib-Asl
Chemical and Petroleum Engineering Department, University of Calgary, Canada
Title: Combined Low Salinity Water injection and Foam flooding in Sandstone reservoir Rock: A New Hybrid EOR
Biography
Biography: Abdolmohsen Shabib-Asl
Abstract
To date, several methods have been designed and implemented either individually or as combination in order to increase oil recovery. The combined methods also called hybrid EOR pose great challenges in the oil and gas industry. This is also confirmed from the ITF’s GCC Technology Roadmap that pinpointed hybrid EOR as the top challenge.
The ultimate goal of this work is to investigate the potential of a new hybrid EOR method termed Low Salinity Water Assisted Foam flooding (LSWAF). Typically, it consists of injecting Low Salinity Water (LSW) followed by an alternated injection of a Surfactant Aqueous Solution (SAS) and CO2 gas. Tests were carried out by using two types of light crude oil with different TAN and TBN, namely Crude oil A and B. In terms of changes in wettability, for both crude oils A and B, the experimental results revealed that much changes were experienced by the LSW of KCl composition. The changes with crude oil B were greater than crude oil A. However, for crude oil A and B, the core flooding experiments showed that the highest residual oil recovery was achieved by the LSWAF of KCl composition (87.45% of OOIP) compared to the MgCl2 and FW.