ALKALINE FLOODING IN LOW ACID NUMBER CRUDE OIL

• Main Author: JAMALUDIN, MUHAMMAD AIMAN
• Format: Final Year Project
• Language: English
• Published: 2011
• Subjects: T Technology (General)
• Online Access: http://utpedia.utp.edu.my/id/eprint/27403/1/Dissertation_FYP2_AIMAN%2810022%29.pdf; http://utpedia.utp.edu.my/id/eprint/27403/

Alkaline flooding is the earliest chemical flooding method reported. Its usage was in the beginning limited to reservoirs with high acid numbers because of the assumption that recovery is due to in situ surfactant that is formed from alkali-acidic components reactions. Alkaline flooding while succeeded in increasing microscopic sweep did not reduce the mobility ratio. Consequently, the macroscopic sweep was not improved. Later work proved that improvement in recovery was not dependent on high acid number. This work aims to relate the increase in recovery by alkaline flooding due to end-points relative permeability changes and formation of IFT reducing components that do not depend on acids.