• M.J.A. prince
• Abhinav Gupta

The research work is carried on investigating for suitable concentration of SDS (sodium dodecyle sulphonate) to enhance the efficiency of oil recovery for limestone cores. The objective of this work is to alter wettability for carbonate reservoir by conducting core flooding operation through the application of SDS. Carbonate reservoirs under-going water flooding, only limited amounts of oil can be recovered from oil-wet layers because the water tends to flow mainly through the water-wet layers. In fact, recovery factors can be less than 10%. The work has carried by injecting water, oil and surfactant simultaneously for adsorption onto pores. Wettability was observed by constructing relative permeability graphs for all fluids applied. Successful alteration had been reported by SDS and recovery has been enhanced to 90%.

wettability, EOR chemistry, Surfactant concentration, sodium dodecyle sulhonate

"Wettability alteration on Limestone cores as a Chemical Enhanced Oil Recovery application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.750-756, July-2018, Available :http://www.jetir.org/papers/JETIR1807121.pdf

"Wettability alteration on Limestone cores as a Chemical Enhanced Oil Recovery application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp750-756, July-2018, Available at : http://www.jetir.org/papers/JETIR1807121.pdf