Investigation of Optimum Polymerization Conditions for Synthesis of Cross-Linked Polyacrylamide-Amphoteric Surfmer Nanocomposites for Polymer Flooding in Sandstone Reservoirs

Table 14

Secondary and tertiary recovery factors during flooding process.

injected, cc	recovered by PM and SM, cc	remain, cc	Recovered oil by TM, cc		RFPM+SM, %OOIP	RFTM, %OOIP		RFTotal, %OOIP		Remaining oil, %OOIP
420.0	238.0	182.0	87.3^(a)	109.1^(b)	56.7	20.8^(a)	26.0^(b)	77.5^(a)	82.7^(b)	22.5^(a)	17.3^(b)

^(a)HAPAM copolymer.
^(b)HAPAM-SiO₂ copolymer.