A Laboratory Approach to Measure Carbonate Rocks’ Adsorption Density by Surfactant and Polymer

Table 4

Initial and residual values of the surfactant/polymer at ambient temperature and 40°C with a concentration of 10000 ppm.

Test no.	Used material	Initial amount of surfactant + polymer (ppm)	Residual amount of surfactant/polymer (ppm) at 25°C	Adsorption density of surfactant/polymer (mg/g) at 25°C	Residual amount of surfactant/polymer (ppm) at 40°C	Adsorption density of surfactant/polymer (mg/g) at 40°C
1	S	450	285	3.30	297.60	3.048
2	P	1300	1154	2.92	1167	2.660
3	S + P	875	757	2.36	765	2.200

S : surfactant and P : polymer.