Preparation and Performance of an Adsorption Type Gel Plugging Agent as Enhanced Oil Recovery Chemical

Figure 5

Salt tolerance ((a) NaCl and (b) CaCl₂) of ATGPA and AAGPA (0.6 wt%) at 65°C. The apparent viscosity of these plugging agents was measured by Brookfield DV-3 viscometer at 7.34 s⁻¹.

(a)

(b)