Nuclear magnetic resonance experiments on foam flooding and evaluation of foam dynamic stability

Jingnan ZHANG,Qinfeng DI,Shuai HUA,Feng YE,Yuan LI,Wenchang WANG

Table 4 Foam resistance factors.

Core No. Pressure difference of water flooding/MPa Pressure difference of foam flooding/MPa Resistance factor 1# 0.009 1.24 137.78 2# 0.010 1.58 158.00 3# 0.010 2.04 204.00 4# 0.010 2.16 216.00