شماره ركورد كنفرانس :
4518
عنوان مقاله :
Disproportional Permeability Reduction behavior of Hydrogels
Author/Authors :
Ahmad Dadvand Koohi Chemical Engineering Department- Guilan University, Rasht , Mohsen Vafaie Seftie Chemical Engineering Department- Tarbiat Modares University, Tehran , Abdolsamad Zarrin Ghalam Chemical Engineering Department- Tarbiat Modares University, Tehran , Asefe Mousavi Moghadam Chemical Engineering Department- Tarbiat Modares University, Tehran , Hasan Naderi Chemical Engineering Department- Tarbiat Modares University, Tehran
كليدواژه :
Residual Resistance Factor , Dehydration , Coreflood , Hydrogels
چكيده لاتين :
The use of gelling system as a diverting and/or blocking agent is widely practiced today to
improve production of oil and gas. A hydrogel was prepared by crosslinking of aqueous solutions
of sulfonated polyacrylamide/chromium triacetate for use in water shut off operations. The effects
of salinity, injection time and flow rate on residual resistance factor (Frr) were investigated.
Results showed that oil permeability increased as injection time increased. The results also
indicated that the effect of gel treatment increased with decreasing of the injection rate. However,
when the sand packed was water flooded by formation water, Frrw was decreased by about 49%.
According to the results, Disproportionate Permeability Reduction (DPR) was the phenomena that
indicated the gel swelling versus injected water and dehydration versus injected oil.
