Abstract
When Caspian seawater is injected into the Uzen field reservoir, the temperature of the reservoir oil can be lowered 10/sup 0/ to 20/sup 0/C below initial reservoir temperature. Because Uzen crude oil is saturated with paraffin, the cold injection water can deposit paraffin in the formation and reduce oil recovery. In a related study, it was shown that the lower temperature should not adversely affect capillary and wettability behavior of the crude oil in the reservoir. Oil recovery was found to be essentially independent of water composition. However, fresh water is easier to handle in injection systems than brines. Several studies have shown that oil recovery from Uzen field should be increased by use of hot injection water. Various methods of heating the water are discussed. To reduce corrosivity and scaling of hot brine, sodium hexametaphosphate is added in concentrations of 2 to 15 mg/liter. It is concluded that it would be practical to use hot injection water in this field.
Citation Formats
Kovalev, A G, Lyutin, L V, and Perevalov, V G.
Problems in waterflooding fields containing paraffinic crude oils.
USSR: N. p.,
1968.
Web.
Kovalev, A G, Lyutin, L V, & Perevalov, V G.
Problems in waterflooding fields containing paraffinic crude oils.
USSR.
Kovalev, A G, Lyutin, L V, and Perevalov, V G.
1968.
"Problems in waterflooding fields containing paraffinic crude oils."
USSR.
@misc{etde_5602810,
title = {Problems in waterflooding fields containing paraffinic crude oils}
author = {Kovalev, A G, Lyutin, L V, and Perevalov, V G}
abstractNote = {When Caspian seawater is injected into the Uzen field reservoir, the temperature of the reservoir oil can be lowered 10/sup 0/ to 20/sup 0/C below initial reservoir temperature. Because Uzen crude oil is saturated with paraffin, the cold injection water can deposit paraffin in the formation and reduce oil recovery. In a related study, it was shown that the lower temperature should not adversely affect capillary and wettability behavior of the crude oil in the reservoir. Oil recovery was found to be essentially independent of water composition. However, fresh water is easier to handle in injection systems than brines. Several studies have shown that oil recovery from Uzen field should be increased by use of hot injection water. Various methods of heating the water are discussed. To reduce corrosivity and scaling of hot brine, sodium hexametaphosphate is added in concentrations of 2 to 15 mg/liter. It is concluded that it would be practical to use hot injection water in this field.}
journal = []
volume = {No. 1968:11}
journal type = {AC}
place = {USSR}
year = {1968}
month = {Nov}
}
title = {Problems in waterflooding fields containing paraffinic crude oils}
author = {Kovalev, A G, Lyutin, L V, and Perevalov, V G}
abstractNote = {When Caspian seawater is injected into the Uzen field reservoir, the temperature of the reservoir oil can be lowered 10/sup 0/ to 20/sup 0/C below initial reservoir temperature. Because Uzen crude oil is saturated with paraffin, the cold injection water can deposit paraffin in the formation and reduce oil recovery. In a related study, it was shown that the lower temperature should not adversely affect capillary and wettability behavior of the crude oil in the reservoir. Oil recovery was found to be essentially independent of water composition. However, fresh water is easier to handle in injection systems than brines. Several studies have shown that oil recovery from Uzen field should be increased by use of hot injection water. Various methods of heating the water are discussed. To reduce corrosivity and scaling of hot brine, sodium hexametaphosphate is added in concentrations of 2 to 15 mg/liter. It is concluded that it would be practical to use hot injection water in this field.}
journal = []
volume = {No. 1968:11}
journal type = {AC}
place = {USSR}
year = {1968}
month = {Nov}
}