The other option is to undertake Alkaline-Surfactant-Polymer flooding ( ASP ).
2.
The techniques used to improve oil recovery can be straightforward polymer flooding ( PF ), surfactant polymer flooding ( SP ) or alkaline surfactant polymer flooding ( ASP ).
3.
The techniques used to improve oil recovery can be straightforward polymer flooding ( PF ), surfactant polymer flooding ( SP ) or alkaline surfactant polymer flooding ( ASP ).
4.
The techniques used to improve oil recovery can be straightforward polymer flooding ( PF ), surfactant polymer flooding ( SP ) or alkaline surfactant polymer flooding ( ASP ).
5.
In 1985, Unocal tried waterflooding, and then polymer flooding, to improve production rates, and then in 1990 they began a horizontal drilling program to reach reservoirs impractical to exploit any other way.
6.
During the 1960s and 1970s, enhanced recovery technologies such as water flooding, steam flooding, fire flooding, and polymer flooding were employed to increase the declining productivity of the field, and to reach and recover previously submarginal deposits.
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