Table 2 Comparative analysis between various thermal Electrical EOR techniques as presented by Rehman and Meribout [53]
From: Effectiveness of electrokinetic-enhanced oil recovery (EK-EOR): a systematic review
EK-EOR type | Areas of application (suitability) | Limitations |
|---|---|---|
Induction heating | -Reservoirs with thief zones -Reservoirs where thermal EOR is not suitable -Reservoirs having low in situ water saturation | -Heating applies to only near well bore areas |
Low-frequency electric heating | -Can be used as alternative to steam injection depending on the energy supplied -Reservoirs comprising of high permeability streaks or fractures | -Heating temperature limited by the boiling point of water |
Microwave heating | -Heavy oil reservoirs -Reservoirs with target areas directly exposed to microwaves without any hurdles | -Require shut down of production -Penetration depth of high frequency is limited -Source may get damaged because of extensive heat production -Not applicable to water flooded reservoirs |