Non Thermal Methods
NoDoC simulates the cost for Non-tehrmal techniques of Enhanced Oil Recovery that are:
- Chemical Flood (Injection)
. Polymer Flooding
. Surfactant Flooding
. Alkaline Flooding
. Emulsion Flooding
. Miscible (Solvent)
. Combination
- Water flood (Injection)
- Gas Drives
. Miscible Gas
. Immiscible Gas
As mentioned before Chemical flood is another technique in the thermal EOR to increase the mobility of oil in order to enhance oil recovery. This technique is based on adding additives or chemicals to the displacing fluid or to the residual oil to control viscosity and interfacial tension. Chemical processes include micellar polymer flooding, caustic flooding, and polymer flooding.
NoDoC implemnts Micellar Polymer Flooding technique in which micellar solutions are mixtures of surfactants, cosurfactants, electrolytes, hydrocarbon, and water. Surfactants are substances known as surface active agents, such as soap. Cosurfactants are used for stability such as alcohols. Electrolytes are salts used to control viscosity and interfacial tension such as sodium chloride or ammonium sulphate. Hydrocarbon used is light crude at most. These solutions, which are designed on a field by field basis, are proposed to displace reservoir oil and miscible water.
Also NoDoC simulates Caustic Flooding. An in situ emulsification process is employed by caustic or alkaline injection. The added chemicals to the injection water are caustic soda, sodium silicate, sodium carbonate, or sodium h y d roxide. These chemicals are mixed with the residual oil in the reservoir. The crude oil must contain natural organic acids; most common are the naphthenic acids. When the alkaline injected water and acidic crude react, soaps are produced at the oil water interface. These soaps cause oil to be movable.
Polymer Flooding is the next EOR method that is included in NoDoC. Polymer floods a re improved waterfloods by increasing the viscosity of the displacing fluid which provides an increase in displacement efficiency. In addition, increasing the displacing fluid’s viscosity and lowering its relative permeability through plugging will improve the mobility ratio and this will make an improvement in areal and vertical sweep efficiency.
- Chemical Flood (Injection)
. Polymer Flooding
. Surfactant Flooding
. Alkaline Flooding
. Emulsion Flooding
. Miscible (Solvent)
. Combination
- Water flood (Injection)
- Gas Drives
. Miscible Gas
. Immiscible Gas
As mentioned before Chemical flood is another technique in the thermal EOR to increase the mobility of oil in order to enhance oil recovery. This technique is based on adding additives or chemicals to the displacing fluid or to the residual oil to control viscosity and interfacial tension. Chemical processes include micellar polymer flooding, caustic flooding, and polymer flooding.
NoDoC implemnts Micellar Polymer Flooding technique in which micellar solutions are mixtures of surfactants, cosurfactants, electrolytes, hydrocarbon, and water. Surfactants are substances known as surface active agents, such as soap. Cosurfactants are used for stability such as alcohols. Electrolytes are salts used to control viscosity and interfacial tension such as sodium chloride or ammonium sulphate. Hydrocarbon used is light crude at most. These solutions, which are designed on a field by field basis, are proposed to displace reservoir oil and miscible water.
Also NoDoC simulates Caustic Flooding. An in situ emulsification process is employed by caustic or alkaline injection. The added chemicals to the injection water are caustic soda, sodium silicate, sodium carbonate, or sodium h y d roxide. These chemicals are mixed with the residual oil in the reservoir. The crude oil must contain natural organic acids; most common are the naphthenic acids. When the alkaline injected water and acidic crude react, soaps are produced at the oil water interface. These soaps cause oil to be movable.
Polymer Flooding is the next EOR method that is included in NoDoC. Polymer floods a re improved waterfloods by increasing the viscosity of the displacing fluid which provides an increase in displacement efficiency. In addition, increasing the displacing fluid’s viscosity and lowering its relative permeability through plugging will improve the mobility ratio and this will make an improvement in areal and vertical sweep efficiency.
