Thermal method in enhanced oil recovery process
How heat is used to increase oil production?
There are four major types of enhanced oil recovery based on the heat that makes thick and viscous oil more movement and therefore easier to extract.
1. Combustion topical :
This method includes setting fire to some of the oil in the reservoir, resulting in hot gas and steam. It goes without saying that this method is more four thermal methods need to be implemented for the Wiz as it should. In general, this method is only used in a reservoir permeability larger (so that the oil can flow easily through the cracks in the reservoir rock) and even when it should be resorted to as a last resort.) To implement this method is lowered into the well Meshaal and oxygen is injected to help ignite the oil. Although some oil loses during the burning process, but the interest is that a large amount of residual oil can be drawn so that the heat may be reduced viscosity. On the other hand steam product it helps push oil through the reservoir and down to the wells while working brought about by the combustion gases in a manner similar record as a method for the production of oil by pay using gas (energy produced from the expansion of gas oil from the reservoir to pay well production abroad).
2. Steam annular :
This method of thermal EOR methods also another name for the same closer knows which is "blowing" (Puff). What distinguishes this approach from other methods is the lack of two wells separate one for injection and the other for production. Instead, it is the steam injection and production of the well fluids from the same well. First, steam is injected into the reservoir to heat the part adjacent to the column and the well is the so-called PAL (Huff). This would make the oil flow more easily, but the steam needs time to do its work. So what the injection process to be completed until the well is closed temporarily, which is known in the oil industry, the process of closure or saturation (Soak). When hot steam comes into contact with the cold reservoir rock somewhat it condenses and becomes hot water, which produces more heat that is also in its turn, improve the flow of oil more. A few days later open the well again and is pumping oil and water mixture located around the well to the surface (Puff) to descend to the level of oil in the mixture to a very low level. At this point, the whole process can be re-again. Once the link between the wells flow line becomes possible to convert the annular steam injection project to project full immersion of steam.
3. Immersion steam (or push oil by steam) :
This method involves injecting steam into the reservoir and constantly play its role as it should be when the reservoir is of good permeability and reservoir rock was not cracked. If the reservoir rock cracked steam will be heading directly through these cracks to the production wells, rather than make his way across the reservoir rock. Once injected steam accumulation in the reservoir and with this shift accumulated steam injector well away from the steam begins to condense water to become hot. The condensation process launches latent heat, which helps the oil to flow more easily. And thus accumulated oil rushes in front of hot water in the direction of producing wells. There is the added benefit is that the light hydrocarbons evaporate by heat and with the accumulated driven by steam and mixed with oil, which is relatively heavier to make it flow more easily and this-immersion method takes advantage of the way the steam enhanced oil recovery using a miscible gas.
4. Discharge of oil and gas by gravity method using heat :
The discharge of oil and gas by gravity method using the ideal temperature in the reservoir which dominated so many cracks that steam is injected directly into these cracks so that the heating of the reservoir rocks and thus lowers the viscosity of the oil, which contain the seat. Contrary to what is the case for immersion process steam does not appear there is a need for steam to the payment of oil to the production wells, but only required of him is to make the oil flow more easily. This procedure allows gravity to give the desired result which makes the oil down into the cracks and from there to the horizontal production wells are present in almost the bottom of the reservoir. One of the big challenges facing the company in the company need to see how that is bound to every crevice with the other prong. It is known that this process produces huge amounts of contaminated water which must be disposed of in a manner not harmful to the environment.
How heat is used to increase oil production?
There are four major types of enhanced oil recovery based on the heat that makes thick and viscous oil more movement and therefore easier to extract.
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| oil - petroleum |
This method includes setting fire to some of the oil in the reservoir, resulting in hot gas and steam. It goes without saying that this method is more four thermal methods need to be implemented for the Wiz as it should. In general, this method is only used in a reservoir permeability larger (so that the oil can flow easily through the cracks in the reservoir rock) and even when it should be resorted to as a last resort.) To implement this method is lowered into the well Meshaal and oxygen is injected to help ignite the oil. Although some oil loses during the burning process, but the interest is that a large amount of residual oil can be drawn so that the heat may be reduced viscosity. On the other hand steam product it helps push oil through the reservoir and down to the wells while working brought about by the combustion gases in a manner similar record as a method for the production of oil by pay using gas (energy produced from the expansion of gas oil from the reservoir to pay well production abroad).
2. Steam annular :
This method of thermal EOR methods also another name for the same closer knows which is "blowing" (Puff). What distinguishes this approach from other methods is the lack of two wells separate one for injection and the other for production. Instead, it is the steam injection and production of the well fluids from the same well. First, steam is injected into the reservoir to heat the part adjacent to the column and the well is the so-called PAL (Huff). This would make the oil flow more easily, but the steam needs time to do its work. So what the injection process to be completed until the well is closed temporarily, which is known in the oil industry, the process of closure or saturation (Soak). When hot steam comes into contact with the cold reservoir rock somewhat it condenses and becomes hot water, which produces more heat that is also in its turn, improve the flow of oil more. A few days later open the well again and is pumping oil and water mixture located around the well to the surface (Puff) to descend to the level of oil in the mixture to a very low level. At this point, the whole process can be re-again. Once the link between the wells flow line becomes possible to convert the annular steam injection project to project full immersion of steam.
3. Immersion steam (or push oil by steam) :
This method involves injecting steam into the reservoir and constantly play its role as it should be when the reservoir is of good permeability and reservoir rock was not cracked. If the reservoir rock cracked steam will be heading directly through these cracks to the production wells, rather than make his way across the reservoir rock. Once injected steam accumulation in the reservoir and with this shift accumulated steam injector well away from the steam begins to condense water to become hot. The condensation process launches latent heat, which helps the oil to flow more easily. And thus accumulated oil rushes in front of hot water in the direction of producing wells. There is the added benefit is that the light hydrocarbons evaporate by heat and with the accumulated driven by steam and mixed with oil, which is relatively heavier to make it flow more easily and this-immersion method takes advantage of the way the steam enhanced oil recovery using a miscible gas.
4. Discharge of oil and gas by gravity method using heat :
The discharge of oil and gas by gravity method using the ideal temperature in the reservoir which dominated so many cracks that steam is injected directly into these cracks so that the heating of the reservoir rocks and thus lowers the viscosity of the oil, which contain the seat. Contrary to what is the case for immersion process steam does not appear there is a need for steam to the payment of oil to the production wells, but only required of him is to make the oil flow more easily. This procedure allows gravity to give the desired result which makes the oil down into the cracks and from there to the horizontal production wells are present in almost the bottom of the reservoir. One of the big challenges facing the company in the company need to see how that is bound to every crevice with the other prong. It is known that this process produces huge amounts of contaminated water which must be disposed of in a manner not harmful to the environment.
