whats the first step, second step and so on. what i can i make first solution of? and then add what into it and so,,,
Dear Allah Bakhsh, I can imagine a little excerpt from my book. You asked a question that would require an answer to a whole volume of paper.
When preparing for extraction of additional oil, it is necessary to take into account a huge number of factors that may affect the EOR. First of all, it is necessary to evaluate the geological reserves of the deposit, where the work will be carried out. It is necessary to know the amount of free pore space, how much water was pumped during the secondary oil production, what changes occurred in the composition of oil after the primary and secondary oil recovery, what is the nature of the rock surface. It has been established that the residual oil, as compared to the initial oil, has a higher content of heavy fractions: resins, asphaltenes, metal-porphyrin complexes. When choosing a composition for EOR it is necessary to take into account the composition of the oil, the specific properties of the natural surfactant of the oil in the field.
It is necessary to develop a technique for conducting experiments in production conditions to answer at least such questions: whether more oil is being expelled; whether the tempo of development is increasing and whether the flow of water for displacement is decreasing; whether the shaft of buried water is formed during the process of displacement; what is the value of adsorption of surfactants in reservoir conditions; is it possible to desorb surfactants, how to degrade the surfactant in the process, will the surfactant lead to an increase in the number of a number of production wells under the influence of injectors?
Before a real EOR, you can conduct a computer experiment. With the use of mathematical modeling, local viscosity profiles in an oil reservoir were investigated by displacement with the use of low- and high-molecular-weight hydrolyzed polyacrylamides]. As independent variables, the model includes the injection rate, the average size and pore distribution, the thickness of the developed formation, the tortuosity, the distance from the well, and the available pore volume. The model allows one to describe the relative viscosity over a wide range of shear rates.
Regards.
Please have look on the following useful papers:
1-. Article Interaction of Electrolyte on the Stability and Dynamic Rheo...
2- Article Polymeric Surfactants for Enhanced Oil Recovery: a Review
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