Enhanced oil recovery techniques - petrofed.winwinho...
Enhanced oil recovery techniques - petrofed.winwinho...
Enhanced oil recovery techniques - petrofed.winwinho...
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LimitationsChemical EOR Process•Adsorption of chemicals can be detrimental to the process.High temperature leads to degradation of chemicals.•Best results are obtained when alkaline material reacts with crude <strong>oil</strong>.The <strong>oil</strong> should have acid number more than 0.2 mg KOH/g of <strong>oil</strong>.•High amounts of anhydrite, gypsum or clays are undesirable.•Formation water chloride of < 20,000 ppm and divalent ions (Ca++and Mg++)
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