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Performance of Sulfonated Polyacrylamide/ Chromium Triacetate Hydrogels for Water Shut-off Treatment
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نویسنده
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Dadvand Koohi A. ,Vafaie Sefti M. ,Zarrin Ghalam A. ,Mousavi Moghadam A. ,Naderi H.
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منبع
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journal of petroleum science and technology - 2011 - دوره : 1 - شماره : 2 - صفحه:10 -18
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چکیده
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A hydrogel was prepared by crosslinking aqueous solutions of sulfonated polyacrylamide/chromium triacetate for use in water shut off operations. gel swelling and the effects of salinity, injection time and flow rate on residual resistance factor (frr) were investigated. in the presence of electrolytes, gel swelling decreased by about 80%. results showed that oil permeability increased as injection time increased. the results also indicated that the effect of gel treatment increased with decreasing injection rate. however, when sand packed was water flooded by formation water, frrw decreased by about 26%. according to the results, disproportionate permeability reduction (dpr) was the result of gel swelling by water injection and dehydration by oil injection.
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کلیدواژه
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Polymer Gel ,Sulfonated Polyacrylamide ,Swelling ,Dehydration ,Residual Resistance Factor.
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آدرس
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university of guilan, Chemical Engineering Department, ایران, tarbiat modares university, Chemical Engineering Department, ایران, tarbiat modares university, Chemical Engineering Department, ایران, Oil, Gas and Thermodynamic TMU Research Group, ایران, Research Institute of Petroleum Industry (RIPI), Center for Exploration and Production Studies and Research Division, ایران
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Authors
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