کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1732343 | 1521462 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of polymer concentration on the polymer adsorption-induced permeability reduction in low permeability reservoirs
ترجمه فارسی عنوان
اثر غلظت پلیمر بر کاهش نفوذپذیری ناشی از جذب پلیمر در مخازن نفوذ پذیری پایین
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کلمات کلیدی
سیل پلیمری، کاهش نفوذ پذیری ناشی از جذب پلیمر، نفوذ پذیری پایین، سیستم دو بعدی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Particularly in low permeable sandstone, oil recovery was not proportionally enhanced with increase in polymer concentration, rather decreased at concentrations above 1,000Â ppm in this experiment. This could be understood by polymer adsorption phenomena corresponding to concentrations. The polymer adsorption layer formed at high concentration clogged effective pore radius by up to 59.8%, compared to clean sandstone and the permeability greatly decreased from 56 to 1.5Â mD, resulting in rather decreased oil recovery. For this reason, there should be an optimum concentration for maximizing the oil recovery. It was also confirmed by shear rate analysis. At high concentration, the shear rate near injection where has the highest velocity was greater than critical rate. This means that polymer molecules adsorbed to mono-layer of adsorption by hydraulic force, and the adsorption became additionally thicker and hindered the oil flow.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 84, 1 May 2015, Pages 666-671
Journal: Energy - Volume 84, 1 May 2015, Pages 666-671
نویسندگان
Hyemin Park, Jinju Han, Wonmo Sung,