کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1754593 1522801 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analytical solutions of oil displacement by a polymer slug with varying salinity
ترجمه فارسی عنوان
راه حل های تحلیلی جابجایی روغن توسط یک سولفوم پلیمری با شوری متفاوت
کلمات کلیدی
شوری پایین، سیل پلیمری، راه حل دقیق روش تقسیم، شلاق با رانندگی درایو، غیر نیوتنی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی


• Exact solutions for two-phase four-component flow in porous media.
• Non-Newtonian behaviour of polymer yields velocity dependency of the fractional-flow.
• Salinity-dependency of polymer sorption yields a simultaneous jump of salt and polymer.
• The low-salinity-water slug fornt moves faster than the polymer slug front.

This paper presents an analytical solution of a non-self-similar, two-phase, multi-component problem of polymer slug injection with varying water salinity (ionic strength) in oil reservoirs. The non-Newtonian properties of polymers are incorporated into the fractional flow, yielding the velocity dependency of the fractional-flow function. Using the Lagrangian coordinate instead of time allows splitting the initial system (n+1×n+1) into a n×n system for concentrations and one scalar hyperbolic equation for phase saturation, which allows for full integration of the non-self-similar problem of wave interactions. The solution includes implicit formulae for saturation, polymer, and salt concentrations and front trajectories of the components. The solution allows determining the slug size of the low-salinity water that prevents the contact between the polymer and the high-salinity water.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Petroleum Science and Engineering - Volume 140, April 2016, Pages 28–40
نویسندگان
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