مهندسی شیمی ایران

مهندسی شیمی ایران

ارزیابی سازوکار‌های ازدیاد برداشت نفت به‌وسیلۀ فوم پایدارشده‌ با هیبرید سورفکتانت و نانوسیلیکا

نوع مقاله : مقاله پژوهشی

نویسندگان
1 استادیار مهندسی نفت، دانشگاه علم و صنعت ایران
2 دانشجوی کارشناسی ارشد مهندسی نفت، دانشگاه سمنان
3 استاد مهندسی شیمی، دانشگاه سمنان
چکیده
باتوجه‌به اهمیت پایداری فوم در فرایند جابه‌جایی فاز نفتی، این مقاله اثرات هم‌افزایی سورفکتانت آنیونی سدیملوریلاترسولفات و نانوسیلیکا را بر پایداری فوم بررسی‌کرده‌است. برای سنجش پایداری دینامیکی فوم، عملکرد فوم در کیفیت‌های 60، 75 و 90 درصد در میکرومدل با نفوذپذیری دوگانه بررسیشدهاست. آزمایش استاتیکی به‌منظور بررسی تأثیر نانوذرات در غلظت ثابت CMC3 سورفکتانت بر افزایش پایداری فوم انجامشد. تأثیر نانوذرات بر کاهش کشش سطحی و تغییر ترشوندگی ارزیابی‌شد. مشاهدات آزمایشگاهی نشان‌داد که نانوذرات سیلیکا در غلظت 5/0 درصد وزنی، پایداری فوم سورفکتانت را به‌دلیل تجمع بالا در سطح گاز- مایع افزایشمی‌دهد. با افزودن نانوسیلیکا به محلول سورفکتانت، خواص سطحی با کاهش کشش سطحی و تغییر ترشوندگی سطح شیشه به‌سمت آب‌دوستی بهبودیافت. با کاهش کیفیت فوم به‌دلیل کاهش اشباع گاز، تحرک فوم کاهش و درنتیجه، راندمان جاروب افزایشیافت.
کلیدواژه‌ها

عنوان مقاله English

Experimental Evaluation of Foam Stabilized by Surfactant - Nanosilica Hybrid for Enhanced Oil Recovery

نویسندگان English

.S. M Hosseini-Nasab 1
.K Gholipour Sangelaji 2
.F Hormozi 3
1 Assistant Professor of Petroleum Engineering, Iran University of Science and Technology
2 M. Sc. Student of Petroleum Engineering, Semnan University
3 Professor of Chemical Engineering, Semnan University
چکیده English

Given the importance of foam stability in the oil phase displacement process, this paper investigates the synergistic effects of the anionic surfactant sodium lauryl ether sulfate and nano-silica on foam stability. To assess the dynamic stability of the foam, its performance was examined at qualities of 60%, 75%, and 90% in a micromodel with dual permeability. A static test was conducted to evaluate the impact of nanoparticles at a fixed surfactant concentration of 3CMC on enhancing foam stability. The effects of nanoparticles on reducing interfacial tension and Wettability alteration were also assessed. Experiment observations indicated that silica nanoparticles, at a concentration of 0.5%Wt, enhance the stability of surfactant foam due to high accumulation at the gas-liquid interface. By adding nano-silica to the surfactant solution, surface properties improved, with a reduction in interfacial tension and a shift in the glass surface wettability toward hydrophilicity. With a decrease in foam quality due to reduced gas saturation, foam mobility decreased, resulting in improved sweep efficiency.

کلیدواژه‌ها English

Foam
Silica Nanoparticles
Micromodel
Wettability
Enhanced Oil Recovery
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