Journal of Gas Technology

Simulation and Sensitivity Analysis of Flare Gas Recovery for Application in Hydrocarbon Reservoirs as Injection Gas

Document Type : Original Article

Authors

1 M.Sc. Student, Department of Petroleum Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

2 Assistant Professor, Department of Petroleum Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

20.1001.1/jgt.2023.1986515.1022

Abstract

Flare gas recovery is one of the essential processes in reducing the greenhouse gas emissions caused in the oil and gas industry. On the other hand, due to the reduction of pressure and production rate of hydrocarbon reservoirs especially in Iran, it is necessary to provide solutions for reservoirs pressure maintenance. Therefore, in this paper the potential application of the separated carbon dioxide from the flare gas in Parsian refinery was investigated for injection into a gas condensate reservoir. For this purpose, the flare gas recovery process was simulated using Aspen HYSYS software and operational enhancements were applied. Next, the injection of the separated carbon dioxide into a gas condensate reservoir was simulated in Petrel software, and the best scenario was determined. The obtained results indicated that maximum CO2 recovery is achieved using Diisopropanolamine as solvent with the flow rate 1930 USGPM. The reservoir simulation results revealed that CO2 injection prevents severe pressure drop and causes the reservoir pressure to decline with a lower slope. Thus, the reservoir production rate increases and becomes more stable. The most stable production rate was attained for injection rate of 305 million cubic meters per day.

Keywords

Main Subjects

Article Title [Persian]

شبیه‌سازی و آنالیز حساسیت بازیابی گاز مشعل جهت کاربرد در مخازن هیدروکربنی به‌عنوان گاز تزریقی

Authors [Persian]

  • محمد مهدی صباغیان 1
  • مستانه حاجی پور 2

1 کارشناس ارشد، گروه مهندسی نفت، دانشکده نفت و مهندسی شیمی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

2 استادیار، گروه مهندسی نفت، دانشکده نفت و مهندسی شیمی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

Abstract [Persian]

بازیابی گاز مشعل یکی از فرآیندهای ضروری در کاهش انتشار گازهای گلخانه‌ای در صنایع نفت و گاز است. از طرفی با توجه به کاهش فشار و میزان تولید مخازن هیدروکربنی به‌ویژه در ایران، ارائه راهکارهایی برای نگهداری فشار مخازن ضروری است، بنابراین در این مطالعه پتانسیل استفاده از دی‌اکسید کربن جدا شده از گاز فلر در پالایشگاه پارسیان برای تزریق به یک مخزن گاز میعانی بررسی شد. برای این منظور، فرآیند بازیابی گاز مشعل با استفاده از نرم‌افزار Aspen HYSYS شبیه‌سازی و بهبودهای عملیاتی اعمال شد. سپس تزریق گاز دی‌اکسید کربن جدا شده به یک مخزن گاز میعانی در نرم‌افزار Petrel شبیه‌سازی شده و بهترین سناریو تعیین شد. نتایج به دست آمده نشان داد که بیشترین بازیابی CO2 با استفاده از دی ایزوپروپانول آمین به‌عنوان حلال با دبی USGPM ۱۹۳۰ حاصل می‌شود. نتایج شبیه‌سازی مخزن نشان داد که تزریق CO2 از افت فشار شدید جلوگیری کرده و موجب می‌شود که فشار مخزن با شیب کمتری کاهش یابد، بنابراین، نرخ تولید مخزن افزایش یافته و پایدارتر خواهد بود. پایدارترین نرخ تولید از مخزن برای نرخ تزریق ۳۰۵ میلیون مترمکعب در روز به‌دست آمد.

Keywords [Persian]

  • گاز فلر
  • تزریق گاز
  • مخزن گاز میعانی
  • شبیه‌سازی
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Journal of Gas Technology
Volume 7, Issue 2 - Serial Number 9
December 2022
Pages 4-15