بررسی گسترش و تخمین مقدار نفت در آبهای زیرزمینی پالایشگاه آبادان

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشیار دانشکده مهندسی نفت، دانشگاه صنعت نفت آبادان

2 پژوهشگر دانشکده مهندسی نفت، دانشگاه صنعت نفت آبادان

چکیده

آگاهی از گسترش و تخمین مواد نفتی نشت شده در پالایشگاهها، از مهم‌ترین اطلاعاتی است که در مطالعات زیست‌محیطی به‌منظور مقابله با آلودگی‌های محیط‌های آبی و خاکی باید در دسترس محققان باشد. به‌دلیل نشت مواد نفتی و فراورده‌های آن از لوله‌ها و مخازن رو زمینی پالایشگاه آبادان در طول جنگ تحمیلی و فرسودگی سیستم‌های ذخیره, انتقال و پالایش نفت به‌دلیل قدمت این واحد و همچنین واقع شدن بین دو رودخانه مهم که آب شهری، صنعتی و کشاورزی منطقه را تأمین می‌نماید، بررسی و انجام مطالعات در راستای شناسایی گسترش و مقدار آلودگی نفتی در آبهای زیرزمینی ضروری به‌نظر می‌رسد. در این پروژه، موقعیت سنجی حفر 20 چاه آبی مشاهده‌ای از نظر نشت مواد نفتی در زمان جنگ و بعد از آن انجام گردید. طی دوره یک‌ساله، گسترش و ضخامت نفت شناور بر روی آبهای‌ زیرزمینی پالایشگاه، اندازه‌گیری شد. با استفاده از اطلاعات تراز آبهای زیرزمینی، مدل حرکت آبهای زیرزمینی نیز در پالایشگاه آبادان طراحی گردید. مواد نفتی فقط در دو حلقه چاه که ناشی از فعالیتهای اخیر پالایشگاه بوده‌اند مشاهده گردید. نتایج نشان داد که اغلب مواد نفتی پخش شده در زمان جنگ و بعد از آن جذب رس موجود در لایه‌های زیرسطحی شده‌اند.

کلیدواژه‌ها


عنوان مقاله [English]

Assessment of Petroleum Leakage in Groundwater of the Abadan Refinery

نویسندگان [English]

  • Seyed Reza Shadizadeh 1
  • Mansoor Zoveidavianpoor 2
1 Assoc. Prof., Dept. of Petroleum Eng., Petroleum Univ. of Tech., Abadan
2 Researcher of Petroleum Eng. Dept., Petroleum Univ. of Tech., Abadan
چکیده [English]

Knowledge of petroleum leakage at oil refineries is vital for environmental study of water and soil pollution. Abadan Refinery is located between the Arvandrud and Bahmanshir rivers in the highly populated area of Abadan city. These rivers supply domestic, industrial, and agricultural water toAbadancity. During the war betweenIranandIraq, enormous volumes of oil and petroleum products leaked from storage tanks and pipelines at Abadan Refinery into the surrounding environment. The resulting pollution is a serious threat and a growing environmental concern for the region. In this work, twenty boreholes were dug to investigate petroleum leaks into the surrounding area both during and after the war. The thickness of petroleum floating on underground waters at the refinery was measured by sampling underground water over a period of one year along with measuring the piezometric heads of groundwater monitoring wells. Also, groundwater movement pattern at Abadan Refinery was determined by measuring the water table in each well over the same period. The results of sampling indicate that oil leaks were observed in just two wells; namely, wells No.3 and No.11. The results also show that the greatest portion of the oil spill in underground layers at Abadan Refinery was absorbed into clay soil.

کلیدواژه‌ها [English]

  • Environment
  • Water Pollution
  • Groundwater
  • Abadan Refinery
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