تحديد المعلمات الطاقة الحركية النسبية لتكوينات الصخور المصدرية للهايدروكاربون من العصر الجوراسي الأوسط إلى العصر الجوراسي العلوي بمستويات نضج مختلفة عن طريق التحليل العنصري
DOI:
https://doi.org/10.52716/jprs.v16i2.1051الكلمات المفتاحية:
لكيروجين، الصخور المصدرية، التحلل الحراري المائي، التحلل الحراري للنظام المفتوح، التحلل الحراري للنظام المغلق، العصر الجوراسي، محتوى الكبريت، توايد النفطالملخص
تم دراسة المعلمات الطاقة الحركية لتكوينات الجوراسي الأوسط والأعلى الغنية بالمواد العضوية في شمال العراق، مع التركيز بشكل خاص على الكيروجين الغني بالكبريت. تتحدث الدراسة توليد النفط الطبيعي وقذفه باستخدام التحلل الحراري المائي لتقييم عواقب محتوى الكبريت على طاقة التنشيط وعوامل التردد والنضج الحراري. تكشف المقارنة بين طريقتي التحلل الحراري (المفتوحة والمغلقة) عن تأثيرات معلمات النظام على جودة ومحتوى النفط المنتج. تتجاوز تأثيرات مستويات الكبريت كما هو موضح بنسب Sorg/C الذرية 0.04 ولا ينبغي أن تتجاوز 0.4٪. تظهر النتائج أن هذه الكثافة الكبريتية موجودة في الكيروجينات من النوع II-S في تكوينات الجوراسي الأوسط والأعلى؛ ترتبط هذه المستويات بدرجات حرارة النضج المنخفضة والتكوين المبكر للنفط. تقدم النتائج معلومات جوهرية لتقييم نظام النفطي الجوراسي في السحنات الكربونية التي تحتوي على نسبة عالية من الكبريت.
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