An Experimental Investigation of the pH Effect on the Properties of Iraqi Cement Class G: A Comparative Study with UAE Cement

حارث فالح حسن الخفاجي; المنار فالح; محمد فاضل; وسام سعدون; Wahib Abdo; Wakeel Hussein

doi:10.52716/jprs.v15i3.970

المؤلفون

حارث فالح حسن الخفاجي وزارة النفط، مركز البحث والتطوير النفطي
المنار فالح وزارة النفط، مركز البحث والتطوير النفطي
محمد فاضل وزارة النفط، مركز البحث والتطوير النفطي
وسام سعدون وزارة النفط، مركز البحث والتطوير النفطي
Wahib Abdo Petroleum Engineering Department, China University of Geosciences, Wuhan, China.
Wakeel Hussein School of Geophysics & Geomatics, China University of Geosciences, Wuhan 430074, China.

DOI:

https://doi.org/10.52716/jprs.v15i3.970

الكلمات المفتاحية:

Cement Class G, pH impact, physical test, Iraqi and UAE cement

الملخص

تعد عملية الأسمنت عملية بالغة الأهمية في حفر آبار النفط والغاز، حيث تكون الأخطاء مكلفة للغاية وتستغرق وقتًا طويلاً لتصحيحها. تشمل بعض المعايير الفنية التي تؤثر على هذه العملية الرقم الهيدروجيني للمياه المستخدمة في تحضير ملاط الأسمنت. تبحث هذه الدراسة في تأثير الرقم الهيدروجيني للمياه على خصائص ملاط الأسمنت من الفئة G. تم خلط ملاط الأسمنت باستخدام الماء المقطر وأربع عينات مياه بدرجة حموضة 9.5 و10 و11 و12 على التوالي، بدون أي إضافات. تم إجراء التحليلات الفيزيائية والكيميائية للأسمنت العراقي والإماراتي وفقًا لمواصفات API القياسية. تشير النتائج إلى أن أسمنت الإمارات العربية المتحدة يلبي إلى حد كبير مواصفات API، في حين أن الأسمنت العراقي لديه بعض الانحرافات بسبب اختلاف عمليات التصنيع، مما تسبب في حدوث أعطال عندما أجريت الاختبارات بالمياه العذبة. أظهرت الاختبارات الفيزيائية التي أجريت أن خليط الماء القلوي، الذي يزيد الرقم الهيدروجيني له عن 7، يضعف خصائص الأسمنت فيما يتعلق بقوة الضغط والكثافة، بينما يتأخر وقت التكثيف بحوالي 50 دقيقة عند قيمة الرقم الهيدروجيني الأعلى. دعت هذه الدراسة إلى مراعاة تأثيرات الرقم الهيدروجيني في تحضير ملاط الأسمنت لضمان عدم إضعاف الترابط واستبعاد الأعطال بعد التشغيل.. وأخيرا، تكمن أهمية هذا العمل في الأخذ بعين الاعتبار تأثير الرقم الهيدروجيني عند تحضير الملاط ذو الرابطة الجيدة، بالإضافة إلى تجنب فشل عملية الأسمنت بعد أداء المهمة.

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