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Study of Cathodic protection of crude oil pipelines

دراسة الحماية الكاثودية لأنابيب نقل النفط الخام

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 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




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In this research study the effect of the type of corrosion protection, on the rates of Carbon Steel samples from the same metal tube oil buried in soil and comparing between corrosion rates of samples steel non protected and corrosion rates protected samples in different protections ways, protection paint epoxy, protection paint epoxy and polyethylene and Cathodic protection by sacrifice anode (Zinc was chosen as anode sacrifice) and Cathodic protection impressed current. The samples protected and non-protected study's in the middle of corrosion of two sites of Homs soil (soil city of Homs –soil of Furqlus area) In each soil alone and the statement of the effectiveness of the Cathodic protection in increase the protection and then the comparison between the two Cathodic protection to reduce the corrosion rate was also study the effect of humidity and time on the corrosion samples steel is protected and samples steel Cathodic protected rates by anode sacrifice and was finally comparison between rates corrosion between the signatories studied soils (soil city of Homs - soil of Furqlus area) and whichever is more aggressive and study the factors that have made the soil more Furqlus hostile soil of the city of Homs, prompting us to both soils analysis and study results.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير أنواع الحماية من التآكل على معدلات تآكل عينات فولاذ كربوني من نفس معدن أنبوب نقل النفط المدفون في التربة. تمت مقارنة معدلات تآكل عينات غير محمية مع عينات محمية بطرق مختلفة مثل دهان الإيبوكسي، دهان الإيبوكسي والبولي إيثيلين، والحماية الكاثودية باستخدام آنود مضحي (الزنك) والحماية الكاثودية بتيار مسلط. وضعت العينات في تربة من موقعين في محافظة حمص (مدينة حمص ومنطقة الفرقلس) لدراسة فعالية الحماية الكاثودية وتأثير الرطوبة والزمن على معدلات التآكل. أظهرت النتائج أن العينات غير المحمية كانت الأكثر تعرضاً للتآكل، بينما قدمت الحماية الكاثودية أفضل مقاومة للتآكل. كما تبين أن تربة الفرقلس كانت أكثر عدائية من تربة مدينة حمص بسبب اختلاف نسبة الشوارد والناقلية الكهربائية والمواد العضوية. خلصت الدراسة إلى أن الحماية الكاثودية بتيار مسلط والآنود المضحي هما الأكثر فعالية في تقليل معدلات التآكل، وأن العوامل البيئية مثل الرطوبة والزمن تؤثر بشكل كبير على معدلات التآكل.
Critical review
دراسة نقدية: تقدم هذه الدراسة معلومات قيمة حول تأثير أنواع الحماية المختلفة على تآكل أنابيب النفط المدفونة في التربة. ومع ذلك، يمكن تحسين الدراسة من خلال توسيع نطاق العينات لتشمل أنواع أخرى من التربة والمناطق الجغرافية المختلفة. كما أن الدراسة تركز بشكل كبير على الجوانب التقنية والكيميائية دون التطرق بشكل كافٍ إلى الجوانب الاقتصادية والعملية لتطبيق هذه الأنواع من الحماية في الواقع العملي. بالإضافة إلى ذلك، يمكن أن تكون الدراسة أكثر شمولية إذا تضمنت تحليلًا أعمق لتأثير العوامل البيئية الأخرى مثل درجة الحرارة وتغيرات الطقس على معدلات التآكل.
Questions related to the research
  1. ما هي أنواع الحماية التي تم دراستها في هذه البحث؟

    تم دراسة أربعة أنواع من الحماية: دهان الإيبوكسي، دهان الإيبوكسي والبولي إيثيلين، الحماية الكاثودية بآنود مضحي (الزنك)، والحماية الكاثودية بتيار مسلط.

  2. ما هي العوامل التي جعلت تربة الفرقلس أكثر عدائية من تربة مدينة حمص؟

    تربة الفرقلس كانت أكثر عدائية بسبب ارتفاع نسبة شوارد الكلور والمواد العضوية والناقلية الكهربائية مقارنة بتربة مدينة حمص.

  3. ما هي أفضل طرق الحماية التي أثبتت فعاليتها في تقليل معدلات التآكل؟

    أفضل طرق الحماية التي أثبتت فعاليتها هي الحماية الكاثودية بتيار مسلط والحماية الكاثودية بآنود مضحي.

  4. كيف يؤثر الزمن والرطوبة على معدلات التآكل؟

    بزيادة الزمن، ينخفض معدل التآكل ويتجه نحو الاستقرار نتيجة لتشكل طبقة من منتجات التآكل. أما بالنسبة للرطوبة، فإن زيادة نسبة الرطوبة تزيد من معدل التآكل حتى تصل إلى نسبة معينة، وبعدها تنخفض معدلات التآكل.


References used
Michied p.H. Brongers,Corrosion control and prevention ,CC Technologies Laboratories,Inc,Dublin,Ohio,2000,pp.10-25
Frankel G. S., "Corrosion Science in 21st Century", Journal of Corrosion science and Engineering,Vol 6,2003,pp.1-15
API specification 5L forty – second edition , January 2000
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