کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4986093 1454796 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impacts of polypropylene glycol (PPG) additive and pH on tribological properties of water-based drilling mud for steel-steel contact
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Impacts of polypropylene glycol (PPG) additive and pH on tribological properties of water-based drilling mud for steel-steel contact
چکیده انگلیسی
In this study, three types of polypropylene glycols (PPGs) were added in basic mud as additives. Different chemicals were added to adjust the pH value of mud. PPGs were found to increase the viscosity and reduce the API fluid loss of original drilling mud. Impacts of PPG and pH value on tribological properties were evaluated for steel-steel contact. Experimental results indicated that lower molecular weight PPG had better friction reduction and anti-wear ability. When excessive amount of PPG was added, friction and wear became worse, which was attributed to the aggregation of hard particles in the basic mud with presence of excessive PPG molecules. In terms of pH, both friction and wear generally increased with pH value of the mud.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 110, June 2017, Pages 318-325
نویسندگان
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