کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7842658 | 1506513 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Precipitation and deposition of asphaltene in porous media: Impact of various connate water types
ترجمه فارسی عنوان
بارش و رسوب آسفالتین در رسانه های متخلخل: تأثیر انواع آبهای متداول
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کلمات کلیدی
بارش آسفالتین، رسوب آسفالتین، انتشار مولکولی، اثر سالت در، شور شستشو آب،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
The precipitation and deposition of asphaltene are among the least understood phenomena in upstream to downstream oil-related processes. The present experimental study investigated the impact of different connate water types on precipitation and deposition of asphaltene from synthetic oil solutions comprising of toluene, n-heptane with 5Â wt% of asphaltene in a uniformly patterned glass micromodel. To do so, different types of connate water including deionized water (DW) and brines such as CaCl2, MgCl2, KCl, NaCl, and Na2SO4 ranging from 5000 to 40,000Â ppm were investigated. It was found that the type of cations present in the brine would profoundly influence the precipitation of asphaltene, probably due to their higher affinity toward anionic components. Divalent cations were also found to cause much more severe asphaltene precipitation compared to monovalent cations. Connate water saturation of different brines was also found to have diverse impact on precipitation and deposition of asphaltene given the type of cations present in the aqueous phase. Moreover, brine concentration influenced the amount of precipitated asphaltene due to the salting-in and salting-out effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 258, 15 May 2018, Pages 124-132
Journal: Journal of Molecular Liquids - Volume 258, 15 May 2018, Pages 124-132
نویسندگان
H. Doryani, M.R. Malayeri, M. Riazi,