کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10687600 | 1017717 | 2005 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical modeling of non-isothermal quartz dissolution/precipitation in a coupled fracture-matrix system
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Numerical modeling of non-isothermal quartz dissolution/precipitation in a coupled fracture-matrix system Numerical modeling of non-isothermal quartz dissolution/precipitation in a coupled fracture-matrix system](/preview/png/10687600.png)
چکیده انگلیسی
A numerical model is developed to simulate the combined effect of thermal and reactive solute transport in a coupled fracture-matrix system using dual porosity concepts. The model includes solute dispersion in the fracture, lateral diffusion-limited transport of solutes from the fracture into the reservoir matrix, lateral conduction-limited thermal flux from the reservoir into the fracture, as well as thermal conduction and dispersion in the fracture. The model is applied to examine the mass of silica dissolved/precipitated along a fracture and to compute the change in fracture aperture. Results show that the maximum increase in the fracture aperture occurs near its inlet. A parametric study indicates that the reservoir thermal conductivity, reservoir porosity, reservoir effective diffusion coefficient, water velocity in the fracture, and the initial fracture aperture have dominant roles in quartz dissolution/precipitation mechanisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geothermics - Volume 34, Issue 4, August 2005, Pages 411-439
Journal: Geothermics - Volume 34, Issue 4, August 2005, Pages 411-439
نویسندگان
G. Suresh Kumar, Ahmad Ghassemi,