دانشگاه صنعتی امیرکبیر نشریه مهندسی مکانیک امیرکبیر 2008-6032 50 2 2018 06 22 An Analytical Investigation into Effects of Fracture Dispersion Coefficients and Thermal Conductivity on Geothermally Fractured Reservoirs بررسی تحلیلی تاثیر ضرایب پراکندگی و هدایت حرارتی شکاف در مخازن زمین گرمایی شکاف دار 359 368 938 10.22060/mej.2017.12233.5285 FA مهدی عباسی دانشکده مهندسی نفت، دانشگاه صنعتی امیرکبیر، تهران، ایران محمد شریفی دانشکده مهندسی نفت، دانشگاه صنعتی امیرکبیر، تهران، ایران علیرضا کاظمی دانشکده مهندسی نفت، دانشگاه صنعتی امیرکبیر، تهران، ایران Journal Article 2016 12 06 Renewable energy is defined as sort of energy whose producing resources possess the capability to renew through nature during a short period of time. The analytical model of water injection into geothermal reservoirs process which is used to describe more complex matters, can explain the heat transfer processes in the porous media better. The presented corresponding studies so far are based on numerical and semi-analytical methods while here, a fully exact analytical solution is introduced considering phenomena of convection, conduction and dispersion inside fractures, conduction inside matrix blocks, and matrix-fracture heat transfer. In this regard, geothermal fractured reservoir related heat transfer equations are solved, ignoring fracture dispersion and heat conduction phenomena, which appears to be an appropriate assumption in high injection velocity values and then the effects of injection water velocity and distance from injection well parameters on the amount of error percent of these two models are investigated. Moreover, thermal recovery efficiency is employed to investigate cold water flooding into such reservoirs followed by a comparison to a numerical model for the purpose of validation.  <span lang="AR-SA" dir="RTL">انرژی</span><span lang="AR-SA"> <span dir="RTL">برگشت</span> <span dir="RTL">پذیر</span> <span dir="RTL">به</span> <span dir="RTL">نوعی</span> <span dir="RTL">از</span> <span dir="RTL">انرژی</span> <span dir="RTL">گفته</span> <span dir="RTL">می</span> <span dir="RTL">شود</span> <span dir="RTL">که</span> <span dir="RTL">منبع</span> <span dir="RTL">تولید</span> <span dir="RTL">قابلیت</span> <span dir="RTL">آن</span> <span dir="RTL">را</span> <span dir="RTL">دارد</span> <span dir="RTL">که</span> <span dir="RTL">توسط</span> <span dir="RTL">طبیعت</span> <span dir="RTL">در</span> <span dir="RTL">یک</span> <span dir="RTL">بازه</span> <span dir="RTL">زمانی</span> <span dir="RTL">کوتاه</span> <span dir="RTL">مجددا</span> <span dir="RTL">به</span> <span dir="RTL">وجود</span> <span dir="RTL">آمده</span> <span dir="RTL">یا</span> <span dir="RTL">به</span> <span dir="RTL">عبارتی</span> <span dir="RTL">تجدید</span> <span dir="RTL">شود</span></span><span>. <span lang="AR-SA" dir="RTL">مدل</span><span lang="AR-SA"> <span dir="RTL">تحلیلی</span> <span dir="RTL">فرآیند</span> <span dir="RTL">تزریق</span> <span dir="RTL">آب</span> <span dir="RTL">به</span> <span dir="RTL">مخازن</span> <span dir="RTL">زمین</span> <span dir="RTL">گرمایی</span> <span dir="RTL">زمینه</span> <span dir="RTL">ای</span> <span dir="RTL">را</span> <span dir="RTL">فراهم</span> <span dir="RTL">می</span> <span dir="RTL">کند</span> <span dir="RTL">که</span> <span dir="RTL">فرآیندهای</span> <span dir="RTL">انتقال</span> <span dir="RTL">حرارت</span> <span dir="RTL">در</span> <span dir="RTL">محیط</span> <span dir="RTL">متخلخل</span> <span dir="RTL">بهتر</span> <span dir="RTL">شناخته</span> <span dir="RTL">شوند</span> <span dir="RTL">و</span> <span dir="RTL">یک</span> <span dir="RTL">مدل</span> <span dir="RTL">پایه</span> <span dir="RTL">ای</span> <span dir="RTL">برای</span> <span dir="RTL">مسائلی</span> <span dir="RTL">با</span> <span dir="RTL">پیچیدگی</span> <span dir="RTL">بیشتر</span> <span dir="RTL">باشد</span></span>. <span lang="AR-SA" dir="RTL">مدل</span><span lang="AR-SA"> <span dir="RTL">های</span> <span dir="RTL">ارائه</span> <span dir="RTL">شده</span> <span dir="RTL">پیشین</span> <span dir="RTL">به</span> <span dir="RTL">صورت</span> <span dir="RTL">عددی</span> <span dir="RTL">و</span> <span dir="RTL">نیمه</span> <span dir="RTL">تحلیلی</span> <span dir="RTL">به</span> <span dir="RTL">بررسی</span> <span dir="RTL">این</span> <span dir="RTL">موضوع</span> <span dir="RTL">پرداخته</span> <span dir="RTL">اند،</span> <span dir="RTL">حال</span> <span dir="RTL">آن</span> <span dir="RTL">که</span> <span dir="RTL">در</span> <span dir="RTL">این</span> <span dir="RTL">مطالعه</span> <span dir="RTL">حل</span> <span dir="RTL">کاملا</span> <span dir="RTL">تحلیلی</span> <span dir="RTL">مدل</span> <span dir="RTL">و</span> <span dir="RTL">با</span> <span dir="RTL">درنظر</span> <span dir="RTL">گرفتن</span></span>: <span lang="AR-SA" dir="RTL">پدیده</span><span lang="AR-SA"> <span dir="RTL">ی</span> <span dir="RTL">همرفت</span> <span dir="RTL">و</span> <span dir="RTL">هدایت</span> <span dir="RTL">و</span> <span dir="RTL">پراکندگی</span> <span dir="RTL">در</span> <span dir="RTL">درون</span> <span dir="RTL">شکاف،</span> <span dir="RTL">پدیده</span> <span dir="RTL">ی</span> <span dir="RTL">هدایت</span> <span dir="RTL">در</span> <span dir="RTL">درون</span> <span dir="RTL">بلوک</span> <span dir="RTL">ماتریس</span> <span dir="RTL">و</span> <span dir="RTL">انتقال</span> <span dir="RTL">حرارت</span> <span dir="RTL">بین</span> <span dir="RTL">بلوک</span> <span dir="RTL">ماتریس</span> <span dir="RTL">و</span> <span dir="RTL">شکاف</span> <span dir="RTL">ارائه</span> <span dir="RTL">شده</span> <span dir="RTL">است</span></span>. <span lang="AR-SA" dir="RTL">در</span><span lang="AR-SA"> <span dir="RTL">ادامه</span> <span dir="RTL">نیز</span> <span dir="RTL">با</span> <span dir="RTL">صرف</span> <span dir="RTL">نظر</span> <span dir="RTL">از</span> <span dir="RTL">پدیده</span> <span dir="RTL">ی</span> <span dir="RTL">پراکندگی</span> <span dir="RTL">و</span> <span dir="RTL">هدایت</span> <span dir="RTL">حرارتی</span> <span dir="RTL">شکاف،</span> <span dir="RTL">تاثیر</span> <span dir="RTL">پارامترهای</span> <span dir="RTL">سرعت</span> <span dir="RTL">تزریق</span> <span dir="RTL">آب</span> <span dir="RTL">و</span> <span dir="RTL">فاصله</span> <span dir="RTL">از</span> <span dir="RTL">دهانه</span> <span dir="RTL">چاه</span> <span dir="RTL">بر</span> <span dir="RTL">روی</span> <span dir="RTL">میزان</span> <span dir="RTL">درصد</span> <span dir="RTL">خطای</span> <span dir="RTL">بین</span> <span dir="RTL">این</span> <span dir="RTL">دو</span> <span dir="RTL">مدل</span> <span dir="RTL">بررسی</span> <span dir="RTL">شد</span></span>. <span lang="AR-SA" dir="RTL">همچنین</span><span lang="AR-SA"> <span dir="RTL">به</span> <span dir="RTL">منظور</span> <span dir="RTL">بررسی</span> <span dir="RTL">عملکرد</span> <span dir="RTL">تزریق</span> <span dir="RTL">آب</span> <span dir="RTL">سرد</span> <span dir="RTL">به</span> <span dir="RTL">مخازن</span> <span dir="RTL">زمین</span> <span dir="RTL">گرمایی</span> <span dir="RTL">از</span> <span dir="RTL">پارامتر</span> <span dir="RTL">بازیافت</span> <span dir="RTL">حرارتی</span> <span dir="RTL">استفاده</span> <span dir="RTL">شد</span> <span dir="RTL">و</span> <span dir="RTL">در</span> <span dir="RTL">انتها</span> <span dir="RTL">نیز</span> <span dir="RTL">به</span> <span dir="RTL">منظور</span> <span dir="RTL">اعتبار</span> <span dir="RTL">سنجی</span> <span dir="RTL">مدل،</span> <span dir="RTL">نتایج</span> <span dir="RTL">مدل</span> <span dir="RTL">تحلیلی</span> <span dir="RTL">با</span> <span dir="RTL">مدل</span> <span dir="RTL">عددی</span> <span dir="RTL">مقایسه</span> <span dir="RTL">شد</span></span>.</span> https://mej.aut.ac.ir/article_938_127869d42fe6f34db7a3100a374f3ea4.pdf