کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1731784 1016097 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three dimensional experimental and numerical investigations into hydrate dissociation in sandy reservoir with dual horizontal wells
ترجمه فارسی عنوان
مطالعات سه بعدی تجربی و عددی برای جداسازی هیدرات در مخزن شنی با چاه افقی دوگانه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی


• Hydrate dissociation by experiment and numerical simulation is carried out.
• Depressurization in conjunction with warm water stimulation is employed.
• The dual horizontal wells are set as the well configuration.
• The results of numerical simulation and experiment agree well.
• Hydrate dissociation evolves by means of ablation with double-moving boundary.

In this study, both three dimensional experimental and numerical investigations of hydrate dissociation have been carried out by depressurization in conjunction with warm water stimulation using dual horizontal wells. Hydrate has been synthesized in the porous sediment in a CHS (Cubic Hydrate Simulator). The results of gas and water production, hydrate dissociation, and temperature distribution by numerical simulation are in good agreement with the experimental results. The results show that hydrate dissociation evolves by means of ablation with double-moving boundary. One dissociation interface moves from the injection well to the neighboring regions, and the other dissociation interface spreads from the boundary to the central reservoir. The assessment of the energy ratio shows that the depressurization in conjunction with warm water stimulation using dual horizontal wells is a promising method for hydrate dissociation. Sensitivity analyses show that raising the injection temperature causes a sharply decline of energy ratio, although it increases the gas production rate at a certain time. Additionally, reducing the intrinsic permeability of the reservoir can decrease the energy ratio and increase the time for the completion of hydrate dissociation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 90, Part 1, October 2015, Pages 836–845
نویسندگان
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