کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4921864 1429521 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermo-hydro-mechanical coupled mathematical model for controlling the pre-mining coal seam gas extraction with slotted boreholes
ترجمه فارسی عنوان
مدل ریاضی ترکیبی ترمو هیدرو مکانیکی برای کنترل استخراج گاز ذغال سنگ قبل از معدن با گمانه های شکسته
کلمات کلیدی
گاز زغال سنگ، استخراج گاز، مدل ترمو هیدرو مکانیکی، گودال های شکسته،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی

Drainage influence radius is the basic parameter for borehole arrangement, while the effect of high pressure water jet slotting technology on borehole drainage influence radius has not been studied systematically. In this paper, a fully thermo-hydro-mechanical (THM) coupled model which represents the non-linear responses of gas extraction was implemented to demonstrate the reliability of this model through history data matching. Based on this model, the susceptibilities of gas extraction with single slotted borehole, including the permeability, the gas pressure, the temperature, the coal adsorption characteristics and the radius of slot, were quantified through a series of simulations. The simulation results revealed that increasing the permeability, initial gas pressure and temperature could develop the influence radius of single slotted borehole. This finite element model and its simulation results can improve the understanding of the coal-gas interactions of underground gas drainage and provide a scientific basis for the optimization of drainage systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mining Science and Technology - Volume 27, Issue 3, May 2017, Pages 473-479
نویسندگان
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