کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5483811 1522534 2016 47 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling of the thermal history of the Carboniferous Lorraine Coal Basin: Consequences for coal bed methane
ترجمه فارسی عنوان
مدل سازی تاریخ حرارتی حوضه ذغال سنگ کربن لورین: پیامدهای متان زغال سنگ
کلمات کلیدی
حوض پاریس، حوضه ذغال سنگ لورن، کربن سیاه، مدل سازی حرارتی، نفت و گاز، متان تخت زغال سنگ،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی
This paper proposes a new scenario for the thermal history of the Carboniferous Lorraine Coal Basin following the tectonic model developed by Averbuch et al. (2012) and establishes some consequences for the coal bed methane (CBM) exploitation. Organic matter maturation data (Vitrinite Reflectance) determined on eleven boreholes in the eastern Lorraine have been used to characterize the Lorraine Coal Basin evolution. Paleozoic and Mesozoic overburials have been calculated using a thermal modelling software (Petromod). Results show that (1) Paleozoic erosion may be estimated at a maximum of 1200 m which represents a low amplitude event, (2) a little erosion occurred between Upper Paleozoic and Lower Mesozoic: paleotemperature offset is about 20 °C and VR data range from 0.7 (Westphalian D) to 0.5 (Lower Triassic), (3) Cretaceous cover overburial reaches a maximum of 300 m and decreases eastwards and (4) the variation of heat flows is in agreement with the compressive and extensive phases of Paleozoic and the extensive phase of Mesozoic. Consequences on the petroleum system are the following: organic matter is immature in the Jurassic and Triassic sedimentary rocks, mature (oil window) in the Permian, Stephanian and Westphalian C-D, highly mature (gas window) in Westphalian A-B-C and overmature in Namurian-Westphalian A. The high methane adsorption capacity of coal and the presence of natural fractures inside coal seams demonstrated by coal tomography allow a high CBM potential in this basin. The Lorraine Coal Basin is therefore a target for coal gas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Coal Geology - Volume 168, Part 2, 15 November 2016, Pages 253-274
نویسندگان
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