The technology of drilling wells for capturing methane from abandoned coal mines

• Autorzy: Siemek Jakub , Macuda Jan , Łukańko Łukasz , Hendel Jacek

Identyfikatory

DOI

10.24425/ams.2020.132708

• Języki publikacji: EN

Abstrakty

EN

The longwall mining system with fall of the roof is still the most common hard coal extraction system in Polish mining. Its utilization for selective coal seams’ mining results in the development of post-extraction gobs at different depths. Methane desorption phenomena from the coal seams in the stress release zones and migration of gas towards the area of operations, result in methane accumulating also after completion of coal exploitation. Methane which is not exploited from the gobs can migrate directly to the atmosphere e.g. through overlying layers, faults, workings or directly via an operated ventilation grid of an adjacent coal mine – contributing to the Greenhouse Gas effect. One of the methods to capture methane (Abandoned Maine Methane) from abandoned coal mines is to drill vertical wells through several post-extraction gobs from the surface. This paper presents the results of drilling operations at the AGH-Wieczorek-1 well, where first time in Poland, down-the-hole-hammer (DTH) with casing-while-drilling (CwD) technology were used to drill through several post-extraction gobs. The AGH-Wieczorek-1 well with 440.0 m MD was successfully drilled without any complications. Finally, three post-extraction gobs and two coal seams were drilled. Additionally, results from drillability tests, which were performed during drilling operations, are presented.

Słowa kluczowe

EN

casing-while-drilling; down-the-hole-hammer; post-extraction gobs; methane capturing; drillability test

PL

wiercenie; młot udarowy; metan

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2020
• Tom: Vol. 65, no. 1
• Strony: 89--101
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Siemek Jakub

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, al. Mickiewicza 30, 30-059, Kraków, Poland

autor

Macuda Jan

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, al. Mickiewicza 30, 30-059, Kraków, Poland

autor

Łukańko Łukasz

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, al. Mickiewicza 30, 30-059, Kraków, Poland

autor

Hendel Jacek

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, al. Mickiewicza 30, 30-059, Kraków, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)