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1

Wpływ zatapiania i odwadniania zrobów pogórniczych na wydobycie metanu ze złoża „Kaczyce I”

Łukomski R.

Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

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2017

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nr 2

20--27

PL

W artykule przedstawiono warunki geologiczno-górnicze eksploatacji metanu ze złoża „Kaczyce I”, położonego w granicach obszaru eksploatacji zlikwidowanej Kopalni Węgla Kamiennego „Morcinek”, oraz wpływ zatapiania i odwadniania zrobów tej kopalni na wydobycie metanu.

EN

Methane in the “Kaczyce I” deposit is available in anthropogenic collector in workings and excavations of the liquidated hard coal mine “Morcinek” and in absorbed form in hard coal deposits and dissolved form in waters of Miocene strata where it is being successively released and migrates to the collector. Methane mining from the deposit is carried out by the “Kaczyce 1” mine in the Kaczyce 1/01 well that is 680 m deep. The well was drilled to the workings of the 404/1-2 bed. “Wieczorek” hard coal mine (KWK) was drained between 1986 and 1998. It resulted in lowering the underground water level. Underground waters have started successively to fill available spaces of the methane collector as a result of liquidation of KWK “Morcinek” and stoppage of drainage. Flooding process was uncontrolled until 2008 when presence of water at the depth of 669 m was stated in the Kaczyce 1/01 borehole. It indicated that the workings of the 404/1-2 bed and bottom part of the well were flooded what resulted in impossibility of methane mining. The only way to prolong methane mining was to start draining the flooded excavations of the former KWK “Morcinek” mine. Three exploratory boreholes ( (OM-2’, OM-2’/1 – 65 m long, and OM-3 – 85 m long) to flooded excavations of the “Morcinek” Hard Coal Mine on the level of 950m were drilled in 2012 from drifts on level 1000 m in the “ČSM” coal mine (the Czech Republic). They have been used to drain the “Kaczyce I” deposit since March 2013. Approximately 2,593,000 m3 of water was drained from the tank in the “Kaczyce I” deposit by 31.08.2016. It lowered the water level in the excavations of the liquidated “Morcinek” hard coal mine and it made it possible to restart mining of methane in the Kaczyce 1/01 well in January 2015.

2

Estymacja stanu rozdzielczych sieci elektroenergetycznych - przegląd metod

Łukomski R., Wilkosz K.

Wiadomości Elektrotechniczne

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2005

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nr 1

10--14

PL

Omówiono klasyfikację metod estymacji stanu sieci rozdzielczej ze względu na wybór wektora stanu i użyte techniki obliczeniowe. Przedstawiono krótką charakterystykę metod estymacji stanu w zakresie możliwości i ograniczeń w zastosowaniu.

EN

Classification of methods used for estimation of distribution network condition is discussed with regard to state vector chosen and computation methods applied. Short characteristics of estimation methods are presented with regard to possible limitations of application range.

3

Economic evaluation of coalbed methane exploitation; an example from Poland

Grzybek I., Kuzak R., Łukomski R.

Polish Geological Institute Special Papers

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2002

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Vol. 7

93-102

EN

The paper presents the methodology of economic evaluation of coalbed methane exploitation in coal mines. The methodology consists of seven phases, which analyse: gassy conditions of coal deposit, coal exploitation scope, ventilation conditions of underground workings, productivity of degasification system as well as economics of both coal exploitation and methane recovery. In the result of the analyses classification, of methane resources and their subdivision into economic reserves and potentially economic resources can be done on the ground of either economic findings or methane content figures. The analyses also show, that methane extraction is always economic, but it can be proved only, if profit resulted coal exploitation during degasification is taken into account.