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Wyświetlanie 1-15 z 116
Tytuł:
Seismic and geochemical anomalies related to vertical migration of gas in the Radlin gas field
Autorzy:
Pietsch, K.
Strzetelski, W.
Powiązania:
https://bibliotekanauki.pl/articles/2059327.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
vertical gas migration
seismic anomalies
surface hydrocarbon gas anomalies
geochemical anomalies
gas chimneys
Radlin gas field
Opis:
In the Radlin Rotliegend gas field (southwestern Polish Lowlands, Fore-Sudetic Region, Poznań Depression), modelling and reinterpretation of seismic data combined with surface gas surveys (free gas method) help identify "gas chimneys" and locate pathways of vertical migration. An almost impermeable Zechstein evaporite cover reduces the stream of vertical gas migration so that a dry surface geochemical zone occurs at the surface and no seismic disturbances are observed directly above the pay zone of the gas field. The surface gas anomalies form a halo-type pattern surrounding the gas field. The majority of surface hydrocarbon microseepages from the subsurface agrees with the seismically visualised geological structure. The belts of surface gas anomalies and the dry zones separating them run along the strike of Permian structures and faults. Vertical pathways of gas migration are recognisable as zones of seismic discontinuity and chaotic distribution of distinct reflections and diffracted waves. Seismic "gas chimney" effects coincide with surface hydrocarbon gas anomalies. Particularly, they appear above the upper terminations of faults disturbing the Zechstein deposits. The faults create the main a venues for secondary vertical migration of gas from the reservoir to the surface. "Gas chimneys" are observable in a shallow zone above the Muschelkalk (Tm) where higher gas saturation of more porous rocks produces a seismically traceable velocity effect.
Źródło:
Geological Quarterly; 2001, 45, 1; 1-14
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unconventional hydrocarbon resources of Greece
Autorzy:
Tsirambides, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059636.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
shale gas
methane hydrates
coal bed gas
Greece
Opis:
Intensive exploration of probable conventional hydrocarbon reservoirs in Greece is taking place, through the interpretation of seismic profiles and of abundant surface geological data. The unconventional hydrocarbon potential of the country is unknown, as detailed investigations are lacking. The most important rock formations which may contain shale gas are found in the land and offshore basins of northeastern, north-central, and western Greece. A re-evaluation of the data from all boreholes is needed, on the basis of new information, with the aim of identifying possible reserves of unconventional hydrocarbons retained in highly compacted fine-grained strata. Methane hydrates have been detected in the submarine Anaximander Mountains, east of Rhodes Island. They cover an area of about 46 km2 and the volume of methane is estimated at 2.6–6.4 trillion m3. The low content of the Greek lignites in gaseous hydrocarbons and the widespread tectonics in the Hellenic Peninsula are the main factors which prevented large gas accumulations in its 14 main coal deposits. However, additional research is needed to evaluate the coal-bed gas potential of the country.
Źródło:
Geological Quarterly; 2015, 59, 3; 479--490
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interpretacja i wizualizacja danych otworowych w utworach niższego paleozoiku obszaru kratonu wschodnioeuropejskiego i karbonu podłoża monokliny przedsudeckiej
Interpretation and visualization of well data in the lower Palaeozoic of the East European Craton and in the Carboniferous of the Fore-Sudetic Homocline basement
Autorzy:
Roman, M. G.
Powiązania:
https://bibliotekanauki.pl/articles/2075494.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
otwory wiertnicze
gaz łupkowy
tight gas
well logging
shale gas
Opis:
In order to determine the lithological complexes and to evaluate the prospective shale/tight gas zones, analysis of well data and a multi-well correlation have been performed. Over 30 wells were used for the analysis. Lithostratigraphic units have been verified and correlated in the wells. In some of them, TOC (Total Organic Carbon), effective porosity and lithological profiles have been determined after calibration with the laboratory analysis performed on core samples. Vast majority of the gathered data were visualized in 10 correlation lines.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 976--981
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategia poszukiwań złóż gazu ziemnego w łupkach
Shale gas exploration strategy
Autorzy:
Hadro, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074762.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz niekonwencjonalny
gaz łupkowy
wiercenia poziome
stymulacja pęknięć
zasoby gazu łupkowego
wydobycie gazu
poszukiwania gazu łupkowego
ekonomika gazu łupkowego
unconventional gas
shale gas
horizontal drilling
fracture stimulation
shale gas resource
gas production
shale gas exploration
shale gas economics
Opis:
Unconventional gas by definition is economically less profitable and more difficult to extract then conventional gas. However, gradual depletion of conventional gas fields as well as large resources of unconventional gas make the latter an attractive target. Coalbed methane (CBM), tight gas and shale gas have been successfully developed in the US over the past two decades. Shale gas production has grown at the fastest pace in recent years and reached over 2 tcf in 2008, which is 6-fold increase since 1998. Key to success of unconventional gas development was Noncoventional Fuels Tax Credit introduced by the US government in 1980. This initial production growth of unconventional gas and shale gas in particular, was later sustained by the development of horizontal drilling and fracture stimulation technologies, economy of scale and increasing gas prices. Economics of producing shale gas is marked by bigger resource potential and, at the same time, lower production rates and higher drilling costs as compared to conventional gas, which entails adopting cautious investment strategies. Shale gas exploration strategies are also different from those of conventional gas and, initially, require an extensive source rock analysis and a big land position to identify "sweet spots". Shale gas exploration in Poland is in its infancy, being focused on the Silurian-Ordovician shale formation which is poorly explored and thus poses a significant exploration risk. Therefore, exploration companies have used a cautious approach which is reflected in planning of the concession activities divided in a few phases, with each successive phase contingent on the positive results of the preceding one. These phases include: existing data analysis, seismic, drilling an exploratory well with extensive core analyses prior to a pilot testing program using horizontal wells. On a technical level of shale gas exploration, the integration of many disciplines is required for commercial success. Potential barriers to shale gas exploration in Poland have been identified such as: regulations which are in favor of the domestic service companies impeding competition, changeable and unclear environmental protection regulations, as well as insufficient liberalization of the domestic gas market.
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 250-258
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bilans zasobów niekonwencjonalnych (i innych) złóż gazu w Polsce
Assessment of unconventional gas resources in Poland
Autorzy:
Wójcicki, A.
Powiązania:
https://bibliotekanauki.pl/articles/2075324.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
niekonwencjonalne zasoby gazu
gaz zamknięty
gaz łupkowy
metan pokładów węgla
gaz z dużych głębokości
unconventional gas resources
tight gas
shale gas
coal bed methane
deep gas
Opis:
The paper summarizes information on gas resources in Poland, especially unconventionals. There are proven, though not very large, resources of conventional hydrocarbons and coalbed methane – the inventory is carried out by Polish Geological Survey. Recently undiscovered shale gas and tight gas resources have been assessed by Polish Geological Survey and other organizations. In previous decade undiscovered coal bed methane resources have been estimated as well. There were a number of studies on undiscovered conventional gas resources carried out in previous decades providing ever higher estimations of the undiscovered gas potential. These studies were also targeted on an intermediate category of gas resources – deep gas and/or tight gas resources in conventional traps. Putting all together, it seems the undiscovered potential of gas resources (both unconventional and conventional) in Poland is a quite impressive and various types of hydrocarbon resources coexist in respective hydrocarbon basins.
Źródło:
Przegląd Geologiczny; 2015, 63, 10/3; 1215--1219
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niemiecki projekt zmiany przepisów w Prawie Wodnym i Prawie Ochrony Środowiska dotyczących zakazu szczelinowania hydraulicznego i monitoringu ryzyka : implikacje do wydobycia gazu z łupków
The draft of changes in theWater Law and the Environmental Law in Germany, regarding prohibition of hydraulic fracturing and risk monitoring: implications to the shale gas extraction
Autorzy:
Mamczar, M.
Jędrysek, M. O.
Powiązania:
https://bibliotekanauki.pl/articles/2075341.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
gaz łupkowy
prawo
szczelinowanie
gaz niekonwencjonalny
shale gas
law
hydraulic fracturing
unconventional gas
Opis:
In Germany there is no agreement among politicians and local government officials regarding the safety and economic sense of the exploration and production of shale gas. However Germany does not reject completely the need to invest in the development of this sector. The political parties speak cautiously about the hydraulic fracturing, because they do not want to lose their voters. However, in a country which is in 70% dependent on the import of natural resources, the industry interest in the search for alternatives to Russian gas and oil energy sources increases. It is no secret that after the withdrawal from nuclear power, the German economy has to change its energy profile. Currently, Germany increases the use of coal, but could it have economic sense? Because of green certificates and European trend to reduce the emission of CO2, the Germans do not depart from the investment in shale gas. It is confirmed by the publication of a draft of amending the acts in November 2014. However some part of German society expected much more strict rules, including a total ban on hydraulic fracturing. The German law should, mobilize the Polish Parliament (Sejm) to develop a comprehensive law regulating the mining and geological activity that is in line with EU law.
Źródło:
Przegląd Geologiczny; 2015, 63, 7; 391--396
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka petrofizyczno-mineralogiczna wyznaczonych perspektywicznych kompleksów węglowodorowych na podstawie wybranych wyników badań laboratoryjnych
Petrophysical and mineralogical characterization of prospective hydrocarbon complexes estimated based on selected laboratory research results
Autorzy:
Dyrka, I.
Powiązania:
https://bibliotekanauki.pl/articles/2075501.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrofizyka
mineralogia
gaz łupkowy
tight gas
porowatość
petrophysics
mineralogy
shale gas
shale porosity
Opis:
This article hasbeen prepared based on the chapter devoted to research of petrophysical properties of shale and tight sandstones within the project: “Identification of prospective zones for unconventional hydrocarbon accumulations in Poland, stage I.” Petrophysical and mineralogical characterization of particular prospective complexes in the Baltic, Podlasie-Lublin basin and the Carboniferous basin of south-western Poland (Fore-Sudetic Homocline basement), is based on selected laboratory tests of rocks, performed by the Oil and Gas Institute – NRI in Kraków. These analyses included investigations of total porosity and effective porosity, helium porosity, total permeability, silica content, clay content and cumulative content of quartz, and feldspars and carbonates. For particular complexes mean values of individual parameters were calculated. Then, an assessment was made to find out whether they meet the established criteria and whether the results correlate with each other in the boreholes across each area.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 982--986
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skład gazów rozpuszczonych w wodzie termalnej eksploatowanej odwiertem KT-1 w Karpnikach na obszarze granitu karkonoskiego w Sudetach
Composition of gas dissolved in thermal water extracted from borehole BKT-1 at Karpniki (Karkonosze granite area, Sudetes)
Autorzy:
Przylibski, T. A.
Żak, S.
Kowalska, A.
Domin, E.
Powiązania:
https://bibliotekanauki.pl/articles/2075848.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
skład gazu
gaz szlachetny
azot
hel
argon
radon
gas composition
noble gas
nitrogen
helium
Opis:
The detailed research of a gas mixture released from the thermal water, which is extracted from borehole KT-1 at Karpniki, showed the predominance of nitrogen (98.08% by volume) with subordinate Ar (1.52%) and He (0.32%) and trace amounts of CO2 (0.07%) and CH4 (0.01%). The 222Rn radionuclide is also dissolved in this water, showing an activity concentration of 245 Bq/dm3 at the outflow and 256 Bq/dm3 in the aquifer. A small value of the gas exponent (0.014), and also a value of the δ coefficient close to 1 (0.93) were calculated based on the dissolved Ar and N2 content in the water examined, as well as on concentrations of argon and nitrogen in water, assuming that atmospheric air is present above the water surface with a contemporary composition and under normal pressure. The data obtained indicate that these gases and additionally CO2 and CH4 are of atmospheric origin. These gases were either dissolved in rainwater, which infiltrated deep into the Karkonosze granite massif, orformed within the organic layer covering this exposed intrusion. This is evidenced by concentrations of these gases that can be comparable to their atmospheric equivalents. Helium is a radiogenic gas formed as a result of nuclear transformation of isotopes assigned to natural radioactive series. The radiogenic and also radioactive gas is represented by the 222Rn radioisotope which is released from reservoir rocks, in an amount of 5% of the atom poolforming in the reservoir rock, into thermal water that subsequently reaches borehole KT-1 from a distance of 34 m at most. The thermal paleoinfiltration water has been heated up as a result of the conduction, and the source of heat is the temperature of the rocks resulting from an average geothermal gradient of 2.96°C per 100 m. The results of the authors’research indicate that there are no traces of inflow of hotfluids (especially water) from the deeper layers of the crust or from the mantle. If the examined thermal water is considered as paleoinfiltration water, its static resources may be limited, non-renewable.
Źródło:
Przegląd Geologiczny; 2018, 66, 8; 483--494
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncesje na poszukiwanie i rozpoznawanie złóż węglowodorów w Polsce w tym shale gas i tight gas
Autorzy:
Zalewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/2066286.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
złoża węglowodorów
gaz łupkowy
gaz uwięziony w szczelinach
hydrocarbon deposits
shale gas
tight gas
Źródło:
Przegląd Geologiczny; 2010, 58, 3; 213-215
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie gazu ziemnego zamkniętego w piaskowcach czerwonego spągowca Polski
Tight gas accumulations in Rotliegend sandstones of Poland
Autorzy:
Kiersnowski, H.
Buniak, A.
Kuberska, M.
Srokowska-Okońska, A.
Powiązania:
https://bibliotekanauki.pl/articles/2074767.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
piaskowiec czerwonego spągowca
gaz zamknięty
niekonwencjonalne złoża gazu
Rotliegend sandstones
tight gas
unconventional gas fields
Opis:
The paper presents the first unconventional tight gas field discovered in tight low permeability (K > 0.1 mD) eolian sandstones in the Polish Upper Rotliegend Basin. The tight gas field has been found in area east of Poznań (Siekierki zone). In that area, reservoir eolian sandstones lost almost all permeability and partly porosity due to compaction and illitization processes. The origin of the gas trap was analyzed in many variants, from which one was selected as the most probable. It is assumed that main source for illite crystallization were Zechstein hypersaline brines rich in Ca, Na, K and SO4, which infiltrated the Rotliegend sandstones on tectonically uplifted block. The gas generation and migration were taking place at the same time as processes responsible for decrease in sandstone permeability have been ceasing. As a result, tight gas field from the Siekierki zone can be defined as an unconventional gas field occurring in conventional structural trap. It is expected that tight gas fields could also originate in deeper parts of the Polish Rotliegend Basin but under conditions of BCGS (Basin-Centered Gas System). Gas fields originating under this system are without classic seal and its capacity can be significantly bigger than those of conventional gas fields. The type of organic matter occurring in mature Carboniferous rocks was determining composition of gas formed at gas generation phase. It also affected the chemical content of infiltrating fluids and, in this way, had significant influence on the course of diagenetic processes. In the fault zones, diagenetic cements formed impermeable barriers which separate conventional and unconventional gas fields, as well as barriers separating individual parts of these fields. Such compartmentalization was surely important for origin of the tight gas reservoirs in the Polish Upper Rotliegend Basin.
Źródło:
Przegląd Geologiczny; 2010, 58, 4; 335-346
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petroleum geology of the Polish part of the Baltic region - an overview
Autorzy:
Pikulski, L.
Karnkowski, P. H.
Wolnowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/2059075.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Baltic Region
petroleum geology
shale gas
Opis:
The Polish part of the Baltic region is located within the contact zone between two large geological units: the Precambrian platform and the Paleozoic platform. It comprises the Polish sector of the southern Baltic Sea and the adjacent onshore part of Northern Poland (Western and Eastern Pomerania). The fundamental geological pattern is defined by the Teisseyre-Tornquist Zone, separating the East European Craton from the Paleozoic platform. As a result of exploration activity in the onshore Pomerania region, four oil fields in Cambrian sandstones, seven gas fields in Carboniferous sandstones, six gas fields in Rotliegend sandstones, and eleven oil fields within the Zechstein Main Dolomite horizon have been discovered. The petroleum play of the southern Baltic Sea region and adjacent areas must be considered separately for Eastern and Western Pomerania. In the Peribaltic Syneclise we can only take into consideration organic matter appearing in lower Paleozoic rocks but their geothermal history refers to the period from the Vendian up to the recent. The present extent of the "oil window" in the Upper Cambrian rocks is mainly restricted to the offshore area. Reservoir properties of the "gas window" Cambrian rocks are rather low due to intensive diagenetic processes. Acquisition of gas should be possible by processes of hydraulic stimulation (tight gas). Lower Paleozoic rocks rich in organic matter (Ordovician and Silurian), especially in the border zone of the EEC (Ro >>gt; 1.3%), could be an area of unconventional gas fields (shale gas). The Western Pomerania petroleum play shows two separate source rocks units. The older one embraces Carboniferous deposits with organic matter of terrestrial origin and generated gases accumulated in the Rotliegend and Carboniferous traps. The second petroleum system is located within the carbonates of the Zechstein Main Dolomite (Ca2). This is a closed system, meaning that the source rocks are at the same time the reservoirs sealed by Zechstein evaporates. Hitherto discovered hydrocarbon deposits in the Polish part of the Baltic region have confirmed good perspectives regarding oil and gas hydrocarbon zones. New, conventional and unconventional discoveries remain possible.
Źródło:
Geological Quarterly; 2010, 54, 2; 143-158
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wydzielanie się gazów z wód podziemnych
Gas exhalation from groundwaters
Autorzy:
Żak, S.
Powiązania:
https://bibliotekanauki.pl/articles/2062918.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wydzielanie się gazu
stężenie gazu
ciśnienie nasycenia
wody podziemne
gas exhalation
gas concentration
saturation pressure
groundwater
Opis:
Podczas wypływu nagazowanych wód podziemnych na powierzchnię następuje wydzielanie się gazów w formie lotnej. Proces ten jest związany z obniżaniem się ciśnienia wzdłuż drogi przepływu. W przypadku, gdy w wodzie rozpuszczone są różne gazy, ich wydzielanie jest nierównomierne. W artykule przedstawiono podstawy teoretyczne i wyprowadzono równania umożliwiające określenie stężenia i ilości wydzielonych gazów z wody w zależności od ciśnienia. Wykonano również przykładowe obliczenia dla wód z rejonu Rabki- -Zdroju. We wnioskach sformułowano uwagi dotyczące sposobu badania składu gazowego wód podziemnych.
During the outflow of gas-saturated groundwater to the ground surface, gases are exhaled from it. This process is related to a pressure fall along the groundwater path-flow. In the case when water contains a number of different gases, their exhalation is nonuniform. The article presents theoretical background and proposes equations useful for determining the concentration and quantity of gases exhaled from water in relation to pressure. Model calculations were carried out for groundwaters from Rabka-Zdrój spa. Finally, remarks related to methods of examining the composition of gas mixture dissolved in groundwater have been included.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2009, 436, z. 9/2; 583-588
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coal mine gas from abandoned mines
Autorzy:
Backhaus, C.
Mroz, A.
Willenbrink, B.
Powiązania:
https://bibliotekanauki.pl/articles/1204913.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coal gas mine
sucking stations
utilization
Germany
Opis:
Coal mine gas usually consists of methane, nitrogen and carbon dioxide. Its appearance is a constant and well-documented concomitant of coal-mining. In the Ruhr Basin, Germany, after the shut-down of the mines, up to 1,000 cubic metres per hour of coal mine gas continue to escape from the pits and get into the atmosphere through special degassing systems. A not insignificant part of coal mine gas migrates in addition diffuse at the surface. Thus, a natural energy carrier is given up for lost. To make matters worse, the methane component of the coal mine gas could form an explosive mixture with air and it is ecologically harmful since it significantly contributes to the greenhouse effect: It is estimated that methane is approximately 21 times more harmful then carbon dioxide. Since 1994, engineers of the Fraunhofer Institute for Environmental, Safety, and Energy Technology in Oberhausen, Germany, have been working on new concepts regarding:o the deliberate migrations of coal mine gas also effectively minimises potential dangers resulting from its uncontrolled emission, accumulation and forming explosive mixtures with air; o the energetic utilisation of coal mine gas from abandoned mines in CHP units (Combined Heat and Power Generation).Since 1998 UMSICHT operates several sucking-stations the danger defence and for potential inquiry of coal mine gas from abandoned mines. Therefore coal gas is sucked off of boreholes in the surface area (depth < 50 m) and boreholes into old workings of the abandoned mines. A result of the different sucking tests is the minimisation of the diffuse gas migrations. By the direct sucking of the old pit a substantially bigger area could be hold gas free than by sucking off surface boreholes. The sucking off of abandoned coal mines has resulted an increase of the CH4-concentration from 40% to more than 70% over the testing time independent of the atmospheric conditions. During the time of sucking (more than 3 month) an influence to the pressure in the abandoned mine could not verified. Water ring pumps and roots-compressors in different kinds of operating are tested in the sucking-stations.Coal mine gas is estimated to be available for a long time. An economic utilisation seems to be possible within the next decades. The gas deposit within the coal mines of North-Rhine Westphalia is enormous: It is considered to amount to approximately 120 million tons of methane per year, most of it energetically utilisable. The utilization of coal mine gas is one way to reach the aims of the Kyoto-Conference. Therefore the energy generation with coal mine gas is supported in Germany by a guaranteed price for the produced electrical energy since 2000. Because of the decreasing coal-prices in many countries a lot of mines were abandoned in the last years. Dezentralizied CHP-concepts created by UMSICHT are one way for an effective and quick solution of the problems of these mines.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 33-40
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
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