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Wyszukujesz frazę "coalbed methane reserves" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
World coalbed methane projects
Autorzy:
Rychlicki, S.
Twardowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1204901.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coalbed methane reserves
coalbed methane projects
coalbed methane technology
Opis:
Worldwide coalbed methane resources, once considered as a new "unconventional" natural gas resources, are now being recognised as a potential source of methane in many countries with extensive coal basins. Coal deposits occur abundantly in many locations throughout the world. Unfortunately, for most of the countries (and especially European countries) the geological conditions are not as simple as in the American basins (complex structure of the basins, very low coal permeability) and unmodified use of the US coalbed methane technology could lead to disappointing results.Good gas productivity in coalbed methane projects will probably only be achieved through the adaptation and development of existing technologies in the exploration, drilling and production fields. Using strictly classical oil and gas technologies does not seem to be capable of producing adequate results. Exploitation of CBM resources will be a challenge for the next century. Success depends on our ability to change our way of thinking and to find solutions for the real difficulties of CBM exploitation.In the United States, the existing natural gas pipeline system has provided a ready means for distributing and marketing the extracted CBM. However, establishing natural gas markets outside of the USA will be more challenging. In locations such as eastern Australia, China or southern Africa there are no existing pipeline facilities for the distribution and sale of the gas. The construction of hundreds of miles of pipeline may be required to connect the CBM production sites to the Consumers' market.In the paper is presented information about the most interesting CBM projects in the world.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 215-224
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic evaluation of coalbed methane exploitation; an example from Poland
Autorzy:
Grzybek, I.
Kuzak, R.
Łukomski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1204917.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coalbed methane
reserves estimation
recovery economics
Opis:
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.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 93-102
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metan pokładów węgla: zasoby i eksploatacja
Coalbed methane: resources and recovery
Autorzy:
Hadro, J.
Wójcik, I.
Powiązania:
https://bibliotekanauki.pl/articles/2075077.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coalbed methane (CBM)
CBM
coal mine methane CMM
CMM
CBM resource
CBM reserves
CBM production
metan pokładów węgla
metan kopalniany
zasoby CBM
rezerwy CBM
produkcja CBM
Opis:
Gas produced from coal can be subdivided into three categories: coalbed methane (CBM), coal mine methane (CMM) and abandoned mine methane (AMM). CBM is extracted from virgin coal using wells drilled from the surface. In recent years horizontal drilling is widely used as a primary CBM recovery technique. A pair of wells - a vertical production well intersected by a horizontal multilateral well - is considered the most effective in dewatering a coal reservoir and thus enables maximizing its productivity. Although CBM world resources are huge (100-216 bcm), only a few countries produce coalbed gas commercially. While the US is still the leader, Australia has the fastest CBM production growth. It has been observed that many mature CBM plays reveal highly variable productivity, possibly due to coal heterogeneity. Therefore, CBM reserves/resources should be estimated using probabilistic methods. In spite of its substantial CBM resource potential, Poland has produced only coal mine methane (CMM) whereas significant efforts of CBM exploration conducted in the 1990s failed to flow gas in commercial quantities due to low permeability. Dart Energy operates a CBM exploration license in the Upper Silesia and has recently finished testing the CBM production pilot using a surface-to-inseam horizontal well with vertical production well intersection. This state-of-the-art CBM completion technology has been used for the first time in Poland and, hopefully, will unlock the sizeable CBM resource of the Upper Silesian Coal Basin.
Źródło:
Przegląd Geologiczny; 2013, 61, 7; 404--410
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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