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Wyszukujesz frazę "reserves and resources" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Evaluation of the Bogdanka Mine, Poland
    Autorzy:
    Philpott, K. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1204899.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    geological conditions
    reserves and resources
    Bogdanka coal mine
    Opis:
    During the early part of 1999 Steffen, Robertson and Kirsten (UK) Ltd (SRK) were commissioned by Price Waterhouse Coopers to carry out the technical due diligence study of the Bogdanka Coal Mine as part of their contract with the Treasury Ministry of Poland for pre-privatisation analysis. A visit was undertaken by four experienced consultants specialising in the fields of geology, mining, coal preparation and environment. The team also undertook a review of management, manning levels, performance and other broad issues affecting the operation of the mine. In this paper the author outlines the general geology of the mine, and attempts to show how an experienced consultant comes to terms with a meaningful assessment of a mine and coalfield of which he has little or no previous knowledge, particularly given the very short time available for the commission.The relevance of such aspects as mineral rights and concessions, the exploration history, cover deposits, coal bearing strata, geological structure, coal quality and potential hazards to the assessment will be examined. The assessment of reserves and resources to standards acceptable to international banking organisations will be looked at in more detail. Finally some of the critical non-geological factors of the assessment will be outlined.
    Źródło:
    Polish Geological Institute Special Papers; 2002, 7; 199-206
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Podstawy metodyki poszukiwań, rozpoznawania i dokumentowania zasobów złóż w odniesieniu do złóż gazu ziemnego w łupkach gazonooenych
    Backgrounds of prospecting, exploration and reporting resources and reserves of shale gas deposits
    Autorzy:
    Nieć, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075159.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    shale gas deposits
    prospecting
    exploration
    resources
    reserves
    złoża gazu łupkowego
    zasoby
    rezerwy
    Opis:
    Gas in shales occurs as a constituent of rock and its resources can be estimated in a similar way as the metal content in ore deposit. The cutoff gas content in rock is the basic parameter defining deposit boundaries. It is proposed that the cutoffs in gas-bearing rocks are 2 m3 gas/t and 15-m deposit thickness. In case of lack of sufficient data, the deposit boundaries for resources estimation may be delineated in a defined distance from prospecting boreholes, supported by geophysical data, if possible. Discovered gas resources may be evaluated by volumetric methods. For reserve estimation, dynamic methods should be applied based on shale fracturing results. Following the stages of prospecting and exploration, decreasing uncertainty of the deposit resources/reserves evaluation may be expressed by D, C, B and A categories, or with the use of PRMS classification system.
    Źródło:
    Przegląd Geologiczny; 2014, 62, 8; 403--413
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    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
    Tytuł:
    Rola Państwowego Instytutu Geologicznego w badaniach genezy i określeniu wielkości polskich zasobów solnych po II wojnie światowej
    Contribution of the Polish Geological Institute to studies on the origin and assessment of Polish salt resources after World War II
    Autorzy:
    Czapowski, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/2075957.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    geneza
    rezerwy
    sole
    Polska
    genesis
    reserves
    salts
    Polska
    Opis:
    The Polish Geological Institute (PIG),established in 1919 as the geological survey, during the last 100 years carried out geological prospection of Poland, worked out the actual knowledge of geology and hydrogeology of the country, as well as discovered most of mineral deposits, essential to the national economy. This synthetic review presents the PIG achievements in prospecting and documenting of most deposits of rock and potash salts as well as in successful creation and application of new methodology and technics (e.g. chemostratigraphy, resource aspects of facies analysis, 3D images of salt deposits and structures, interferometry) to predict salt occurrences with optimal resource parameters, explain the tectonic and stratigraphic problems and to propose tools favoring the mining safety. The data regarding regional geology, collected during a century, enabled estimation of accessible prospective resources of both salt types and selection of optimal salt occurrences forfuture management as storages for hydrocarbons, gas (air, hydrogen) and safe waste disposals.
    Źródło:
    Przegląd Geologiczny; 2019, 67, 4; 241--251
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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