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Wyszukujesz frazę "zamknięty gaz" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Ilościowa charakterystyka porowatości i przepuszczalności utworów czerwonego spągowca potencjalnie zawierających gaz ziemny zamknięty
    Quantitative porosity and permeability characterization of potential Rotliegend tight gas reservoirs
    Autorzy:
    Such, P.
    Leśniak, G.
    Słota, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074768.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    porowatość
    przepuszczalność
    gaz zamknięty
    porosity
    permeability
    tight gas
    Rotliegend sandstones
    Opis:
    Withinaframe of the research project on Rotliegend tight gas, a data base comprising 760 full sets of reservoir and permeability parameters was created. Data from 55 wells were collected from interval of 1650-5003 m. The obtained results showed presence of clastic reservoirs sufficient for formation of "tight gas" type deposits in each of the analyzed wells. In most of the wells, reservoir rock series with non-zero permeability were detected. Parameters of pore space suggest the major role of compaction processes in pore space evolution, except for some areas where cementation processes were predominating. A high-permeability anomaly characterizing a separate group of eolian sandstones from the depths of over 4000 m anomaly may be explained as due to presence of pseudo- and micro-fractures.
    Źródło:
    Przegląd Geologiczny; 2010, 58, 4; 345-351
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Złoża węglowodorów z towarzyszącymi nagromadzeniami niekonwencjonalnymi (złoża hybrydowe) i ich dokumentowanie
    Hybrid hydrocarbon accumulations (conventional accompanied by unconventional ones) and reporting of their resources
    Autorzy:
    Kozimor, T.
    Potera, J.
    Nieć, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075691.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    gaz zamknięty
    złoża węglowodorów
    raportowanie zasobów
    tight gas
    hydrocarbon deposits
    resources reporting
    Opis:
    The boundaries of numerous hydrocarbon deposits are defined by lithology change, and cut off permeability 0.1 mD in the case of gas, or 1 mD in the case of oil, considered as a limit of reasonable hydrocarbon recovery. Beyond such limit, hydrocarbon accumulations obviously occur, but the possibility of their free movement is limited. Therefore, they may be treated as unconventional - tight gas, for example. Such hybrid, combined conventional and unconventional hydrocarbon accumulations are common in various formations. Their simultaneous exploitation is possible as demonstrated by the Przemyśl, Lubaczów and Słopnice gas fields. The occurrence of unconventional hydrocarbon accumulation in hybrid deposits should be clearly presented in geological reports and considered in exploitation planning.
    Źródło:
    Przegląd Geologiczny; 2017, 65, 10/1; 643--649
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwości występowania gazu zamkniętego w piaskowcach środkowego kambru zachodniej części obniżenia bałtyckiego (wyniesienie Łeby) : wstępna analiza na podstawie danych petrofizycznych i geofizyki otworowej
    Prospects of tight gas occurrence in the Middle Cambrian sandstones in the western part of the Baltic Depression (Łeba Elevation) : introductory analysis based on petrophysical and well logging data
    Autorzy:
    Adamczak-Biały, Teresa
    Pacześna, Jolanta
    Powiązania:
    https://bibliotekanauki.pl/articles/2076067.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    zamknięty gaz
    piaskowce kambru środkowego
    formacja Dębki
    formacja białogórska
    wyniesienie Łeby
    parametry petrofizyczne
    tight gas
    Middle Cambrian sandstones
    Dębki Formation
    Białogóra Formation
    Łeba Elevation
    petrophysical parameters
    Opis:
    The main purpose of this article is an approximation of petrophysical parameters in selected borehole sections in the Łeba Elevation. The parameters are among the most important factors affecting the possibility of unconventional gas accumulation. The other factors explaining the possibility of tight gas accumulations in the Middle Cambrian sandstones of the Łeba Elevation are hydrocarbon shows in cores and drilling mud and the presence of conventional hydrocarbon fields. The potential hydrocarbon resources are related to the Dębki and Białogóra Formations. They are composed of fine-grained sandstones. The thickness of the Dębki Formation ranges up to 100 m. The tickness of the Białogóra Formation does not exceed 10 m. The analysis of petrophysical parameters of these formations indicates that their tight gas saturation has a layered character. The Dębki Formation shows a better potential for tight gas accumulation.
    Źródło:
    Przegląd Geologiczny; 2020, 68, 9; 701--709
    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:
    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:
    Wstępne wyniki modelowań przestrzennych (3D) parametrów petrofizycznych skał podczas poszukiwań stref występowania gazu zamkniętego w polskim basenie czerwonego spągowca
    Preliminary results of 3D modeling of petrophysical parameters for tight gas prospecting in the Polish Rotliegend Basin
    Autorzy:
    Papiernik, B.
    Górecki, W.
    Pasternacki, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074766.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    model 3D
    modelowanie facji
    model petrofizyczny
    gaz zamknięty
    czerwony spągowiec
    3D model
    facies modeling
    petrophysical modeling
    tight gas
    Rotliegend
    Opis:
    The Rotliegend Basin is filled with terrigenic complex over 1200 m in thickness. The complex comprises sediments of eolian, fluvial and playa depositional systems (Fig. 1). Reservoir volume of the pore space accessible for the reservoir media is ca. 830-990 km3. Gas exploration in this stratigraphic unit is now focused at depths of around 3000-3800 m b.s.l., in the near-top zone. Poor reservoir properties, especially permeabilities, are here the limiting factor for conventional exploration. A change in the prospecting strategy to comprise tight gas targets moves research into the deeper zone covering the whole profile of the Rotliegend. The paper presents preliminary results of 3D modeling of lithofacies and related petrophysical parameters variability. The static model was created with the use of Petrel 2009.2. Structural framework was built using regional structural, isopach and facies maps. It was relatively detailed, comprising 9 576 000 cells organized in 3 zones and 60 layers. To estimate facies model, the authors used results of integrated environmental analysis of core data and logs from 117 wells (Fig. 2 ). Models of clay content (Vsh) and porosity (PHI) were based on logs from 75 wells. The obtained results show that the northern margin of the Eastern Erg is characterized by presence of numerous eolian strata with porosity ranging from 5 to 15%. Their quality, quantity and thickness decrease toward the north, along with increase in depth. Modeling results indicate that the dominating porous layers of eolian sandstones and fluvial inserts are often intercalated with "non-reservoir" layers revealing porosity below 5%. In this zone, a deeper part of the Rotliegend section should be investigated more thoroughly (Fig. 5, 6, 9). The Pomeranian sector of the Central Basin is dominated by playa and fluvial sediments (Fig. 7, 8, 10). Slightly clayey eolian strata make a few, laterally discontinuous intercalations. Gas accumulations could be expected within local, laterally confined interlayers of eolian and fluvial sandstones with porosity of around 5-12%. Due to the location in the near-base part of the Rotliegend section, close to Carboniferous source rocks, they may be filled with gas, forming so-called sweet spots. Probability of gas occurrence in Pomerania is high as indicated by the Międzyzdroje gas field or small accumulation found in Piaski-PIG2 well. The presented preliminary study allowed to test usability of 3D modeling in tight gas prospecting. Fully reliable results will be obtained after increasing precision of the models comprising detailed seismic interpretation, the use of seismic attributes, and inclusion of quantitative data in diagenetic processes and sedimentology of layers in the modeling process.
    Źródło:
    Przegląd Geologiczny; 2010, 58, 4; 352-364
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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