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    Wyświetlanie 1-4 z 4
    Tytuł:
    Analytical prediction model of UGS performance
    Autorzy:
    Blicharski, J.
    Rybicki, C.
    Stec, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/298635.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    underground gas storage
    gas withdrawal
    working and base gas capacity
    vertical and horizontal well deliverability
    Opis:
    The purpose of underground gas storage in porous media is to allow compensation for peak shaving in gas consumption. Especially during the winter months, the stored gas must then be supplied at fuli capacity for short periods. Currently storage capacities of existing UGS facilities in Poland are not fully sufficient for proper regulation of gas demand. The more they do not overcome long term limitation in gas supply from import. There is therefore a need for increasing capacity of existing UGS or development of new ones. This paper presents an analytical model based on equations of material balance combined with well inflow and tubing performance equations for modeling gas storage operations. Presented model was used to maximize the capacity and efficiency of natural gas storage developed in partially depleted gas fields located in the region of south-eastern Poland for a given reservoir/well configuration. On the basis of this model variant scenario of gas storage operation with the use of vertical and horizontal wells were demonstrated.
    Źródło:
    AGH Drilling, Oil, Gas; 2014, 31, 2; 325-339
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of selected problems encountered while testing natural gas-condensate fields in the Western Carpathians
    Autorzy:
    Rybicki, Cz.
    Dubiel, S.
    Blicharski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/298763.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    oil prospecting
    Western Carpathians
    gas-bearing Devonian strata
    natural gas-condensate field in Stryszawa
    testing technology
    thermodynamic conditions of gas condensation
    Opis:
    The potential change of natural gas composition in the near-wel lbore zone creates a big problem with the selection of appropriate initial value of counterpressure exerted by the displacement fluid on reservoir during the test, and also with the interpretation of the reservoir and production tests results. The analysis of the industrial data reveals that the effect of condensate production in the near-wellbore zone could take place while using too high counterpres-sure during DST tests, as a consequence of using a relatively high column of water displacement fluid in the DST column, i.e. about 2500 m. This thesis can be confirmed after further detailed theoretical analysis of the occurring thermodynamic conditions. The paper addresses technological and interpretation problems encountered during drill stem tests (DST) of gas-bearing Devonian strata, on the example of the Stryszawa field in the Western Carpathians. Special attention was paid to the possible changes of gas compo sition during flow tests and the cases of gas condensation of heavier fractions during build-up tests. Attempts were made at explaining sudden drops of pressure at the build-up stage along with the thermodynamic conditions responsible for this effect. The authors explained the necessity of using an appropriate Ful-Flo sampler in the DST set for collecting gas samples at any time of the test, and devices for continuous measurement of temperature. The use of new types of drill stem testers and appropriate interpretation methods, which would account for a detailed analysis of technological and reservoir conditions allows for more efficient oil prospecting and deciding about enhancement methods in hydrocarbon production. The analysis of thermodynamic conditions on the bottom of the wellbore allow s for selecting proper counterpressure values in view of the condensation of heavier gas fractions in the near wellbore rocks. The analysis of conditions in which heavier gas fractions undergo condensation is approximate and general because the gas samples were collected at the outlet of the DST string (in surface conditions), without a Ful-Flo sampler and without temperature measurements.
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 3; 575-580
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The analysis of CO2 injection in depleted gas reservoirs during the sequestration process
    Autorzy:
    Gonet, K.
    Blicharski, J.
    Rybicki, Cz.
    Powiązania:
    https://bibliotekanauki.pl/articles/299199.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    CO2 injection
    depleted gas reservoirs
    sequestration
    Opis:
    One of increasingly used methods for reducing carbon dioxide emission to atmosphere is CCS technology (Carbon Capture and Storage). The last element of sequestration technological chain, after capturing and transporting is CO2 storage which is currently considered in natural environment, oceans and geological structures - of which depleted gas reservoirs have high sequestrating potential mainly by virtue of proven record of geological recognition and high recovery factor, hence, great storage capacity. This paper is connected with first stage of CO2 storage in depleted gas reservoir i.e. flow of injected fluid inside the well. Conducted analysis was concerned about CO2 flow conditions inside the injection well in various stages of CO2 storage process, and furthermore, relation between reservoir pressure, injection rate, well diameter. Moreover, the thermodynamic conditions and its impact on changeability of PVT parameters and hence phase changes were also investigated
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 1; 185-200
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of possibility applications of using membrane separators for purification of gas from unconventional deposits
    Autorzy:
    Stec, G.
    Rybicki, C.
    Blicharski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/298996.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    membrane separators
    purification of gases
    unconventional deposits
    Opis:
    In this paper the types of membranes used for purification of the gas streams were described, the principle of operation was discussed and the main areas of the industrial use of this type of separation equipment in the world were identified. The possibility of using membranes for natural gas purification in particular the unconventional gas (shale gas, natural gas with nitrogen) was analyzed. The authors presented the criteria for selecting the size of the membranes, the critical parameters of membrane system, the necessary installation and compilation of technology enabling the proper conduct of the separation process. Based on the experience of different companies rated the advantages and disadvantages of using membranes for gas treatment in Polish exploitation and transmission conditions both from the technological and the economic point of view. The paper ends with proposals for the possibility of application of the system of membranes for the purification of gas from unconventional sources.
    Źródło:
    AGH Drilling, Oil, Gas; 2014, 31, 2; 231-239
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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