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    Wyświetlanie 1-6 z 6
    Tytuł:
    The influence of borehole design on the production and efficiency parameters of wells intaking Quaternary waters in the south of Łódź
    Autorzy:
    Macuda, J.
    Styrkowiec, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/298685.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    wellbore
    wellbore design
    technical condition of wellbore
    hydraulic efficiency
    technical diagnostics
    Opis:
    Quaternary wellbores are very liable to rapid drops of hydraulic efficiency mainly caused by clogging processes and the corrosion of the wellbore structure. The presence of such processes and their intensity largely depend on the hydrogeochemical conditions of the intaken aquifer and also the production rate and extraction method of a given wellbore. Among the major factors slowing down the hydraulic intensity are a correctly designed well, especially the properly selected type and design of the filter. A well designed wellbore filter should have low hydraulic resistance of the inflowing water and be resistant to clogging and corrosion in the given hydrochemical conditions. This allows for long and failure-free extraction of large high-production wells. The results of analyses of the effect of intake wellbore design on its hydraulic efficiency are presented in the paper. The intake wells producing Quaternary waters for waterworks in the southern part of Łódź were analyzed.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 4; 895-906
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Many years’ extraction of groundwater in the context of established usable groundwater reserves
    Autorzy:
    Macuda, J.
    Styrkowiec, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/298693.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    well
    intake well
    usable reserves
    establishing reserves
    life of well
    water extraction
    groundwater reserves
    test pumping
    well construction
    Opis:
    The operation of water supply networks basically relies on the ability of supply water, which in the case of groundwater intakes, is defined by usable reserves offered by the wells involved. Their establishing is the last stage of an investment, i.e. building of groundwater intakes, and their value determines the type of infrastructure and technological hardware in the wells. Owing to the fact that the usable groundwater reserves are conditioned by a number of factors (economic, technological, environmental) their correct determining depends on the correct definition of the number and quality of measurements and hydrogeological observations. In practice, these measurements tend to be shortened to minimum (test pumping) or discarded (diagnostics of well construction) for financial reasons. As a result the user obtains either over- or underestimated information about the intake parameters. Exploitation of a well with overestimated capacity brings about serious technological and economic consequences, starting from the lowered productivity (drop of water table, lower yield), change of chemical composition of water, sanding up of the well as well as well failures and damage. The use of a well with underrated output does not shorten the life of the well, though is disadvantageous for the economic reasons. The productivity of wells can be verified after a few years of controlled extraction, on the basis of which the cost of water extraction, stability of chemical composition or impact on other intakes in given work conditions. Accordingly, this is a basis for updating usable groundwater reserves of the wells. Moreover, after many years of observation of groundwater intakes, one can formulate recommendations warrantying long life of wells, rational management of pump aggregates and well renovation plans.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 2; 419-427
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The technical and technological aspects of commissioning a new intake wells
    Autorzy:
    Macuda, J.
    Styrkowiec, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/298953.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    drilled well
    technical condition of well
    hydraulic efficiency
    diagnostics of wells
    quality of drilling
    Opis:
    Correctly performed intake wells are a warranty of long and efficient exploitation of the object. A number of important factors are involved, starting from the correct technology of drilling to proper supervision of the investor and control of realization of particular stages of work. These factors are typical of each stage of the investment process, from the stage of determining project requirements, quality of drilling to commissioning of the well. For this reason it is extremely important for the investor to establish the requirements and technical criteria which will be presented to the authors of the geological project and potential performer of the well. Geological works can be successfully verified with available diagnostic techniques, thanks to which the quality of performance can be recognized, make the contractor remove construction failures and improve the efficiency of hydraulic well before final commissioning. The necessity of performing such an analyses should be included in the budget of the planned well.Properly defined technical condition of the drilled well and evaluation of its hydraulic efficiency, being a basis for commissioning, allows the designers to select rational parameters of production and elongate a well’s life.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 3; 641-649
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania diagnostyczne wnętrza studni wierconych za pomocą inspekcji telewizyjnej na przykładzie doświadczeń z Łodzi i okolic
    Video inspection in the diagnostic measurements of the interior of drilled wells – based on experiences from the city of Łódź and its surroundings
    Autorzy:
    Piąstka, W.
    Styrkowiec, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075265.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    inspekcja strudni
    diagnostyka studni
    ocena stanu technicznego studni
    water wells inspection
    diagnostics of wells
    assessment of technical condition of wells
    Opis:
    Maintaining the proper technical condition of drilled wells is essential to the rational utilisation of underground water supplies both from the environmental and economic perspective. This cannot be achieved without the diagnostic monitoring of underground water extraction equipment. Keeping track of the water wells’ operational parameters is not sufficient, however. The ability to assess the technical condition of drilled wells quickly and easily is equally important, especially in cases of malfunctions and failures. Video inspection – one of the methods of well-hole diagnostics – allows to picture the technical condition of the structure, identify root causes of the malfunction and indirectly interpret the environment within the water well; all during the examination itself. It is a perfect tool to assist more traditional methods of monitoring the well’s operational parameters. It can also serve to verify the quality and compliance of the structure of new water wells as well as to assess the condition of wells before they are made operational.
    Źródło:
    Przegląd Geologiczny; 2015, 63, 10/2; 992--996
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of wells reconstruction on their operational parameters
    Autorzy:
    Macuda, J.
    Styrkowiec, E.
    Rajpold, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/298645.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    well
    operational resources
    determination of resources
    well life
    long-term operation
    Opis:
    Use of deep water-bearing horizons on an industrial scale is an expensive undertaking, mainly in the first phase of the project which is the well construction stage. Also, emergencies occur during the well operation, with the most frequent including yield reduction caused by the poor technical condition of the well. These 17 frequently lead to the total decommissioning of the well, caused, for example, by backfill, filter damage or casing pipe damage. After conducting the proper diagnostics, a decision is most often made in such cases to reconstruct a well, and much less seldom to drill a new well hole. Reconstruction of water intake wells usually encompasses replacement of the entire filter column with the well filter damaged as a result of ageing. As new technologies and materials become available on the market, it is possible to use new generation filters in the well construction, with better technical parameters (in terms of strength, hydraulics and corrosion resistance). In many cases, it allows for maintaining or achieving similar operational parameters in the reconstructed well. The determination of resources for a reconstructed well should, however, take into account modified filtration conditions in the aquifer’s zone adjacent to the filter because of the zone siltation during previous use of the well. The paper includes an evaluation of the impact of the reconstruction of two wells extracting water from the Lower Cretaceous level on improvement of their yields.
    Źródło:
    AGH Drilling, Oil, Gas; 2018, 35, 1; 335-342
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stan chemiczny wód podziemnych aglomeracji łódzkiej
    Chemical status of groundwater of the Łódź agglomeration
    Autorzy:
    Małecki, J. J.
    Porowska, D.
    Styrkowiec, E.
    Ziułkiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075644.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    piętro czwartorzędowe
    poziom górnokredowy
    poziom dolnokredowy
    stan chemiczny wód podziemnych
    Quaternary aquifer
    Upper Cretaceous aquifer
    Lower Cretaceous aquifer
    chemical status of groundwater
    Opis:
    The article identifies the hydrogeochemical environments controlling the chemical composition of groundwater in the Lódź agglomeration. The study was conducted with a different position of the groundwater table within: the Quaternary, Upper- and Lower Cretaceous aquifers. These aquifers are continuously exploited from a long time till present. The papers focuses on geogenic factors resulting from geological construction, lithology, circulation in the Lódź basin and anthropogenic factors associated with the change of the circulation system and the potential migration of pollution from the surface. The chemical composition of water from the Quaternary, Upper- and Lower Cretaceous aquifers was stable, without any anthropogenic changes. The hydrochemical inversion of water within the Cretaceous aquifers is the result of the different lithology of these aquifers and the variation in the way and magnitude of groundwater recharge.
    Źródło:
    Przegląd Geologiczny; 2017, 65, 11/2; 1329--1333
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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