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    Wyświetlanie 1-11 z 11
    Tytuł:
    Protecting Wieliczka Salt Mine against water hazard on the example of the Mina traverse
    Autorzy:
    Gonet, A.
    Stryczek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/299177.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    salt mine
    water hazard
    Wieliczka
    Opis:
    Water surrounding every salt mine creates catastrophic hazard for that place. One of such cases is uncontrollable flooding of the Wapno Salt Mine, near Innowrocław (see article Kortas G. and Maj A., Przegląd Solny, 10, 2014). The causes of catastrophic water fluxes to the Mina traverse located in level IV at a depth of 170 m b.s. in the historical Wieliczka Salt Mine is presented in this paper. The complex geological build of the immediate neighborhood of the Mina traverse was described, paying attention to the evidently disadvantageous hydrogeological conditions in the northern part of the salt dome. The most important actions aimed at limiting the water hazard in Wieliczka Salt Mine concentrated on managing and so liquidating the disastrous flux of water and solids to the Mina traverse, which started in 1992. A unique solution was proposed to solve this problem, i.e. an internal safety pillar was construed with the use of dedicated unique technologies.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 1; 219-229
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Method used for safety pillar reconstruction on the example of the Dunajewski gallery in the “Wieliczka” Salt Mine
    Autorzy:
    Gonet, A.
    Stryczek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/299030.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    pillar reconstruction
    Wieliczka Salt Mine
    Opis:
    Preserving such unique objects as the “Wieliczka” Salt Mine for the future generations is an obvious obligation. Water is the biggest threat to this object and many similar ones. At the last stage or even in the course of mine exploitation salt mines are flooded as this is the simplest method of their liquidation applied worldwide. However this method cannot be used in the “Wieliczka” Salt Mine , which was put on the UNESCO World Cultural and Natural Heritage list in 1978. Geological and hydrogeological conditions in the Dunajewski gallery are presented in this paper. The Dunajewski gallery is localized directly east of the Mina gallery, where a catastrophic water flux was observed in 1992, threatening the mine with flooding and with considerable damage on the surface. Authors describe the pipeline injection method which was used in that situation. This was a fast and economic method thanks to which the Dunajewski gallery and the adjoining leaching gallery could be efficiently and tightly filled. Specialist recipes for sealing slurry had to be worked out. The slurry was prepared in an injection column elevated in the neighborhood of the Kościuszko shaft and then transported with special pipelines through the Kościuszko shaft and some workings to the Dunajewski gallery. In this way the off-side safety pillar in the area of the Dunajewski gallery was reconstructed.
    Źródło:
    AGH Drilling, Oil, Gas; 2018, 35, 1; 49-56
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A review of pile machines and their selection criteria
    Autorzy:
    Gonet, A.
    Stryczek, S.
    Fyda, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/299004.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    pile machines
    geoengineering
    drilling
    Opis:
    Many geoengineering investments can be realized thanks to the use of piles, which may play numerous functions. The piles were classified in the paper in view of assumed criteria and most frequent applications. These works can be performed with specialist pile equipment. In the description attention was paid to the most important technical parameters of pile machines produced by such companies as Bauer, Casagrande and Soilmec. The multi-criteria method with a synthetic measure of evaluation was used for selecting the most suitable pile machine. Among the assumed criteria were the pull up/down force, torque, maximum depth and diameter of the pile and the main winch. The analysis of the obtained weights and criteria revealed that the Bauer pile machine BG 50 had the highest CCS pull up/down and torque and was most appropriate for making long and large-diameter piles.
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 3; 469-481
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of inaccuracy of determining a directional borehole axis
    Autorzy:
    Topolski, T.
    Gonet, A.
    Stryczek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/299106.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    directional drilling
    trajectory borehole
    Opis:
    The development of directional drilling made designers work out numerous measurement devices for spatial location of the borehole axis. The borehole trajectory can be determined on the basis of very accurate calculation methods. The authors present a brief characteristic of devices for measuring dogleg angle and azimuths as well as methods for calculating the spatial placement of borehole axis, i.e.: – average angle method, – tangential method, modified to balanced tangential method, – radius of curvature method (RCM), – minimum curvature method. Calculations and graphical representations of deviations obtain ed with these four methods were performed for three selected trajectories of borehole axes (2D), increase/decrease of dogleg angle and 3D, increase/decrease of dogleg angle and azimuth with the use of COMPASS software (part of Halliburton Landmark package).
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 3; 589-603
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstruction fluid with new PT-86 polymer
    Autorzy:
    Wysocki, S.
    Stryczek, S.
    Gonet, A.
    Gubała, P.
    Gaczoł, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/298733.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    reconstruction fluids
    polymers
    Opis:
    While reconstructing partially exploited boreholes located in south-eastern part of Poland there were several issues. Standard procedures were not efficient enough to fulfil the requirements for fluid to work properly. This enforced investor to turn to the Faculty of Drilling, Oil and Gas AGH UST Krakow for assistance in developing special formula for working fluid. Major requirements set for reconstruction fluid were to: inhibit hydration of loam rocks, reduce corrosion of casing and tubing and decrease filtrate loss which maintained at a high level. Therefore, the Faculty of Drilling, Oil and Gas AGH UST Krakow developed and compared various reconstruction fluids' formulas to eliminate encountered complications. The article also concentrates on studying the samples collected from the borehole and presents conclusions based on laboratory tests. Analyses of the research results expose best working solution for eliminating the issues that came across during reconstruction of the borehole.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 1; 159-166
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of fluidal ashes as a component of cement slurry used in carbon dioxide injection wells - possibility analysis
    Autorzy:
    Formela, M.
    Gonet, K.
    Stryczek, S.
    Wiśniowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/298795.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    cement slurry
    CCS
    fluidal ashes
    carbon dioxide
    Opis:
    One of the most important environmental issues bothering scientists nowadays are greenhouse gases, mainly carbon dioxide, and the possibility of limiting their emission and utilization. Many countries have been actively trying to limit the greenhouse gases emission, mainly carbon dioxide, and implement the Carbon Capture and Storage (CCS) technology for years. One of the essential aspects of geological injection is constant monitoring of carbon dioxide, especially its pressure and temperature. Those parameters have an impact on viscosity, density and phase alterations during the flow. It is of vital importance to maintain the supercritical state of the fluid because it is the most efficient way of CO2 storage. The negative impact of CO2 on the properties of the cement slurry may disturb the exploitation of the well and create considerable hazard for the geological storage of carbon dioxide. Therefore, the cement slurry should be appropriately selected and the role of CO2 in the development of technological properties of fresh and hardened cement slurry should be determined. The aim of this research is to select the most appropriate cement slurry composition exhibiting optimal properties with respect to the phase changes of carbon dioxide. The first part of the research consists in creating cement slurries of various compositions and investigating its thermal conductivity and sogginess under in-situ conditions. The second part concerns a possibility of utilization of fluidal ashes from combustion of lignite as a component of cement slurry.
    Źródło:
    AGH Drilling, Oil, Gas; 2018, 35, 1; 157-164
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of selected liquefiers on the rheological parameters of cement slurries
    Autorzy:
    Stryczek, S.
    Gonet, A.
    Wiśniowski, R.
    Złotkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298872.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    cement slurries
    liquifiers
    Opis:
    The rheological properties of sealing slurries are very important when designing and executing cementing jobs and reinforcing ground and rock mass with the use of drilling technology. In order to ensure a high level of efficiency, the applied sealing slurries should meet several requirements. One of the most important criteria is pumpability. The rheological model and the rheological parameters of the sealing slurries should be properly selected to ensure efficient pumping. On this basis the flow resistance of the slurry in the circulation system can be calculated. The paper presents the results of laboratory experiments on the influence of some liquefiers on the formation of rheological properties of cement slurries used for sealing and strengthening rock mass, and for cementing jobs.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 3; 745-760
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Categorization of the drilling waste as a criterion of selecting the methods of their detoxication, recovery and management
    Autorzy:
    Gonet, A.
    Fijał, J.
    Jamrozik, A.
    Stryczek, S.
    Bilstad, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/298605.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    categorization waste
    drilling waste
    management drilling waste
    Opis:
    Being aware of the problems affecting our environment, novel technological solutions have been dealt with to improve its quality. Mining is a sector generating substantial volume of waste and it also refers to drilling operations. On the basis of laboratory investigations and the analyses of legal regulations, three categories of drilling waste have been distinguished depending on the environmental impact of the waste and on the potential technologies of their treating and successful utilizing. The essentials of the solutions proposed have been presented and for each of the categories a processing flow chart has been prepared. At the ends of the processing lines, the flow charts specify the possibilities of utilization of the final products.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 2; 447-454
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An application of organic nanosilica to cement slurries based on portland cement
    Autorzy:
    Jamrozik, A.
    Stryczek, S.
    Wiśniowski, R.
    Gonet, A.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/298611.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    cement slurries
    nanosilica
    Opis:
    More and more attention is paid nowadays to the quality and durability of the applied cement slurries. Apart from the appropriate rheological, technological and strength parameters, the slurry should be resistant to the strongly mineralized reservoir waters. Appropriate phase composition of cement slurries, especially high CSH content is responsible for the change of pore structure in the cement slurry; the number of fine gel pores which are not available for the fluid increases and the number of capillary pores responsible for the transport of corrosive factors inside the cement slurry decreases.The use of nanosilica as an additive improving the properties of cement slurries has recently gained popularity. Bearing in mind these properties of nSiO2, there were conducted laboratory experiments on the use of organic nanosilica for cement slurries based on Portland cement CEM I 52.5 R.
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 4; 747-758
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of bentonite addition on parameters of fresh and hardened cement slurry
    Autorzy:
    Kremieniewski, M.
    Stryczek, S.
    Wiśniowski, R.
    Rzepka, M.
    Gonet, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298669.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    cement slurries
    bentonite
    Opis:
    The recipe of cement slurry contains a number of additives and admixtures used for obtaining appropriate technological parameters. Some of these agents have a loose form and their density is higher or lower than that of working water, which may result in sedimentation of solid phase. For the sake of eliminating this effect, the viscosity of the working fluid should be increased to keep the fine solids over the entire volume of the slurry. This can be done with the use of appropriate high-molecular polymers. However, bearing in mind the cost of the polymers, bentonite is most frequently applied. Bentonite (montmorillonite) has a packet build and the resulting higher water-demand causes an increase of viscosity of working fluid. It is most frequently used to improve the sedimentation stability, though the presence of this additive is not neutral for the technological parameters of the slurry. During research works aimed at analyzing the influence of montmorillonite on the parameters of fresh and hardened cement slurry predefined quantities of bentonite were used in proportion to the working water. Reference recipes of slurries were worked out to trace the changes. The following properties of the slurry were defined: rheological parameters, filtration, thickening time, water settling, sedimentation stability. For hardened cement samples the bentonite addition was analyzed in view of its influence on the mechanical properties (compressive strength), physicochemical parameters (adhesiveness to steel pipes and adhesiveness to rock formation). Additionally, hardened cement slurry underwent analyses describing the microstructure of the sample porosity and permeability tests). For the sake of determining the influence of mineral additives on parameters of slurry and the hardened slurry there were performer tests for recipes of slurries to be used in wellbore conditions at temperature from 30°C to 90°C and pressure from 5 MPa to 35 MPa.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 2; 335-348
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania świeżych zaczynów uszczelniających do wypełniania otworowych wymienników ciepła
    Test of fresh cement slurries for borehole heat exchangers
    Autorzy:
    Sapińska-Śliwa, A.
    Stryczek, S.
    Gonet, A.
    Mimier, Ł.
    Śliwa, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/299104.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    zaczyny uszczelniające
    otworowe wymienniki ciepła
    geoenergetyka
    geoenergetics
    sealing slurries
    borehole heat exchangers
    Opis:
    Badania świeżych zaczynów cementowych obejmowały dostępne na polskim rynku mieszanki do cementowania otworowych wymienników ciepła. Badania przeprowadzone w Laboratorium Płynów Wiertniczych na Wydziale Wiertnictwa, Nafty i Gazu AGH w Krakowie, wykonano na takich produktach jak: ThermoCem Plus, Hekoterm, Stuwa Therm 2000. Przygotowano różne receptury tych produktów oraz testowano ich gęstość, rozlewność, lepkość umowną, pH filtratu, filtrację rzeczywistą (właściwą), odstój oraz właściwości reologiczne takie jak lepkość pozorna, lepkość plastyczna i granica płynięcia. Najlepsze wyniki uzyskano dla ThermoCem Plus. Dwie pozostałe mieszanki, które najprawdopodobniej bazują na piasku kwarcytowym, cechowały się słabą przetłaczalnością. Za pomocą numerycznego programu komputerowego Rheo Solution dobrano optymalny model reologiczny dla ThermoCemu Plus, gdyż tylko ten zaczyn spełniał kryteria zaczynu cementu wiertniczego. Program dopasował do badanego zaczynu model Herschleya-Bulkleya.
    Research on fresh cement slurries, included mixtures available on Polish market. Tests made in laboratory of Drilling Fluids on Drilling, Oil and Gas Faculty AGH in Cracow. Cement slurries which were testing were: ThermoCem Plus, Hekoterm and Sffiwa Therm 2000. Various recipes were prepared. Focused on the testing density, fluidity, pH of the filtrate, conventional viscosity, effective filtration, sedimentation and rheological properties. ThermoCem Plus best met all the parameters. The other products, which probably based on quartz sand, were characterized by pour flow properties. Only ThermoCem could be classified as drilling cement. Special computer program - Rheo Solution was used for choose the best rheological model. The best model was Herschley-Bulkley's model.
    Źródło:
    AGH Drilling, Oil, Gas; 2012, 29, 1; 271-283
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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