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    Wyświetlanie 1-3 z 3
    Tytuł:
    Assessment of the technical level of magnetic fishing tools
    Autorzy:
    Romanyshyn, Taras
    Romanyshyn, Liubomyr
    Bembenek, Michał
    Mokhnii, Ihor
    Powiązania:
    https://bibliotekanauki.pl/articles/409609.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    fishing tool
    lifting force
    magnetic system
    permanent magnet
    technical level
    Opis:
    A variety of magnetic fishing tools poses the task of the optimal choice of tool for eliminating accidents during the construction, operation and repair of wells. Existing criteria for assessing the quality of fishing magnets are characterized by the complexity of the determination and the ambiguity of the results. Therefore, the aim of research is development of a new approach to determining the technical level of fishing tools of various types and designs. A complex criterion has been developed that allows to evaluate the technical level of magnetic systems by correlating the actual and theoretical values of the total and specific lifting forces. Also it has been carried out a qualimetric analysis of magnetic tools, which are currently offered by world manufacturers. As a result, mathematical models are found that describe the average and modern world level of devices with specific lifting force. Technical decisions are proposed, the implementation of which in the design of magnetic systems of fishing tools will allow to achieve high values of lifting force. Application of the proposed complex criterion along with the results of qualimetric analysis will make it possible to objectively assess the technical level of magnetic fishing tools both at the design stage and during serial production.
    Źródło:
    Management Systems in Production Engineering; 2020, 2 (28); 78-83
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the efficiency of the large-diameter fishing tools with the moving magnetic systems
    Autorzy:
    Romanyshyn, Taras
    Sheketa, Vasyl
    Romanyshyn, Liubomyr
    Buchynskyi, Myroslav
    Powiązania:
    https://bibliotekanauki.pl/articles/2064377.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    fishing tool
    magnetic system
    permanent magnet
    hoisting capacity
    narzędzie wyciągowe
    system magnetyczny
    magnes trwały
    zdolność wyciągowa
    Opis:
    The variety of accidents which happen during the construction of oil and gas wells causes the expansion in the use of magnetic fishing tools. However, the known tools based on permanent magnets have a significant drawback involving the flat working surface of the magnetic system that does not permit to achieve a considerable attraction force to a fished object of complex geometric shape. Therefore, the aim of the research is to increase the efficiency of removal the objects of irregular geometric shape from the wells by enlarging the area of contacting them. For that purpose, it has been developed a fundamentally new design of the large-diameter fishing tool with the moving magnetic systems capable of copying the shape of the objects to be fished. Each magnetic system, which is compound of permanent rare-earth neodymium magnets and concentrically placed magnetic cores, shall be held by the magnetic field of adjacent systems with opposite polarity. There were conducted theoretical studies using the finite element method to determine the working capacity of the designed tool. As a result, it has been found the value of hoisting capacity during the interaction of magnetic systems with the roller cone of the drill bit; this fact confirms the capability of fishing the objects of irregular geometric shape. In addition, it has been explored the influence of the material of the fished object on the power characteristics of magnetic systems. The application of the designed magnetic tool allows removing the ferromagnetic objects from the well regardless of their shape, weight and position on the bottom hole. Apart from that, the given tool may be used in the areas where the technology of work is related to drilling wells.
    Źródło:
    New Trends in Production Engineering; 2019, 2, 1; 206--213
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using FCAW with Electrodes Based on Fe-Ti-Mo-B-C System for Increasing of Durability of Junk Removal Tools
    Autorzy:
    Ivanov, Olexandr
    Prysyazhnyuk, Pavlo
    Romanyshyn, Liubomyr
    Romanyshyn, Taras
    Mosora, Yurii
    Powiązania:
    https://bibliotekanauki.pl/articles/2065035.pdf
    Data publikacji:
    2021
    Wydawca:
    STE GROUP
    Tematy:
    abrasion resistance
    flux cored electrodes
    hardfacing
    junk mills
    microstructure
    Opis:
    In this work were analyzed factors and working conditions that leads to the wearing of junk mills tools that are a part of junk removal equipment used in drilling and workover of borehole. Such equipment is a part of oil and gas industry and work under condition of intense abrasive wearing with increased pressures and cyclic loads. Was established that traditional hardfacing materials based on the Fe-Cr-C system are not effective for improvement of abrasion resistance of elements of such equipment due to their low crack resistance and low hardness of chromium carbides. The aim of this work was to increase a durability of that equipment by using of flux cored electrodes with reaction components of pure metal powders, which leads to forming the fine-grained structure with increased hardness. Powders of Ti, Mo, B4C and their combinations were used. Structures of the hardfacing coatings were investigated by method of metallography, scanning electron microscopy (SEM). Abrasion wear tests were held under condition of fixed and non-fixed abrasion. Using of pure metal powders led to formation of a fine-grained structure with grains of Mo2FeB2 that forms around TiC, which work as modifier. It was investigated that the researched material based on Fe-Ti-Mo-C-B system that was used for increasing the wear resistance of junk mills led to increasing of the TBO period in 1.5-1.6 times comparing with serial hardfacing materials based on tungsten.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 132--141
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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