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Artikel-Nr. 24093527


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Autor(en): 
  • Emil Leporcher
  • Thermochemical Treatments improve Fatigue Life for Casing Drilling: Improvement of Casing Connection Threads Fatigue Properties through Thermo-chemica 
     

    (Buch)
    Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!


    Übersicht
     
    Lieferstatus:   i.d.R. innert 5-10 Tagen versandfertig
    Genre:  Naturwissensch., Medizin, Technik 
    ISBN:  9786202197649 
    EAN-Code: 
    9786202197649 
    Verlag:  LAP Lambert Academic Publishing 
    Einband:  Kartoniert  
    Sprache:  English  
    Dimensionen:  H 220 mm / B 150 mm / D 4 mm 
    Gewicht:  112 gr 
    Seiten:  64 
    Zus. Info:  Paperback 
    Bewertung: Titel bewerten / Meinung schreiben
    Inhalt:
    Drilling with casing is among the top ten promising technologies to reduce well construction costs. It consists in using directly the casing as the drill string. Such a technique does not only reduces tripping time, but also decreases the risk of downhole problems and provides a safer working environment, all leading to an overall well construction cost cut by 30%.However casing connections were initially designed to withstand static tensile loads and have poor fatigue resistance properties. Intermediate solution was to use metal to metal seal buttress threads, which enable to drill down to 3,000 m with some success. The performances of these connections using thermo-chemical surface treatments have been investigated using a fit for purpose workbench, and promising results such as a 32% increase in admissible fatigue load, as well as an elastic limit of threads increase in 50%, have been observed. A complete fracture analysis was performed using Scanning Electron Microscopy (SEM).

      



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