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نویسندگان مقالات پربازدید :
تجزیه و تحلیل شکست مهندسی
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین
حوزه های تحت پوشش رویداد
  • جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 771
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a heavy weight drill pipe (hwdp) is a type of drill pipe whose walls are thicker and collars are longer than conventional drill pipe. hwdp should be stronger and should have higher tensile strength than conventional drill pipe, as it is placed near the top of a long drill string. drill pipes are subjected to various types of loads and are operated under different environmental conditions. the heavy weight drill pipes are the most expensive elements of the drill pipe string and their durability is essential for the economical drill work efficiency. in the exploration work, abrasive wear occurs and the durability of the heavy weight drill pipe is decreased. the abrasive wear is the result of the friction between the heavy weight drill pipe with the inner surface of the casing or the open hole wall. in order to improve the wear resistance of heavy weight drill pipes the hardbanding technology is worldwide applied. hardbandng of drill pipe tool joints and other drilling equipment has been around since the late 1930 [1–3]. originally hardbanding was applied primarily to protect the drill pipe and other tools from premature abrasive wear. since, that time there have been numerous changes in hardbanding and its application, but only within the last few years has new technology been introduced that allows hardbanding to protect the casing and the drill pipe at the same time. several types of wear resistant alloys are now available for hardbanding. most of them are designed to protect the casing, the marine riser or the drill pipe, but only one or two can sufficiently protect all at the same time, from premature abrasive wear.

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