کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7167732 1462943 2018 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oil well drill bit failure during pull out: Redesign to reduce its consequences
ترجمه فارسی عنوان
نفت در حین خروج به خوبی حفاری حفاری: طراحی مجدد برای کاهش عواقب آن
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
Operating procedures that reduce the likelihood and amplitude of impact loads, are difficult to implement; more promising is the alternative for a redesign of the drill bit. Commercial designs focus mostly on the efficiency of the cutting cycle; blade geometry can be also optimized to take into account the pull out conditions. The most efficient redesign for this specific drill bit model relies in a re-machining of the blade base, so that a large overpull load would crack a small sector, on which a PDC insert is located. In this gecko-tail type solution, only one insert would be lost, preserving the integrity of the rest of the drill-bit. Subsequent repair would involve standard thermal spray base metal techniques, including reconstitution and brazing of a new insert.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 83, January 2018, Pages 75-87
نویسندگان
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