钻具检测分级标准

TOC \o "1-5" \h \z 前言 n1范围 12规范性引用文件 13要求 14在用钻具的要求、检验与分级评价 25检验规则 8附录A钻杆接头分级参数 9附录B钻铤磨损后接头台肩

前言 ............................................................................... n 范围 ........................................................................................... 11 规范性引用文件 .................................................................................. 21 要求 ......................................................................................... 31 在用钻具的要求、检验与分级评价 ................................................................. 42 检验规则 ....................................................................................... 58 附录钻杆接头分级参数 .......................................................................... A9 附录钻铤磨损后接头台肩面宽度极限尺寸参数 ..................................................... B11 附录钻具接头螺纹纵波直探头端面超声波探试块尺寸 ............................................... C12 附录钻具接头螺纹涡流探伤试块尺寸 ............................................................. D13 附录钻具接头螺纹电磁探伤试块 ................................................................ E13