ISO 8866-1991 回转取心金刚石钻探设备 系列C

标准号：ISO 8866-1991
中文标准名称：回转取心金刚石钻探设备 系列C
英文标准名称：Rotary core diamond drilling equipment; system C
标准类型：D81
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：D81
国际标准分类号：73.100.30
适用范围：This International Standard specifies the material for and the dimensions of rotary core diamond drilling equipment, system C. NOTE 1 Cutting materials other than diamond may be used. It applies to — single- and double-tube core barrels, including diamond core bits, reaming shells, core lifters, core-lifter cases, core tubes (outer and inner) and heads; — drill rods and couplings; — casing tubes and couplings. The casing tubes are not designed for drilling, and the casing string is only employed for casing-off the hole. The range of equipment covers diamond core drill-ing of holes from 35 mm to 112 mm in diameter (outer bit diameter) with the corresponding core di-ameters from 21 mm to 92 mm. Single- and double-tube core barrels provide a means of coring compact rocks (types M and DM core barrels), fissured and fractured rocks (types T and DT core barrels) and fractured and broken-down rocks (type DP core barrels).