ISO 8866-1991 回转取心金刚石钻探设备 系列C
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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).
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