IS 15481 : Part 1 : 2024 Wireline Diamond Core Drilling Equipment - System A - Part 1 Metric Units
1 SCOPE
This standard specifies the nomenclature and the leading dimensions necessary for the interchangeability of the following wireline drilling equipment for drilling holes 48 mm to 96 mm in diameter, yielding cores of 27 mm to 63 mm in diameter.
The equipment is illustrated in Fig. 1 and comprises the following:
a) Core bit;
b) Reaming shell;
c) Core lifter;
d) Core lifter case;
e) Outer tube;
f) Inner tube; and
g) Drill rod (smooth pipe only).
2 REFERENCES
The standard given below contain provisions which, through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of this standards:
| IS No./Other Standards | Title |
| IS 9439 : 2022 | Glossary of terms used in water well drilling technology (first revision) |
| IS/ISO 18758-1 : 2018 | Mining and earth-moving machinery - Rock drill rigs and rock reinforcement rigs: Part 1 Vocabulary |
| ISO 3551-1 : 1992 | Rotary core diamond drilling equipment - System A: Part 1 Metric units |