A full hydraulic wireline core drilling rig is designed to recover continuous cylindrical rock samples from underground formations while improving drilling control and core retrieval efficiency.
Unlike conventional coring methods that may require the entire drill string to be removed for each core recovery cycle, wireline drilling allows the inner tube containing the core sample to be retrieved through the drill rods.
This makes the system particularly valuable for deeper exploration projects.
The main drilling system typically includes:
Full hydraulic drilling rig
Wireline drill rods
Core barrel assembly
Inner and outer tubes
Overshot
Wireline winch
Diamond core bit
Reaming shell
During drilling, the diamond bit cuts an annular path through the formation and the rock core enters the inner tube.
When the core barrel is full, an overshot is lowered through the drill string to retrieve the inner tube.
A modern hydraulic drilling rig can provide controlled rotation, feed and pullback for changing formations and drilling depths.
Advantages can include:
Stepless or flexible drilling control
Smooth feed adjustment
Efficient rod handling
High lifting capability
Better adaptation to changing geology
Reduced manual operations
Typical applications include:
Mineral exploration
Geological surveys
Metal mine exploration
Engineering geology
Hydrological investigation
Geotechnical drilling
Deep-hole coring
Common wireline systems include BQ, NQ, HQ and PQ sizes, selected according to required core diameter, drilling depth and geological conditions.
YKDRILL develops drilling equipment and supporting tools for international exploration and drilling markets.
For exploration contractors, the real value of a full hydraulic wireline core rig is not simply reaching the target depth—it is recovering reliable geological information efficiently and consistently.
