NRQ drill rod, NRQ wireline drill rod, NRQ coring rod.
NRQ wireline drill rod play an important part in N size wireline drilling. It provides the channel for NRQ inner tube assembly. It also transits the torque, drill pressure in complex and harsh conditions.
NRQ wireline drill rod tubing
●High quality alloy steel tubing
●Good concentricity, straightness and heat treatment
●Tubing properties meet the industry standard
NRQ wireline drill rod thread
●Improved NRQ tapered, course threads (3 threads per inch) ,increased taper and a reverse angle load flank provides an interlocking joint with increased strength and anti-jamming for easier make-up.
●Load efficiency of 50% provides sufficient strength for most drilling conditions
NRQ wireline drill rod heat treatment
●Provides higher material strength
●Whole rod Heat treated significantly increases rod life
NRQ wireline drill rod case hardening
●NRQ Pin thread crest is hardened to nominal 50-55 HRC to eliminate damaging’adhesion’ wear
●Eliminates the transfer of wear material back and forth as seen between threads of equal
hardness, leading to large scale galling and joint seizing
NRQ wireline drill rod overview
NRQ wireline drill rod thread profile
NRQ wireline drill rod parameters
SIZE | OUTER DIAMETER (mm) | INNER DIAMETER (mm) | WEIGHT (kg/3m) | THREAD PITCH (mm) | PIN LENGTH (mm) |
NRQ | 69.9 | 60.3 | 23.4 | 8.5 | 41.91 |
NRQ wireline drill rods bundle specifications
3.0 m rod bundle (19 pcs) | |
Approx Dimensions (L x W x H)(mm) | 3100 x 400 x 400 |
Approx Volume(m³) | 0.50 |
Approx Gross Weight(kg)H | 470 |
NRQ wireline drill rods container shipments
20 ft container | Approx load of 3.0 m rods 32 bundles (608 pcs) |
40 ft container | Approx load of 3.0 m rods 45 bundles (855 pcs) |