Genuine - Model Q™ - Wireline Coring System
Boart Longyear introduced the wireline core retrieval system in 1958, being the first diamond drilling exploration product manufacturer to offer this revolutionary system. The Boart Longyear design engineering team continued to refine the initial system, resulting in the launch of the industry-standard patented Q™ wireline system in 1966. We offer a complete range of genuine Q™ coring system components including wireline tools, rods and casing, and coring bits. Our Q™, Q™TK*, Q™3, Q™TT systems are designed to increase core recovery and productivity in any drilling condition, delivering greater efficiencies and reliability to the driller. Whether drilling a standard DCDMA hole or a project requiring a split tube to retrieve soft, highly fractured formations – the Genuine Q Coring System is proven to perform.
The genuine Q wireline system includes everything a driller needs to maximize productivity while maintaining the highest levels of safety.
Q Wireline System
The Boart Longyear™ Genuine Q wireline system represents proven technology in surface and underground applications. Our systems Q, QTK and Q3 are designed to increase core recovery and productivity in any drilling condition, delivering greater efficiencies and reliability to the driller. Whether drilling a standard DCDMA hole or a project requiring a split tube to retrieve soft, highly fractured formations – the Genuine Q wireline system is proven to perform.
Q Rods and Casing
Boart Longyear Genuine Q rods are the undisputed, worldwide standard for core drilling. Our proprietary Q™ and patented RQ thread design has met the market demands through innovative engineering and state of the art manufacturing techniques. Our most recent RQ rod design features a combination of exclusive heat treatments and a patented thread design to provide the ultimate in rod performance and longevity.
With market-leading patented RQ thread strength and our lightweight V-Wall™ body option, Boart Longyear drill rods will expand your drilling capacity in all ground conditions and applications - rated for more than 3000m and field-proven to more than 3800m.
Q Coring Bits
Boart Longyear Genuine Q bits are designed to support and operate with our Q wireline systems Q, QTK and Q3. Boart Longyear offers the most accepted bit range in the industry and has dedicated itself to the continued development of diamond bit technology. Our customers see it in our recent designs – such as the patented Stage™ and the new Surface Set XP™ – they trust us to deliver unmatched productivity year-afteryear.
Q™ RODS AND CASING
The exploration industry trusts genuine Q™ rods and patented RQ™ rods to perform in all ground conditions and applications
Q™ WIRELINE TOOLS
Genuine Q wireline tools combine a history of innovation with established industry technology to provide a safe, robust and extremely productive suite of products for customers around the world
Q™ CORING BITS
Featuring cutting-edge technology such as the UltramatrixTM crown, StageTM waterways, and RazorcutTM design,
QTM bits are engineered
to provide world class productivity and unrivaled value
Q™ wireline systems are ideal for use in most drilling conditions and are available for application in standard DCDMA hole sizes (A, B, N, H, P). The standard system consists of the core barrel assembly and the overshot assembly. The core barrel assembly is composed of the inner-tube and outer-tube groups. The inner-tube group collects the core sample during the drilling process and is independent of the outer-tube group.
With the goal of providing our customers a larger diameter core sample without increasing the hole diameter, Boart Longyear introduced the Thin Kerf (TK) wireline system option. Q™TK wireline systems are optimized to allow for a larger core sample while retaining the same hole, low fluid pressure, and robust inner and outer. Q™TK systems are offered in the A, B, and N sizes.
*NQTK also known as NQ2
The Q™3 wireline systems consist of the same groups as the Q™ and QTK but utilize a third tube called an inner-tube liner or split tube. The liner is placed inside the inner-tube. This system enables integral core recovery when drilling coal, clay bearing, or highly fractured formations. The liner, or spit tube, retains the core sample in its received state for easier loading into sample trays or for storage and subsequent presentation to the geologist. The Q™3 is available in N, H and P sizes.
The Q™ TT system is similar to the Q™3 system but includes a specialized core lifter case and bit. These components enable change in the water flow by creating a seal which routes water flow away from the inner-tube further improving core recovery. The Q™ TT utilizes a specially designed piloted core lifter case that improves core recovery and reduces core washing by directing fluid flow away from the ID of the core bit. Core bits are made for a 3-tube core barrel system and require face discharge ports or deep ID waterways.