Boart Longyear's core retrieval system allows for the retrieval of the full inner-tube without the need to pull the rod string out of the hole resulting is faster and safer core retrieval.
Currently there are three models: Q - QTK - Q3 and available for application standard hole sizes A, B, N, H, y P.
The core barrel assembly is composed of the inner-tube group and outer-tube group.
The inner-tube group is composed of:
The outer-tube group is composed of:
Boart Longyear's Quick Descent and Quick Pump-in head assemblies are integral parts of the Genuine Q wireline system enabling efficient attachment of the overshot to allow the core barrel to be retrieved from the drill hole.
A key component of both the Quick Descent ™ y Quick Pump-in ™ Head Assemblies is the new Spearpoint head, which has patented technology, which provides increased durability and safe use.
Boart Longyear's™ overshots are an integral part of the Genuine Q ™ Wireline System.
Once the inner tube is full of core, the overshot is lowered to the bottom of the hole, and its heavy-duty lifting dogs grab a secure hold at the top of the inner tube assembly.
For maximum productivity in underground or pump-in applications, Boart Longyear offers the new Quick Pump-in ™ overshot. The new Quick Pump-in overshot provides significantly improved pump-in rates with dual pump-in lip-seals.