Boart Longyear introduced the wireline core retrieval system in 1958, being the first diamond drilling exploration product manufacturer to offer this revolutionary system which increased productivity on the worksite and made tripping core from the bottom of the hole safer for the drilling assistant.
Prior to the introduction of wireline technology, the drill crew was required to pull the entire rod string out of the ground to gain access to the conventional core barrel located behind the drill bit. Once the core barrel was emptied, the complete rod string would be lowered into the exploration hole prior to drilling the next core run.
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.
With the goal of providing our customers a larger diameter core sample without increasing hole diameter, Boart Longyear introduced the Thin Kerf wireline system product line in 1989.
In 1998, Boart Longyear once again secured its position as the leading innovator in wireline technology by introducing the patented Link Latch mechanism.
While the Q® system was adapted to pump-in applications for inclined holes underground, Boart Longyear maximized reliability of the latching mechanism with the release of the patented Quick Pump-In head assemblies in 2002. This head assembly added positive latch indication and removed the pump-in lip seal from the latch retracting case, eliminating latching concerns against in-ground fluid, gas pressure zones and fluid evacuation or suction.
Boart Longyear launched the patent pending Quick Descent® core barrel head assembly. Providing the customer with the potential to increase core barrel descent speed up to 30%, this Quick Descent head assembly is a central component of the High Productivity Coring System™ which also includes the Stage3 diamond coring bit and the V-Wall® coring rod.
