Torque-balanced composite wireline cable
Mitigate high-tension risk and improve safety, efficiency, reliability, and sticking avoidance.
To overcome the operational limitations of mechanical weakpoints and previous-generation electronically controlled release devices (ECRDs), Schlumberger developed the SureLOC 12000 and 8000 cable release devices. Installed in the wireline logging head, the SureLOC 12000 device is activated by a software command and electrical power to reliably release the cable under a wide range of downhole conditions. Combined with TuffLINE torque-balanced composite wireline cable, the electronic release reliability for the SureLOC device exceeds 97%.
SureLOC 12000 and 8000 release devices can be complemented with inline addressable electronically controlled release devices positioned strategically along the toolstring.
Reliable operation eliminates redundant use of mechanical weakpoints to expand logging capabilities.