... core drilling Wireline Q series Core Barrel Wireline drilling is the special method of removing the core. When ... removed from the bottom of the hole without removing the rod string. When the driller wants to ... 0m length core barrels are avaiable. Wireline series Core Barrel available:Q series Core Barresls: AQ, BQ, NQ, HQ ... , T2-76,T2-86, T2-101, T6-131WF series Core Barresls: HWF, PWF, SWF, UWF, 412F We ...