... Hosting Plug, Drill RodNQ HQ Core Barrel, Casing Tube, Overshot Assembly,Hosting Plug, Drill Rod Wireline drilling is the ... the hole. This is time-consuming, as each rod has to be removed one at a time. With ... from the bottom of the hole without removing the rod string. When the driller wants to remove the ... Barrel available:Q series Core Barresls: AQ, BQ, NQ, HQ, PQ, NQ3, HQ3T series Core Barrels: T2-56, ...