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Explanation: O gabarito submarino é chamado "template", mas nunca vi usado como verbo. Talvez fosse preciso mais contexto, mas fica a sugestão: running the drill string using a template... (ou algo nessa linha)
scoring the column at regular/pre-defined intervals
Explanation: It sounds to me as though a drill bit is descending a column and scoring it as it descends. Creating groves/notches/scores/marks/scratches at regular intervals as it goes down the column. It's creating a "gabarito"- measurement template - as it descends. I would go with "scoring the column at regular/pre-defined intervals as it descends". without the context I'm just guessing really