| Subject | English | Russian |
| oil | abrasive jet coring bit | колонковое долото с гидромониторными насадками для подачи абразивного бурового раствора на забой скважины |
| dril. | Cored Bit | сработка долота (CR; The centermost cutters of this bit were damaged by a rock core that was left in the hole by the preceding bit. This is merely one way in which a bit can core. A bit often cores when the nose part of one or more cones is broken, or when the abrasiveness of the formation exceeds the wear resistance of the center cutters. Improperly breaking in a new bit after a major change in the bottom hole pattern also can result in coring. A bit will also core when cutters are lost because of cone shell erosion, or when junk left in the hole breaks the center cutters. Kenny Gray) |
| oil | coring bit | керновое буровое долото |
| tech. | coring bit throat | керноприёмный канал бурильной головки |
| tech. | coring drill bit | керновое буровое долото |
| oil | diamond-compact coring bit | буровая коронка, армированная поликристаллическими синтетическими алмазами |
| oil | sintered diamond coring bit | буровая коронка, армированная синтетическими алмазами, впекаемыми в матрицу |