Home > Term: tight head
tight head
A casing-to-drill-rod coupling. When attached to the top of the casing, it is used during the process of pumping cement slurries or circulating water through the casing, forcing the fluid to flow out of the casing into the drill hole between the outside of the casing and the walls of the borehole.
- Kalbos dalis: noun
- Pramonės šaka / sritis: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)