International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage

Multilingual Technical Dictionary (MTD)
4335. Kelly, or Grief stem : The uppermost joint of the drill string, square or hexagonal in cross-section, rather than circular, which permits the string to be rotated by the rotary table and at the same time to move downward as the bore is deepened.

Compare with :French, Hindi, Russian, Japanese, Chinese, Base Language : English
Available languages :French, Hindi, Russian, Japanese, Chinese, Base Language : English
4335. Tige d`entraînement : Elément d`articulation à l`extrémité supérieure de la tige de forage, dont coupe transversale est de forme carrée ou hexagonale plutôt que circulaire qui fait tourner le câble de forage grâce à la table de rotation, et permet son déplacement vers le fond du puits.

Compare with :English, Hindi, Russian, Japanese, Chinese, Base Language : French
Available languages :English, Hindi, Russian, Japanese, Chinese, Base Language : French

Last 10 definitions



Back


Back