Inicio > Term: Travelling block
Travelling block
An arrangement of pulleys, or sheaves, through which drilling cable is reeved, which moves up or down in the derrick or mast.
- Parte del discurso: noun
- Industria/ámbito: Petróleo y gas
- Categoría: Perforación
- Company: PETEX
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Creador
- Harry8L
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