Cementing Head 2 : A device attached to the top of the casing that allows connection of the flush and cement lines and allows plugs to be dropped. Special models may allow the cement to be rotated during cementing
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}