A cement float collar is disclosed that can be positioned downhole and used in a wellbore completion operation after drilling a wellbore with casing. A wellbore drilling and completion method is also disclosed. The cement float collar is made for pumping downhole and into engagement with a groove formed...http://www.google.es/patents/US20040060700?utm_source=gb-gplus-sharePatente US20040060700 - Method for drilling and casing a wellbore with a pump down cement float
Method for drilling and casing a wellbore with a pump down cement float
Número de solicitud: 10/297,633 Número de publicación: US 2004/0060700 A1 Fecha de presentación: 5 Ago 2003 Patente emitida: US7428927 ( Fecha de emisión 30 Sep 2008)