Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe string comprising...http://www.google.es/patents/US20060086503?utm_source=gb-gplus-sharePatente US20060086503 - Casing strings and methods of using such strings in subterranean cementing operations
Casing strings and methods of using such strings in subterranean cementing ...
Número de solicitud: 10/973,618 Número de publicación: US 2006/0086503 A1 Fecha de presentación: 26 Oct 2004 Patente emitida: US7303014 ( Fecha de emisión 4 Dic 2007)
