Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Búsqueda avanzada de patentes | Historial web | Iniciar sesión

Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US725214722 Jul 20047 Ago 2007Halliburton Energy Services, Inc.Cementing methods and systems for initiating fluid flow with reduced pumping pressure
US727018316 Nov 200418 Sep 2007Halliburton Energy Services, Inc.Cementing methods using compressible cement compositions
US728460826 Oct 200423 Oct 2007Halliburton Energy Services, Inc.Casing strings and methods of using such strings in subterranean cementing operations
US729061122 Jul 20046 Nov 2007Halliburton Energy Services, Inc.Methods and systems for cementing wells that lack surface casing
US729061216 Dic 20046 Nov 2007Halliburton Energy Services, Inc.Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore
US730300826 Oct 20044 Dic 2007Halliburton Energy Services, Inc.Methods and systems for reverse-circulation cementing in subterranean formations
US730301426 Oct 20044 Dic 2007Halliburton Energy Services, Inc.Casing strings and methods of using such strings in subterranean cementing operations
US732241230 Ago 200429 Ene 2008Halliburton Energy Services, Inc.Casing shoes and methods of reverse-circulation cementing of casing
US735718120 Sep 200515 Abr 2008Halliburton Energy Services, Inc.Apparatus for autofill deactivation of float equipment and method of reverse cementing
US738981527 Sep 200724 Jun 2008Halliburton Energy Services, Inc.Methods for reverse-circulation cementing in subterranean formations
US739284020 Dic 20051 Jul 2008Halliburton Energy Services, Inc.Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs
US740164627 Sep 200722 Jul 2008Halliburton Energy Services Inc.Methods for reverse-circulation cementing in subterranean formations
US740444027 Sep 200729 Jul 2008Halliburton Energy Services, Inc.Methods of using casing strings in subterranean cementing operations
US740999127 Sep 200712 Ago 2008Halliburton Energy Services, Inc.Methods of using casing strings in subterranean cementing operations
US745181727 Sep 200718 Nov 2008Halliburton Energy Services, Inc.Methods of using casing strings in subterranean cementing operations
US74697426 Jun 200630 Dic 2008Well cap method and apparatus
US750339914 Nov 200717 Mar 2009Halliburton Energy Services, Inc.Casing shoes and methods of reverse-circulation cementing of casing
US75337284 Ene 200719 May 2009Halliburton Energy Services, Inc.Ball operated back pressure valve
US75337291 Nov 200519 May 2009Halliburton Energy Services, Inc.Reverse cementing float equipment
US75971466 Oct 20066 Oct 2009Halliburton Energy Services, Inc.Methods and apparatus for completion of well bores
US761445116 Feb 200710 Nov 2009Halliburton Energy Services, Inc.Method for constructing and treating subterranean formations
US762133614 Nov 200724 Nov 2009Halliburton Energy Services, Inc.Casing shoes and methods of reverse-circulation cementing of casing
US762133714 Nov 200724 Nov 2009Halliburton Energy Services, Inc.Casing shoes and methods of reverse-circulation cementing of casing
US765432416 Jul 20072 Feb 2010Halliburton Energy Services, Inc.Reverse-circulation cementing of surface casing
US793818614 Nov 200710 May 2011Halliburton Energy Services Inc.Casing shoes and methods of reverse-circulation cementing of casing
US816204712 Nov 200924 Abr 2012Halliburton Energy Services Inc.Reverse-circulation cementing of surface casing

Dibujos