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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US451958512 Oct 198228 May 1985Cooper IndustriesDrawworks brake control
US479342113 Jul 198727 Dic 1988Becor Western Inc.Programmed automatic drill control
US485266519 Nov 19871 Ago 1989Schlumberger Technology CorporationMethod for monitoring the operations of the rotary drilling of a well
US494195127 Feb 198917 Jul 1990Anadrill, Inc.Method for improving a drilling process by characterizing the hydraulics of the drilling system
US571342228 Feb 19943 Feb 1998Apparatus and method for drilling boreholes
US686892031 Dic 200222 Mar 2005Schlumberger Technology CorporationMethods and systems for averting or mitigating undesirable drilling events
US702695027 Feb 200411 Abr 2006Varco I/P, Inc.Motor pulse controller
US710070823 Dic 20035 Sep 2006Varco I/P, Inc.Autodriller bit protection system and method
US712816726 Mar 200331 Oct 2006Schlumberger Technology CorporationSystem and method for rig state detection
US727854025 Sep 20049 Oct 2007Varco I/P, Inc.Adjustable basket vibratory separator
US733146929 Abr 200419 Feb 2008Varco I/P, Inc.Vibratory separator with automatically adjustable beach
US742207631 Ago 20069 Sep 2008Varco I/P, Inc.Autoreaming systems and methods
US757181720 Oct 200511 Ago 2009Varco I/P, Inc.Automatic separator or shaker with electromagnetic vibrator apparatus

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