1
Bernd Georg Pietras, Thomas F Bailey, Adrian Vuyk Jr, Carl J Wilson: Casing running and drilling system. Weatherford Lamb, Patterson & Sheridan, March 20, 2007: US07191840 (67 worldwide citation)

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spear and the clamping head can be en ...


2
Bernd Georg Pietras, Thomas F Bailey, Adrian Vuyk Jr, Carl J Wilson: Casing running and drilling system. Weatherford Lamb, Patterson & Sheridan, April 7, 2009: US07513300 (40 worldwide citation)

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spear and the clamping head can be en ...


3
Pietras Bernd Georg, Bailey Thomas F, Vuyk Adrian Jr, Wilson Carl J: Casing running and drilling system. Weatherford Lamb, Pietras Bernd Georg, Bailey Thomas F, Vuyk Adrian Jr, Wilson Carl J, PATTERSON William B, September 16, 2004: WO/2004/079153 (5 worldwide citation)

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing (18), for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear (14) and a clamping head (16), both of which are mounted to a top drive (12). The spear and the cla ...


4
William Banning Vail III, Tomislav Skerl, Damir S Skerl: Mud motor assembly. Smart Drilling and Completion, Sheridan Ross P C, April 4, 2017: US09611693 (1 worldwide citation)

A longer-lasting, lower cost, more powerful, all metal, mud motor than the presently available progressing cavity type mud motors for drilling boreholes into the earth. A mud motor apparatus possessing one single drive shaft that turns a rotary drill bit, which apparatus is attached to a drill pipe ...


5
Pietras Bernd Georg, Bailey Thomas F, Vuyk Adrian Jr, Wilson Carl J: Systeme dexploitation et de forage avec cuvelage, Casing running and drilling system. Weatherford Lamb, Weatherford Lamb, Deeth Williams Wall, December 1, 2009: CA2517895 (1 worldwide citation)

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing (18), for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear (14) and a clamping head (16), both of which are mounted to a top drive (12). The spear and the cla ...


6
William Banning Vail III: Mud motor assembly. Smart Drilling and Completion, Sheridan Ross P C, August 29, 2017: US09745799

A longer-lasting, lower cost, more powerful, all metal, mud motor than the presently available progressing cavity type mud motors for drilling boreholes into the earth. A mud motor apparatus possessing one single drive shaft that turns a rotary drill bit, which apparatus is attached to a drill pipe ...


7
William Banning Vail III, Robert L Dekle, Damir S Skerl, James E Chitwood: Universal drilling and completion system. Smart Drilling and Completion, Sheridan Ross P C, March 7, 2017: US09587435

Methods and apparatus are described to drill and complete wellbores. Such wellbores include extended reach horizontal wellbores, for example in shales, deep subsea extended reach wellbores, and multilateral wellbores. Specifically, the invention provides simple threaded subassemblies that are added ...


8
Pietras Bernd Georg, Bailey Thomas F, Vuyk Adrian Jr, Wilson Carl J: Casing running and drilling system. Weatherford Lamb, January 4, 2006: GB2415722-A

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing (18), for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear (14) and a clamping head (16), both of which are mounted to a top drive (12). The spear and the cla ...


9
William Banning Vail III, Tomislav Skerl, Damir S Skerl: Mud motor assembly. Smart Drilling and Completion, Sheridan Ross P C, October 31, 2017: US09803424

A longer-lasting, lower cost, more powerful, all metal, mud motor than the presently available progressing cavity type mud motors for drilling boreholes into the earth. A mud motor apparatus possessing one single drive shaft that turns a rotary drill bit, which apparatus is attached to a drill pipe ...


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