1
Gregory G Galloway, David J Brunnert: Drilling with concentric strings of casing. Weatherford Lamb, Moser Patterson & Sheridan L, February 22, 2005: US06857487 (102 worldwide citation)

The present invention provides a method and apparatus for setting concentric casing strings within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system comprising concentric casing strings, with each casing string having a dri ...


2
Galloway Gregory Guy, Brunnert David J: Drilling with concentric strings of casing. Weatherford Lamb, July 7, 2004: GB2396870-A (16 worldwide citation)

A method and apparatus for setting concentric casing strings 12, 15, 18 within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system 9 comprising concentric casing strings 12, 15, 18 with each casing string having a drill bit p ...


3
Gregory G Galloway, David J Brunnert: Drilling with concentric strings of casing. Moser Patterson & Sheridan, July 1, 2004: US20040124010-A1 (2 worldwide citation)

The present invention provides a method and apparatus for setting concentric casing strings within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system comprising concentric casing strings, with each casing string having a dri ...


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
Gregory G Galloway, David J Brunnert: Drilling with concentric strings of casing. Weatherford Lamb, Patterson & Sheridan L, November 7, 2006: US07131505

The present invention provides a method and apparatus for setting concentric casing strings within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system comprising concentric casing strings, with each casing string having a dri ...


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
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 ...


9
Galloway Gregory G, Brunnert David J: Forage a colonnes de tubage concentriques, Drilling with concentric strings of casing. Weatherford Lamb, Weatherford Lamb, DEETH WILLIAMS WALL, August 14, 2007: CA2453768

The present invention provides a method and apparatus for setting concentric casing strings within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system comprising concentric casing strings, with each casing string having a dri ...


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