1
Randy Gene Snider, David Shahin, Jim Allen, Kevin Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Moser Patterson & Sheridan L, March 25, 2003: US06536520 (178 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


2
Richard L Giroux, David Shahin, Adrian Vuyk Jr, Gary Thompson, Kevin Leon Gray, John Timothy Allen, Randy Gene Snider: Methods and apparatus for handling and drilling with tubulars or casing. Weatherford Lamb, Patterson & Sheridan, February 5, 2008: US07325610 (73 worldwide citation)

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head i ...


3
David Shahin, Karsten Heidecke: Flush mounted spider. Weatherford Lamb, Moser Patterson & Sheridan, May 17, 2005: US06892835 (55 worldwide citation)

A gripping apparatus for supporting a tubular includes a longitudinal opening extending therethrough. A bowl is formed on an inner wall of the housing to provide an incline surface for one or more gripping members. As the gripping members are move down along the incline, the incline causes the gripp ...


4
David Shahin, Jeff Habetz, David M Haugen, Gary Thompson, Bernd Georg Pietras, Jimmy L Hollingsworth, Bernd Reinholdt: Method and apparatus for drilling with casing. Weatherford Lamb, Patterson & Sheridan, November 28, 2006: US07140445 (46 worldwide citation)

Methods and apparatus for drilling with a top drive system are provided. In one aspect, a top drive system includes a top drive, top drive adapter, and a tubular positioning apparatus. In another aspect, the top drive adapter is pivotably connected to the top drive for pivoting the top drive adapter ...


5
Thomas Koithan, Graham Ruark, John W Newman, David M Haugen, David Shahin: Methods and apparatus for applying torque and rotation to connections. Weatherford Lamb, Patterson & Sheridan L, November 20, 2007: US07296623 (37 worldwide citation)

A method and apparatus for connecting threaded members while ensuring that a proper connection is made. In one embodiment, the applied torque and/or rotation are measured at regular intervals throughout a pipe connection makeup. When a shoulder contact is detected, a predetermined torque value and/o ...


6
Richard L Giroux, David Shahin, Adrian Vuyk Jr, Gary Thompson, Kevin Leon Gray, John Timothy Allen, Randy Gene Snider: Methods and apparatus for handling and drilling with tubulars or casing. Weatherford Lamb, Patterson & Sheridan, February 2, 2010: US07654325 (36 worldwide citation)

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head i ...


7
Randy Gene Snider, David Shahin, Jim Allen, Kevin Gray, Gary Thompson: Top drive casing system. Weatherford Lamb, Patterson & Sheridan, May 11, 2010: US07712523 (35 worldwide citation)

A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular ...


8
David Shahin, Karsten Heidecke: Adjustable rotating guides for spider or elevator. Weatherford Lamb, Patterson & Sheridan, February 7, 2006: US06994176 (35 worldwide citation)

The present invention provides a method and apparatus for gripping one or more tubulars, which may include casing, during a tubular handling operation, drilling operation, and/or drilling with casing operation. The gripping apparatus comprises a housing having a bore extending therethrough and one o ...


9
David Shahin, Karsten Heidecke: Flush mounted spider. Weatherford Lamb, Patterson & Sheridan, December 5, 2006: US07143849 (15 worldwide citation)

A gripping apparatus for supporting a tubular includes a longitudinal opening extending therethrough. A bowl is formed on an inner wall of the housing to provide an incline surface for one or more gripping members. As the gripping members are move down along the incline, the incline causes the gripp ...


10
David Shahin, Jeff Habetz, David M Haugen, Gary Thompson, Bernd Georg Pietras, Jimmy L Hollingsworth, Bernd Reinholdt: Method and apparatus for drilling with casing. Weatherford Lamb, Patterson & Sheridan, October 9, 2012: US08281877 (11 worldwide citation)

A top drive system includes a top drive, top drive adapter, and a tubular positioning apparatus. In another aspect, the top drive adapter includes a housing operatively connected to the top drive and a plurality of retaining members disposed in the housing for gripping the tubular. In another aspect ...