Patents by Inventor George Alexander Burnett

George Alexander Burnett has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11395983
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: July 26, 2022
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Publication number: 20200353387
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Applicant: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 10799817
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 13, 2020
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 10150066
    Abstract: A screen assembly for a shale shaker, the screen assembly including a support structure and at least one layer of screening material thereon. The support structure includes structural members having a thermal expansion coefficient and the at least one layer of screening material has a thermal expansion coefficient. The thermal expansion coefficient of the structural members is substantially equal to the thermal expansion coefficient of the at least one layer of screening material. A method for making a support structure for a screen assembly is also provided. The method includes placing at least one support member in a mold whereupon a flowable plastics material is injected into the mold, whereupon the flowable plastics material hardens, at least a portion of the flowable plastics material forming a brace.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 11, 2018
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Publication number: 20180028947
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Inventor: George Alexander Burnett
  • Patent number: 9815005
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: November 14, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 9677353
    Abstract: Methods and systems are disclosed employing a shale shaker for processing a mixture of drilling fluid and solids with multiple screen assemblies and conversion apparatus for switching flow to the screen assemblies between series flow and parallel flow; and in one aspect, a screen or screens for screening lost circulation material.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 13, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 9364777
    Abstract: An apparatus for separating solids from solids laden drilling fluid, the apparatus comprising a skid and a basket resiliently suspended thereto and a vibratory mechanism to vibrate the basket, the basket having at least one screen deck for receiving at least one screen, the basket having a feed end at which solids laden drilling fluid is introduced and a discharge end at which solids are discharged through a solids discharge opening, the apparatus further comprising a hood encompassing at least a discharge end of the basket and at least one extraction outlet arranged at the discharge end to remove fume laden air from the basket.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: June 14, 2016
    Assignee: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 9199278
    Abstract: A method for operating a shale shaker to separate solids from a solids laden fluid, the shale shaker comprising a basket for holding at least one screen and a vibratory mechanism for vibrating the basket to an acceleration value, the method comprising the steps of monitoring the magnitude of the load of solids laden fluid in the basket and adjusting the acceleration value induced in the basket according to the magnitude of the load, wherein the acceleration is stepped down to a low acceleration value below a low load threshold.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: December 1, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Eric Scott, George Alexander Burnett, Khaled El Dorry, Nahum Ronquillo
  • Patent number: 9079222
    Abstract: A shale shaker for separating solids from solids laden drilling fluid is disclosed as having a basket with a scalping screen deck, at least one first screen deck and at least one second screen deck. The basket further may have a flow tray arranged between said scalping screen deck and at least one first screen deck, and a plurality of first ducts and a plurality of second ducts, the plurality of first ducts for directing solids laden drilling fluid to the at least one first screen deck. The second plurality of second ducts are for directing solids laden drilling fluid to said second screen deck.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: July 14, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: George Alexander Burnett, Thomas Robert Larson
  • Patent number: 9073104
    Abstract: Generally, the present disclosure is related to systems and methods for separating hydrocarbons and/or other liquids from drill cuttings material. One illustrative embodiment disclosed herein is directed to a system that includes, among other things, a thermal reactor that is adapted to remove liquid from drill cuttings material by heating the drill cuttings material to at least a first temperature that is sufficiently high enough to vaporize the liquid. The illustrative system also includes a feeder system that is adapted to controllably feed a flow of the drill cuttings material to the thermal reactor, and a control system that is adapted to control the flow of the drill cuttings material from the feeder system so as to maintain a temperature in the thermal reactor at or above the first temperature.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 7, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: George Alexander Burnett, Brian Bender Madsen, Dale Alton Pierce
  • Publication number: 20150153102
    Abstract: A method of treating drilling cuttings includes controllably feeding a flow of drill cuttings material to a thermal reactor, removing liquid from the drill cuttings material with the thermal reactor, and increasing the flow of drill cuttings material to the thermal reactor when a temperature in the thermal reactor decreases.
    Type: Application
    Filed: January 19, 2015
    Publication date: June 4, 2015
    Inventors: George Alexander Burnett, Brian Bender Madsen, Dale Alton Pierce
  • Publication number: 20140190905
    Abstract: An apparatus for separating solids from solids laden drilling fluid, the apparatus comprising a skid and a basket resiliently suspended thereto and a vibratory mechanism to vibrate the basket, the basket having at least one screen deck for receiving at least one screen, the basket having a feed end at which solids laden drilling fluid is introduced and a discharge end at which solids are discharged through a solids discharge opening, the apparatus further comprising a hood encompassing at least a discharge end of the basket and at least one extraction outlet arranged at the discharge end to remove fume laden air from the basket.
    Type: Application
    Filed: April 23, 2012
    Publication date: July 10, 2014
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: George Alexander Burnett
  • Publication number: 20140054216
    Abstract: A screen assembly for a shale shaker, the screen assembly including a support structure and at least one layer of screening material thereon. The support structure includes structural members having a thermal expansion coefficient and the at least one layer of screening material has a thermal expansion coefficient. The thermal expansion coefficient of the structural members is substantially equal to the thermal expansion coefficient of the at least one layer of screening material. A method for making a support structure for a screen assembly is also provided. The method includes placing at least one support member in a mold whereupon a flowable plastics material is injected into the mould, whereupon the flowable plastics material hardens, at least a portion of the flowable plastics material forming a brace.
    Type: Application
    Filed: January 10, 2012
    Publication date: February 27, 2014
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: George Alexander Burnett
  • Publication number: 20140021120
    Abstract: Methods and systems are disclosed employing a shale shaker for processing a mixture of drilling fluid and solids with multiple screen assemblies and conversion apparatus for switching flow to the screen assemblies between series flow and parallel flow; and in one aspect, a screen or screens for screening lost circulation material.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 23, 2014
    Applicant: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 8556083
    Abstract: Methods and systems are disclosed employing a shale shaker for processing a mixture of drilling fluid and solids with multiple screen assemblies and conversion apparatus for switching flow to the screen assemblies between series flow and parallel flow; and in one aspect, a screen or screens for screening lost circulation material.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: October 15, 2013
    Assignee: National Oilwell Varco L.P.
    Inventor: George Alexander Burnett
  • Patent number: 8533974
    Abstract: The present disclosure is generally directed to systems that are used for reclaiming components of wellbore cuttings material. In one illustrative embodiment, a system is disclosed that includes, among other things, a dryer that is adapted to receive a drill cuttings mixture that includes drilling fluid and cuttings material, the dryer being further adapted to treat the drill cuttings mixture by drying the cuttings material below a preselected moisture content level. The system also includes a moisture sensor that is adapted to sense a moisture content of the cuttings material after it is dried by the dryer, and a cuttings reinjection system that is adapted to reinject the dried cuttings material into a well bore. Additionally, the system includes a conveyor system that is adapted to convey the dried cuttings material to the cuttings reinjection system, wherein the conveyor system includes, among other things, a positive pressure pneumatic conveying apparatus.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 17, 2013
    Assignee: Varco I/P, Inc.
    Inventor: George Alexander Burnett
  • Publication number: 20130105412
    Abstract: An apparatus for separating solids from solids laden drilling fluid is provided. The apparatus includes a shale shaker and a screen assembly. The shale shaker includes a base and a basket isolated from the base, a flow tray arranged in the basket for directing screened drilling fluid. The screen assembly includes at least one layer of screening material, a screen support having a perimeter with at least one support point within the perimeter, wherein the flow tray includes at least one raised portion to support the screen assembly. In some versions the shale shaker has a basket having side supports and at least one intermediate support arranged between the side supports. The screen assembly includes a screen support supporting at least one layer of screening material.
    Type: Application
    Filed: March 24, 2011
    Publication date: May 2, 2013
    Applicant: National Oilwell Varco, L.P.
    Inventor: George Alexander Burnett
  • Patent number: 8316557
    Abstract: A screen assembly for a shale shaker comprising a panel (500) and a support structure (600), the panel (500) having an area provided with a multiplicity of apertures and at least one layer of screening material arranged over the multiplicity of apertures, wherein said panel (500) is removable from said support structure (600).
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: November 27, 2012
    Assignee: Varco I/P, Inc.
    Inventor: George Alexander Burnett
  • Publication number: 20120073932
    Abstract: Generally, the present disclosure is related to systems and methods for separating hydrocarbons and/or other liquids from drill cuttings material. One illustrative embodiment disclosed herein is directed to a system that includes, among other things, a thermal reactor that is adapted to remove liquid from drill cuttings material by heating the drill cuttings material to at least a first temperature that is sufficiently high enough to vaporize the liquid. The illustrative system also includes a feeder system that is adapted to controllably feed a flow of the drill cuttings material to the thermal reactor, and a control system that is adapted to control the flow of the drill cuttings material from the feeder system so as to maintain a temperature in the thermal reactor at or above the first temperature.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 29, 2012
    Inventors: George Alexander Burnett, Brian Bender Madsen, Dale Alton Pierce