Patents by Inventor G. Wray Curtis

G. Wray Curtis 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).

  • Vermiculture compositions
    Patent number: 8735141
    Abstract: A biodegradable wellbore fluid with an oleaginous phase including a linear paraffin having 11-18 carbon atoms, a non-oleaginous phase, an emulsifying agent and optionally a weighting agent. Use of the fluid while drilling allows bio-remediation of drill cuttings using land spreading, bioreactors, conventional composting or vermiculture composting. The resulting product, especially when vermicomposed, is potentially useful as a soil amendment or plant fertilizer material.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: May 27, 2014
    Assignee: M-I L.L.C.
    Inventors: Frederick Growcock, G. Wray Curtis, John Candler, Stephen Rabke, Sonya Ross, Jonathan Getliff, Greg McEwan
  • TRANSFER OF FINELY GROUND WEIGHT MATERIAL
    Publication number: 20080107513
    Abstract: A method for transferring a finely ground weight material for use in drilling fluids including providing the finely ground weight material to a pneumatic transfer vessel and supplying an air flow to the finely ground weight material in the pneumatic transfer vessel. Furthermore, transferring the finely ground weight material from the pneumatic transfer vessel to a storage vessel. Additionally, a method for transferring a finely ground weight material for use in drilling fluids including modifying a particle distribution of the finely ground weight material and sealing the finely ground weight material in a pneumatic transfer vessel. Further, supplying an air flow to the finely ground weight material in the pneumatic transfer vessel and transferring the finely ground weight material from the pneumatic transfer vessel to a storage vessel.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 8, 2008
    Applicant: M-I LLC
    Inventors: G. Wray Curtis, John Lee, Steve Young, Wayne Matlock
  • Vermiculture compositions
    Patent number: 6838082
    Abstract: A biodegradable wellbore fluid with an oleaginous phase including a linear paraffin having 11-18 carbon atoms, a non-oleaginous phase, an emulsifying agent and optionally a weighting agent. Use of the fluid while drilling allows bio-remediation of drill cuttings using land spreading, bioreactors, conventional composting or vermiculture composting. The resulting product, especially when vermicomposed, is potentially useful as a soil amendment or plant fertilizer material.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: January 4, 2005
    Assignee: M-I LLC
    Inventors: Fredrick Growcock, G. Wray Curtis, John Candler, Stephen Rabke, Sonya Ross, Jonathan Getliff, Greg McEwan
  • Oleaginous drilling fluid that produces a useful soil amendment, method of use and bio-remediation of the same and resulting solids
    Publication number: 20030098180
    Abstract: A biodegradable wellbore fluid with an oleaginous phase including a linear paraffin having 11-18 carbon atoms, a non-oleaginous phase, an emulsifying agent and optionally a weighting agent. Use of the fluid while drilling allows bio-remediation of drill cuttings using land spreading, bioreactors, conventional composting or vermiculture composting. The resulting product, especially when vermicomposed, is potentially useful as a soil amendment or plant fertilizer material.
    Type: Application
    Filed: February 14, 2002
    Publication date: May 29, 2003
    Inventors: Frederick Growcock, G. Wray Curtis, John Candler, Stephen Rabke, Sonya Ross, Jonathan Getliff, Greg McEwan