Patents by Inventor Leigh Gray

Leigh Gray 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).

  • Reservoir wellbore fluid
    Patent number: 10280355
    Abstract: In one aspect, embodiments disclosed herein relate to an oil-based wellbore fluid. The oil-based wellbore fluid may include an oleaginous liquid and a surface-modified precipitated silica, wherein the surface-modified precipitated silica comprises a lipophilic coating. In another aspect, embodiments disclosed herein relate to a method of drilling or servicing a well. The method may include circulating a wellbore fluid, such as that described in the paragraph above, into a wellbore, and recovering at least a portion of the wellbore fluid from the wellbore.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: May 7, 2019
    Assignee: M-I L.L.C.
    Inventors: Mark Luyster, Leigh Gray, Sashikumar Mettath, Steven Young, Emanuel Stamatakis
  • RESERVOIR WELLBORE FLUID
    Publication number: 20150159074
    Abstract: In one aspect, embodiments disclosed herein relate to an oil-based wellbore fluid. The oil-based wellbore fluid may include an oleaginous liquid and a surface-modified precipitated silica, wherein the surface-modified precipitated silica comprises a lipophilic coating. In another aspect, embodiments disclosed herein relate to a method of drilling or servicing a well. The method may include circulating a wellbore fluid, such as that described in the paragraph above, into a wellbore, and recovering at least a portion of the wellbore fluid from the wellbore.
    Type: Application
    Filed: July 9, 2013
    Publication date: June 11, 2015
    Applicant: M-I, L.L.C.
    Inventors: Mark Luyster, Leigh Gray, Sashikumar Mettath, Steven Young, Emanuel Stamatakis