Patents by Inventor Sashikumar Mettath

Sashikumar Mettath 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: 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
  • Publication number: 20190078009
    Abstract: The invention relates an additive composition for a drilling fluid, as well as a method of increasing the lubricity and reducing the coefficient of friction of a drilling fluid. The additive composition may further contain a sulfurized olefin and/or a metal dithiophosphate compound, which further enhances the lubricating effect.
    Type: Application
    Filed: November 1, 2016
    Publication date: March 14, 2019
    Inventors: Sashikumar Mettath, Zen-Yu Chang
  • Publication number: 20180215990
    Abstract: In one aspect, embodiments disclosed herein relate to a wellbore strengthening composition including at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane (meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the wherein R and R1-R5 may be CH3— or H and R6-R21 may be H or Br, and polymer combinations thereof; and at least one initiator, wherein the resin is present in the amount from about 10 to about 90 weight percent.
    Type: Application
    Filed: March 27, 2018
    Publication date: August 2, 2018
    Applicant: M-I L.L.C.
    Inventor: Sashikumar Mettath
  • Patent number: 9926484
    Abstract: In one aspect, embodiments disclosed herein relate to a wellbore strengthening composition including at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane (meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the formula (I), wherein R and R1-R5 may be CH3— or H and R6-R21 may be H or Br, and polymer combinations thereof; and at least one initiator, wherein the resin is present in the amount from about 10 to about 90 weight percent.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: March 27, 2018
    Assignee: M-1 L.L.C.
    Inventor: Sashikumar Mettath
  • Publication number: 20180072937
    Abstract: There is disclosed an additive composition for a drilling fluid, as well as a method of increasing the lubricity and reducing the coefficient of friction of a drilling fluid. The additive composition contains a polymeric ester formed from the reaction product of i) a triglyceride of a hydroxy fatty acid; ii) at least one dicarboxylic acid or an ester or anhydride thereof; iii) and a polyalkylene glycol.
    Type: Application
    Filed: April 12, 2016
    Publication date: March 15, 2018
    Inventors: Sashikumar Mettath, Zen-Yu Chang
  • Publication number: 20150175871
    Abstract: A breaker fluid composition and methods for using said breaker fluid composition are provided, where the breaker fluid includes a non-aqueous base fluid, a precipitated silica, an acid source, and, in some embodiments, a chelant.
    Type: Application
    Filed: July 9, 2013
    Publication date: June 25, 2015
    Applicant: M-I, L.L.C.
    Inventors: Sashikumar Mettath, Mark Luyster
  • 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
  • Patent number: 8871690
    Abstract: A composition that includes a product resulting from a condensation reaction of quebracho with at least one organophilic species that includes a reactive amine is disclosed.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: October 28, 2014
    Assignee: M-I L.L.C.
    Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
  • Publication number: 20140290954
    Abstract: In one aspect, embodiments disclosed herein relate to a wellbore strengthening composition including at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane(meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the wherein R and R1-R5 may be CH3— or H and R6-R21 may be H or Br, and polymer combinations thereof; and at least one initiator, wherein the resin is present in the amount from about 10 to about 90 weight percent.
    Type: Application
    Filed: January 26, 2012
    Publication date: October 2, 2014
    Applicant: M-I L.L.C.
    Inventor: Sashikumar Mettath
  • Publication number: 20130331302
    Abstract: A composition that includes a product resulting from a condensation reaction of quebracho with at least one organophilic species that includes a reactive amine is disclosed.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicant: M-I L.L.C.
    Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
  • Patent number: 8524640
    Abstract: A composition that includes a product resulting from a condensation reaction of quebracho with at least one organophilic species that includes a reactive amine is disclosed.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: September 3, 2013
    Assignee: M-I L.L.C.
    Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
  • Patent number: 8193124
    Abstract: A wellbore fluid that includes an oleaginous base fluid; and a silanated weighting agent is disclosed. In particular, the silanated weighting agents may be produced by reaction between an alkyl alkoxy silane and a weighting agent Methods of formulating such fluids and methods of drilling using such fluids are also disclosed.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: June 5, 2012
    Assignee: M-I L.L.C.
    Inventors: Sashikumar Mettath, Steven Young
  • Publication number: 20110094747
    Abstract: A method of removing clay compounded on drilling equipment in a well that includes contacting the drilling equipment with a treatment fluid comprising an oxidizing agent.
    Type: Application
    Filed: May 9, 2008
    Publication date: April 28, 2011
    Applicant: M-I L.L.C.
    Inventors: Sashikumar Mettath, Arvind D. Patel, Emanuel Stamatakis, Steven Young
  • Publication number: 20100311619
    Abstract: A wellbore fluid that includes an oleaginous base fluid; and a silanated weighting agent is disclosed. In particular, the silanated weighting agents may be produced by reaction between an alkyl alkoxy silane and a weighting agent Methods of formulating such fluids and methods of drilling using such fluids are also disclosed.
    Type: Application
    Filed: January 22, 2009
    Publication date: December 9, 2010
    Applicant: M-I L.L.C.
    Inventors: Sashikumar Mettath, Steven Young
  • Publication number: 20080009421
    Abstract: A composition that includes a product resulting from a condensation reaction of quebracho with at least one organophilic species that includes a reactive amine is disclosed.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 10, 2008
    Applicant: M-I LLC
    Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim