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).
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Patent number: 10597576Abstract: 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: GrantFiled: November 1, 2016Date of Patent: March 24, 2020Assignee: THE LUBRIZOL CORPORATIONInventors: Sashikumar Mettath, Zen-Yu Chang
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Patent number: 10400155Abstract: A insulating annular fluid for reducing convective currents in the annular region a wellbore is provided that includes an oleaginous fluid, a silica, and, in some embodiments, organoclay.Type: GrantFiled: July 8, 2013Date of Patent: September 3, 2019Assignee: M-I L.L.C.Inventors: Sashikumar Mettath, Steven Young, Emanuel Stamatakis, Balakrishnan Panamarathupalayam, Changping Sui
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Patent number: 10280355Abstract: 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: GrantFiled: July 9, 2013Date of Patent: May 7, 2019Assignee: M-I L.L.C.Inventors: Mark Luyster, Leigh Gray, Sashikumar Mettath, Steven Young, Emanuel Stamatakis
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Publication number: 20190078009Abstract: 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: ApplicationFiled: November 1, 2016Publication date: March 14, 2019Inventors: Sashikumar Mettath, Zen-Yu Chang
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Publication number: 20180215990Abstract: 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: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: M-I L.L.C.Inventor: Sashikumar Mettath
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Patent number: 9926484Abstract: 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: GrantFiled: January 26, 2012Date of Patent: March 27, 2018Assignee: M-1 L.L.C.Inventor: Sashikumar Mettath
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Publication number: 20180072937Abstract: 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: ApplicationFiled: April 12, 2016Publication date: March 15, 2018Inventors: Sashikumar Mettath, Zen-Yu Chang
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Publication number: 20150175871Abstract: 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: ApplicationFiled: July 9, 2013Publication date: June 25, 2015Applicant: M-I, L.L.C.Inventors: Sashikumar Mettath, Mark Luyster
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Publication number: 20150159074Abstract: 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: ApplicationFiled: July 9, 2013Publication date: June 11, 2015Applicant: M-I, L.L.C.Inventors: Mark Luyster, Leigh Gray, Sashikumar Mettath, Steven Young, Emanuel Stamatakis
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Patent number: 8871690Abstract: 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: GrantFiled: August 14, 2013Date of Patent: October 28, 2014Assignee: M-I L.L.C.Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
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Publication number: 20140290954Abstract: 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: ApplicationFiled: January 26, 2012Publication date: October 2, 2014Applicant: M-I L.L.C.Inventor: Sashikumar Mettath
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Publication number: 20130331302Abstract: 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: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicant: M-I L.L.C.Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
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Patent number: 8524640Abstract: 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: GrantFiled: July 2, 2007Date of Patent: September 3, 2013Assignee: M-I L.L.C.Inventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim
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Patent number: 8193124Abstract: 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: GrantFiled: January 22, 2009Date of Patent: June 5, 2012Assignee: M-I L.L.C.Inventors: Sashikumar Mettath, Steven Young
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Publication number: 20110094747Abstract: 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: ApplicationFiled: May 9, 2008Publication date: April 28, 2011Applicant: M-I L.L.C.Inventors: Sashikumar Mettath, Arvind D. Patel, Emanuel Stamatakis, Steven Young
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Publication number: 20100311619Abstract: 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: ApplicationFiled: January 22, 2009Publication date: December 9, 2010Applicant: M-I L.L.C.Inventors: Sashikumar Mettath, Steven Young
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Publication number: 20080009421Abstract: 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: ApplicationFiled: July 2, 2007Publication date: January 10, 2008Applicant: M-I LLCInventors: Arvind D. Patel, Sashikumar Mettath, Emanuel Stamatakis, Steve Young, Jim Friedheim