Patents by Inventor Swarupa Soma Bangaru
Swarupa Soma Bangaru 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: 9896748Abstract: A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03 wt %; titanium of about 0.005 wt % to about 0.02 wt %; nitrogen of about 0.001 wt % to about 0.01 wt %; silicon of about 0.01 wt % to about 0.5 wt %; manganese of about 0.5 wt % to about 2.0 wt %; and a total of molybdenum, chromium, vanadium and copper less than about 0.15 wt %. The steel may have a first phase consisting of ferrite and a second phase having one or more of carbide, pearlite, martensite, lower bainite, granular bainite, upper bainite, and degenerate upper bainite. A solute carbon content in the first phase may be about 0.01 wt % or less.Type: GrantFiled: January 30, 2012Date of Patent: February 20, 2018Assignee: Exxon Mobil Upstream Research CompanyInventors: Jayoung Koo, Narasimha-Rao V. Bangaru, Swarupa Soma Bangaru, Hyun-Woo Jin, Adnan Ozekcin, Raghavan Ayer, Douglas P. Fairchild, Danny L. Beeson, Douglas S. Hoyt, James B. LeBleu, Jr., Shigeru Endo, Mitsuhiro Okatsu, Shinichi Kakihara, Moriyasu Nagae
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Patent number: 8589136Abstract: Methods and systems of reducing drilling vibrations include generation a vibration performance index using at least one frequency-domain model having a velocity-dependent friction relationship. The vibration performance index may be used to aid in the design or manufacture of a drill tool assembly. Additionally or alternatively, the vibration performance index may inform drilling operations to reduce vibrations.Type: GrantFiled: May 28, 2009Date of Patent: November 19, 2013Assignee: ExxonMobil Upstream Research CompanyInventors: Mehmet Deniz Ertas, Erika A. O. Biediger, Shankar Sundararaman, Jeffrey R. Bailey, Vishwas Gupta, Swarupa Soma Bangaru
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Patent number: 8286715Abstract: Provided are coated sleeved oil and gas well production devices and methods of making and using such coated sleeved devices. In one form, the coated sleeved oil and gas well production device includes an oil and gas well production device including one or more bodies and one or more sleeves proximal to the outer or inner surface of the one or more bodies, and a coating on at least a portion of the inner sleeve surface, outer sleeve surface, or a combination thereof, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS2, WS2, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof.Type: GrantFiled: February 22, 2010Date of Patent: October 16, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Jeffrey Roberts Bailey, Erika Ann Ooten Biediger, Narasimha-Rao Venkata Bangaru, Swarupa Soma Bangaru, legal representative, Adnan Ozekcin, Hyun-Woo Jin, Mehmet Deniz Ertas, Raghavan Ayer, William Curtis Elks, Charles Shiao-Hsiung Yeh, Michael David Barry, Michael Thomas Hecker
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Patent number: 8261841Abstract: Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated oil and gas well production device includes an oil and gas well production device including one or more bodies, and a coating on at least a portion of the one or more bodies, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS2, WS2, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof. The coated oil and gas well production devices may provide for reduced friction, wear, corrosion, erosion, and deposits for well construction, completion and production of oil and gas.Type: GrantFiled: August 18, 2009Date of Patent: September 11, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Jeffrey Roberts Bailey, Erika Ann Ooten Biediger, Narasimha-Rao Venkata Bangaru, Swarupa Soma Bangaru, legal representative, Adnan Ozekcin, Hyun-Woo Jin, Charles Shiao-Hsiung Yeh, Michael D. Barry, Michael T. Hecker, Mehmet Deniz Ertas
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Patent number: 8220563Abstract: Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly or a coiled tubing coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, wherein the coefficient of friction of the ultra-low friction coating is less than or equal to 0.15. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.Type: GrantFiled: August 18, 2009Date of Patent: July 17, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Narasimha-Rao Venkata Bangaru, Swarupa Soma Bangaru, legal representative, Adnan Ozekcin, Hyun-Woo Jin, Erika Ann Ooten Biediger, Jeffrey Roberts Bailey, Vishwas Gupta, Mehmet Deniz Ertas, William Curtis Elks, Jr.
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Publication number: 20110077924Abstract: Methods and systems of reducing drilling vibrations include generation a vibration performance index using at least one frequency-domain model having a velocity-dependent friction relationship. The vibration performance index may be used to aid in the design or manufacture of a drill tool assembly. Additionally or alternatively, the vibration performance index may inform drilling operations to reduce vibrations.Type: ApplicationFiled: May 28, 2009Publication date: March 31, 2011Inventors: Mehmet Deniz Ertas, Erika A.O. Biediger, Shankar Sundararaman, Jeffrey R. Bailey, Vishwas Gupta, Narasimha-Rao V. Bangaru, Swarupa Soma Bangaru
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Publication number: 20110042069Abstract: Provided are coated sleeved oil and gas well production devices and methods of making and using such coated sleeved devices. In one form, the coated sleeved oil and gas well production device includes an oil and gas well production device including one or more bodies and one or more sleeves proximal to the outer or inner surface of the one or more bodies, and a coating on at least a portion of the inner sleeve surface, outer sleeve surface, or a combination thereof, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS2, WS2, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof.Type: ApplicationFiled: February 22, 2010Publication date: February 24, 2011Inventors: Jeffrey Roberts Bailey, Erika Ann Ooten Biediger, Narasimha-Rao Venkata Bangaru, Adnan Ozekcin, Hyun-Woo Jin, Mehmet Deniz Ertas, Raghavan Ayer, William Curtis Elks, Charles Shiao-Hsiung Yeh, Michael David Barry, Michael Thomas Hecker, Swarupa Soma Bangaru
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Publication number: 20100206553Abstract: Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated oil and gas well production device includes an oil and gas well production device including one or more bodies, and a coating on at least a portion of the one or more bodies, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS2, WS2, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof. The coated oil and gas well production devices may provide for reduced friction, wear, corrosion, erosion, and deposits for well construction, completion and production of oil and gas.Type: ApplicationFiled: August 18, 2009Publication date: August 19, 2010Inventors: Jeffrey Roberts Bailey, Erika Ann Ooten Biediger, Narasimha-Rao Venkata Bangaru, Adnan Ozekcin, Hyun-Woo Jin, Charles Shiao-Hsiung Yeh, Michael D. Barry, Michael T. Hecker, Mehmet Deniz Ertas, Swarupa Soma Bangaru
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Publication number: 20100044110Abstract: Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly or a coiled tubing coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, wherein the coefficient of friction of the ultra-low friction coating is less than or equal to 0.15. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.Type: ApplicationFiled: August 18, 2009Publication date: February 25, 2010Inventors: Narasimha-Rao V. Bangru, Adnan Ozekcin, Hyun-Woo Jin, Erika Ann Ooten Biediger, Jeffrey Roberts Bailey, Vishwas Gupta, Mehmet Deniz Ertas, William Curtis Elks, JR., Swarupa Soma Bangaru
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Publication number: 20090301613Abstract: A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03 wt %; titanium of about 0.005 wt % to about 0.02 wt %; nitrogen of about 0.001 wt % to about 0.01 wt %; silicon of about 0.01 wt % to about 0.5 wt %; manganese of about 0.5 wt % to about 2.0 wt %; and a total of molybdenum, chromium, vanadium and copper less than about 0.15 wt %. The steel may have a first phase consisting of ferrite and a second phase having one or more of carbide, pearlite, martensite, lower bainite, granular bainite, upper bainite, and degenerate upper bainite. A solute carbon content in the first phase may be about 0.01 wt % or less.Type: ApplicationFiled: April 6, 2009Publication date: December 10, 2009Inventors: Jayoung Koo, Swarupa Soma Bangaru, Hyun-Woo Jin, Adnan Ozekcin, Raghavan Ayer, Douglas P. Fairchild, Danny L. Beeson, Douglas S. Hoyt, James B. LeBleu, JR., Shigeru Endo, Mitsuhiro Okatsu, Shinichi Kakihara, Moriyasu Nagae