Swarupa L Bangaru

20090301613, Dec 10, 2009

Apr 6, 2009

12/418767

Jayoung Koo - Sommerset NJ, US
Swarupa Soma Bangaru - Pittstown NJ, US
Hyun-Woo Jin - Easton PA, US
Adnan Ozekcin - Bethlehem PA, US
Raghavan Ayer - Basking Ridge NJ, US
Douglas P. Fairchild - Sugar Land TX, US
Danny L. Beeson - Houston TX, US
Douglas S. Hoyt - The Woodlands TX, US
Shigeru Endo - Tokyo, JP
Mitsuhiro Okatsu - Tokyo, JP
Shinichi Kakihara - Tokyo, JP
Moriyasu Nagae - Tokyo, JP

C21D 9/08
C21D 8/02
C21D 1/70
C22C 38/00
C22C 38/08

148537, 148645, 148624, 148593, 148320, 148336, 148330

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.

20100044110, Feb 25, 2010

Aug 18, 2009

12/583292

Adnan Ozekcin - Bethlehem PA, US
Hyun-Woo Jin - Easton PA, US
Erika Ann Ooten Biediger - Houston TX, US
Jeffrey Roberts Bailey - Houston TX, US
Vishwas Gupta - Sugar Land TX, US
Mehmet Deniz Ertas - Bethlehem PA, US
Swarupa Soma Bangaru - Pittstown NJ, US

E21B 17/00
E21B 7/00
E21B 7/04
E21B 7/06

175 61, 175320, 175 57, 175 62

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.

20100206553, Aug 19, 2010

Aug 18, 2009

12/583302

Jeffrey Roberts Bailey - Houston TX, US
Erika Ann Ooten Biediger - Houston TX, US
Narasimha-Rao Venkata Bangaru - Pittstown NJ, US
Adnan Ozekcin - Bethlehem PA, US
Hyun-Woo Jin - Easton PA, US
Charles Shiao-Hsiung Yeh - Spring TX, US
Michael D. Barry - The Woodlands TX, US
Michael T. Hecker - Tomball TX, US
Mehmet Deniz Ertas - Bethlehem PA, US
Swarupa Soma Bangaru - Pittstown NJ, US

E21B 41/00
E21B 17/00

1662441, 1662421, 166243

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, MoS, WS, 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.

20110042069, Feb 24, 2011

Feb 22, 2010

12/660179

Jeffrey Roberts Bailey - Houston TX, US
Erika Ann Ooten Biediger - Houston TX, US
Narasimha-Rao Venkata Bangaru - Pittstown NJ, US
Adnan Ozekcin - Bethlehem PA, US
Hyun-Woo Jin - Easton PA, US
Mehmet Deniz Ertas - Bethlehem PA, US
Raghavan Ayer - Basking Ridge NJ, US
William Curtis Elks - The Woodlands TX, US
Charles Shiao-Hsiung Yeh - Spring TX, US
Michael David Barry - The Woodlands TX, US
Michael Thomas Hecker - Tomball TX, US
Swarupa Soma Bangaru - Pittstown NJ, US

E21B 41/00
E21B 17/00

1662441, 1662421, 166243

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, MoS, WS, 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 sleeved oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.

20110077924, Mar 31, 2011

May 28, 2009

12/989183

Mehmet Deniz Ertas - Bethlehem PA, US
Erika A.O. Biediger - Houston TX, US
Shankar Sundararaman - Houston TX, US
Jeffrey R. Bailey - Houston TX, US
Vishwas Gupta - Sugar Land TX, US
Narasimha-Rao V. Bangaru - Pittstown NJ, US
Swarupa Soma Bangaru - Pittstown NJ, US

G06F 17/50

703 2

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.

20110120723, May 26, 2011

May 2, 2008

12/600949

Dylan V. Pugh - Manvel TX, US
Joseph C. Bondos - Houston TX, US
Shiun Ling - Washington NJ, US
Raghavan Ayer - Basking Ridge NJ, US
Shalawn K. Jackson - Houston TX, US
Narasimha-Rao V. Bangaru - Pittstown NJ, US
Swarupa S. Bangaru - Pittstown NJ, US
Jayoung Koo - Seoul, KR

E21B 43/00
C22C 38/14
C22C 38/12
C21D 6/00

166369, 148333, 148660

The present application describes a steel composition that provides enhanced corrosion resistance. This steel composition includes one of vanadium in an amount of 1 wt % to 9 wt %, titanium in an amount of about 1 wt % to 9 wt %, and a combination of vanadium and titanium in an amount of 1 wt % to about 9 wt %. In addition, the steel composition includes carbon in an amount of 0.03 wt % to about 0.45 wt %, manganese in an amount up to 2 wt % and silicon in an amount up to 0.45 wt %. In one embodiment, the steel composition includes a microstructure of one of the following: ferrite, martensite, tempered martensite, dual phase ferrite and martensite, and dual phase ferrite and tempered martensite. Further, the present application describes a method for processing the steel composition and use of equipment such as oil country tubular goods, fabricated with the steel composition.

20120118637, May 17, 2012

Jun 28, 2010

13/386612

Jingbo Wang - New York NY, US
Krishnan Kumaran - Raritan NJ, US
Peng Xu - Annandale NJ, US
Steven F, Sovers - Victoria, AU
Lei Wang - Sugar land TX, US
Jeffrey R. Bailey - Houston TX, US
Erika A.O. Biediger - Houston TX, US
Vishwas Gupta - Sugar TX, US
Swarupa S. Bangaru - Pittstown NJ, US
Narasimha-Rao V. Bangaru - Pittstown NJ, US

E21B 44/00
G05B 13/04
E21B 7/00

175 24, 700 29, 700 30

Methods and systems for controlling drilling operations include using a statistical model to identify at least one controllable drilling parameter having significant correlation to an objective function incorporating two or more drilling performance measurements. The methods and systems further generate operational recommendations for at least one controllable drilling parameter based at least in part on the statistical model. The operational recommendations are selected to optimize the objective function.

20120123756, May 17, 2012

Jun 28, 2010

13/386610

Jingbo Wang - New York NY, US
Krishnan Kumaran - Raritan NJ, US
Peng Xu - Annandale NJ, US
Steven F. Sowers - Victoria, AU
Lei Wang - Sugar Land TX, US
Jeffrey R. Bailey - Houston TX, US
Erika A.O. Biediger - Houston TX, US
Vishwas Gupta - Sugar Land TX, US
Narasimha-Rao V. Bangaru - Pittstown NJ, US
Swarupa S. Bangaru - Pittstown NJ, US

G01V 1/40
G06F 17/10

703 2

Methods and systems for controlling drilling operations include using a statistical model to identify at least two controllable drilling parameters having significant correlation to one or more drilling performance measurements. The methods and systems further generate operational recommendations for at least two controllable drilling parameters based at least in part on the statistical model. The operational recommendations are selected to optimize one or more drilling performance measurements.