Oleksandr V Kuznetsov

US Patent:

20100317820, Dec 16, 2010

Filed:

Jul 23, 2008

Appl. No.:

12/670068

Inventors:

Valery N. Khabashesku - Houston TX, US
Oleksandr Kuznetsov - Houston TX, US
Rui Lobo - Almada, PT

Assignee:

William Marsh Rice University - Houston TX

International Classification:

C08G 65/04
C07H 15/24

US Classification:

528 60, 536120, 977742, 977745, 977750, 977752

Abstract:

A method of making a water soluble carbon nanostructure includes treating a fluorinated carbon nanostructure material with a polyol in the presence of a base. A water soluble carbon nanostructure comprises a fluorinated carbon nanostructure covalently bound to a polyol. Exemplary uses of water soluble carbon nanostructures include use in polymer composites, biosensors and drug delivery vehicles.

US Patent:

20120324799, Dec 27, 2012

Filed:

Jun 22, 2011

Appl. No.:

13/166557

Inventors:

Soma Chakraborty - Houston TX, US
Oleksandr Kuznetsov - Houston TX, US
Gaurav Agrawal - Aurora CO, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

C09K 3/14
E21B 10/46
B24D 3/00
B82Y 30/00

US Classification:

51295, 51307, 51309, 51298, 977734

Abstract:

Coated particles comprise a core particle comprising a superhard material and having an average diameter of between 1 μm and 500 μm. A coating material is adhered to and covers at least a portion of an outer surface of the core particle, the coating material comprising an amine terminated group. A plurality of nanoparticles selected from the group consisting of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element is adhered to the coating material.

US Patent:

20130149447, Jun 13, 2013

Filed:

Dec 9, 2011

Appl. No.:

13/316094

Inventors:

Oleg A. Mazyar - Houston TX, US
Soma Chakraborty - Houston TX, US
Oleksandr Kuznetsov - Houston TX, US
Anthony A. DiGiovanni - Houston TX, US
Gaurav Agrawal - Aurora CO, US
Michael H. Johnson - Katy TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

C23C 16/26
C23C 16/27
B82Y 30/00
B82Y 40/00

US Classification:

4272498, 4272491, 977742, 977734, 977750, 977752

Abstract:

A method of growing carbonaceous particles comprises depositing carbon from a carbon source, onto a particle nucleus, the particle nucleus being a carbon-containing material, an inorganic material, or a combination comprising at least one of the foregoing, and the carbon source comprising a saturated or unsaturated compound of Cor less, the carbonaceous particles having a uniform particle size and particle size distribution. The method is useful for preparing polycrystalline diamond compacts (PDCs) by a high-pressure, high temperature (HPHT) process.

US Patent:

20210277751, Sep 9, 2021

Filed:

Mar 5, 2020

Appl. No.:

16/809858

Inventors:

Zhiyue Xu - Cypress TX, US
Guijun Deng - The Woodlands TX, US
Oleksandr Kuznetsov - Manvel TX, US
Deepak Kumar - Houston TX, US

Assignee:

Baker Hughes Oilfield Operations LLC - Houston TX

International Classification:

E21B 43/10
E21B 17/08

Abstract:

Downhole hanger systems and methods for hanging a first structure from a second structure in downhole environments are described. The systems include a first structure and a second structure, with the first structure disposed within the second structure. A composite joint is arranged on an outer surface of the first structure. The composite joint is formed of a material configured to be fused to both the first structure and the second structure and form a hanger joint having a shear strength of at least 2 ksi when the material is fused to the outer surface of the first structure and an inner surface of the second structure.

US Patent:

20200406217, Dec 31, 2020

Filed:

Jul 6, 2020

Appl. No.:

16/921386

Inventors:

- Houston TX, US
Devesh K. Agrawal - Houston TX, US
Oleksandr V. Kuznetsov - Manvel TX, US
Oleg A. Mazyar - Katy TX, US
Valery N. Khabashesku - Houston TX, US
Qusai Darugar - Houston TX, US

International Classification:

B01J 13/00
C09K 8/57
C09K 8/06
C09K 8/70
C09K 8/66
C09D 17/00
E21B 21/00
E21B 43/16
E21B 43/26
C09K 8/58

Abstract:

A composition of matter includes a liquid and nanoparticles suspended in the liquid. The nanoparticles each include silica, alumina, and an organosilicon functional group having a molecular weight of at least 200. A method includes functionalizing a surface of nanoparticles with an organosilicon functional group and dispersing the nanoparticles in a liquid to form a suspension. The functional group has a molecular weight of at least 200. The nanoparticles each include silica and alumina at a surface thereof.

US Patent:

20200058841, Feb 20, 2020

Filed:

Oct 16, 2019

Appl. No.:

16/654831

Inventors:

- Houston TX, US
Oleksandr V. Kuznetsov - Manvel TX, US
Valery N. Khabashesku - Houston TX, US

International Classification:

H01L 35/26
H01L 51/00
H01L 35/30
H01L 35/34
C08K 3/04
C08K 9/02
H01L 35/24

Abstract:

A thermoelectric material includes a polymer matrix and a plurality of partially coated particles dispersed within the polymer matrix. Each particle of the plurality has a discontinuous coating of metal on a carbon-based material. A method includes dispersing functionalized particles comprising a carbon-based material in a solvent; providing a metal salt in the solvent; and forming a plurality of distinct metal volumes on a surface of the functionalized particles to form partially coated particles. The distinct metal volumes are thermally insulated from other volumes of the plurality. A composition of matter includes a discontinuous coating of metal on a surface of a carbon-based material. The carbon-based material is selected from the group consisting of graphene oxide and functionalized carbon nanotubes.

US Patent:

20190299184, Oct 3, 2019

Filed:

Mar 29, 2018

Appl. No.:

15/940459

Inventors:

- Houston TX, US
Devesh K. Agrawal - Houston TX, US
Oleksandr V. Kuznetsov - Manvel TX, US
Oleg A. Mazyar - Katy TX, US
Valery N. Khabashesku - Houston TX, US
Qusai Darugar - Houston TX, US

International Classification:

B01J 13/00
C09K 8/58
C09K 8/57
C09K 8/06
C09K 8/70
C09K 8/66
C09D 17/00
E21B 21/00
E21B 43/16
E21B 43/26

Abstract:

A composition of matter includes a liquid and nanoparticles suspended in the liquid. The nanoparticles each include silica, alumina, and an organosilicon functional group having a molecular weight of at least 200. A method includes functionalizing a surface of nanoparticles with an organosilicon functional group and dispersing the nanoparticles in a liquid to form a suspension. The functional group has a molecular weight of at least 200. The nanoparticles each include silica and alumina at a surface thereof.

US Patent:

20190284466, Sep 19, 2019

Filed:

Mar 15, 2019

Appl. No.:

16/354510

Inventors:

Lirio Quintero - Houston TX, US
Henry Nguyen - Rosenberg TX, US
Oleksandr V. Kuznetsov - Manvel TX, US

Assignee:

Baker Hughes, a GE company, LLC - Houston TX

International Classification:

C09K 8/584
E21B 49/08
C09K 8/84

Abstract:

A method of providing an optimal surfactant blend to improve waterflood efficiency comprises selecting candidate surfactant blends based on one or more of the following: a reservoir condition; information of a crude oil; information of an injection fluid; or information of a formation fluid, each candidate surfactant blends comprising at least two surfactants, one surfactant having a higher relative affinity for the crude oil than for the injection fluid and at least one surfactant having a higher affinity for the injection fluid than for the crude oil; evaluating phase behavior of the candidate surfactant blends to select surfactant blends that form a Winsor III system with the crude oil and the injection fluid at a reservoir temperature; and evaluating the selected surfactant blends in a porous media to select an optimal surfactant blend which achieves at least an additional 10% crude oil recovery after waterflood.