国家/地区 美国（8）
IPC部 C（7） E（5） B（3）
H（3）
IPC大类 C09（6） E21（5） H01（3）
B82（2）
IPC小类 C09K（6） E21B（5） B82Y（2）
IPC C09K008/03（3） C09K008/32（3） C09K008/06（2）
C09K008/58（2） C09K008/82（2） E21B000/00（2）
发明人 AGRAWAL G（2） CHAKRABORTY S（2） MAZYAR O A（2）
MONTEIRO O（2） MONTEIRO O R（2） QUINTERO L（2）
SADANA A K（2）
公开年 2012（3） 2013（2）
申请年 2012（3）  2011（2） 
专利权人 BAKER HUGHES INC（8）

Photodetector for downhole tool e.g. sampling tool for performing downhole operation, has graphene tunneling photodetector that is located within housing which is configured along carrier, and configured to perform downhole operation.

DIFOGGIO R

Introducing heat to subterranean location, comprises heating thermal particles in heat transfer fluid of carrier fluid e.g. brine and thermal particles comprising graphene, introducing fluid into subterranean location and transferring heat.

SADANA A K, AGRAWAL G, MAZYAR O A

Swellable article used e.g. for packer, isolation, actuation and sealing devices that react automatically upon exposure to particular downhole fluids such as oil and water, comprises matrix material and exfoliatable graphene-based material.

MAZYAR O A, GOODSON J E, GOODSON YA E

Fluid composition used in drilling comprises non-aqueous base fluid e.g. brine-in-oil emulsion and water-in-oil emulsion, and nanoparticles such as graphene, nanorods, nano-titanium oxide platelets, and nano-oxides.

MONTEIRO O, ELLIS D R, MONTEIRO O R, ELLIS D

Preparing functionalized graphene, comprises treating graphene with an alkali metal e.g. potassium in the presence of a coordinating solvent comprising an ether (e.g. dioxane) and/or an amine, and adding a functionalizing compound.

SADANA A K

Fluid, useful e.g. in drilling, completion, production and remediation of subterranean oil and gas wells, comprises base fluid comprising non-aqueous fluid or aqueous fluid, and nanoparticles comprising e.g. graphene nanoparticles.

MONTEIRO O R, BREGE J J, QUINTERO L, CHAKROBORTY S, LEONARD A D, CHRISTIAN C F, CHAKRABORTY S

Fluid useful for improving a property of a fluid e.g. flow assurance properties of the fluid comprises base fluid selected from oil-based fluid or water-based fluid; and graphene nanoparticles.

MONTEIRO O, QUINTERO L

Coated diamond particle used in fluid suspensions, polymers, elastomers, polycrystalline compact and earth-boring tools comprises a solid core comprising diamond; and graphene layer over a portion of the solid core.

CHAKRABORTY S, DIGIOVANNI A A, AGRAWAL G, SCOTT D E, MATHUR V, DIGIOVANNI A, SCOTT D, ANTHONY A D, DANNY E S, DIGIOVANNY A A, AGRAVAL G