国家/地区 欧洲专利局（EPO）（4）
IPC部 C（4）
IPC大类 E21（4） C09（3）
IPC小类 E21B（4） C09K（3）
IPC C09K008/03（2）
发明人
公开年 2012（2）
申请年 2011（2） 
专利权人 BAKER HUGHES.（2）

Cavity power section used for mud motor, comprises rotor and stator comprising metal outer tubular and graphene-enhanced elastomeric stator inner liner in which elastomeric material of liner comprises graphene particles and rubber.

SICILIAN J A, SICILIAN Y A

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

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

Stabilizing shales while drilling wellbore into earthen formation, comprises circulating wellbore fluid into wellbore while drilling through shales, where wellbore fluid comprises graphene-based material.

YOUNG S, FRIEDHEIM J, PATEL A D, TOUR J, KOSYNKIN D, PATEL A, TOUR J M, KOSYNKIN D V, DMITRY K, PATEL ARVIND D