Patent ID: 9605526
Date: 2017-03-28
CPC Classifications: E21B

Claim:
1. A method of reducing friction of a drilling equipment positionable in a wellbore, said method comprising: providing an outer tubular member having a bore with an inner surface; applying a first lubricant layer to at least a portion of the inner surface of the outer tubular member; positioning the outer tubular member in at least a portion of the wellbore; providing a drilling assembly including an inner member having an outer surface, said inner member having a central longitudinal axis aligned with a central longitudinal axis of the outer member; applying a second lubricant layer to at least a portion of the outer surface of the inner member; inserting the inner member into the bore of the outer tubular member; providing a drilling fluid through the bore of the drilling assembly; rotating the inner member relative to the outer member; measuring an indicator of at least one of mechanical wear and friction between the outer member and the inner member; determining that the measured indicator exceeds a predetermined threshold level; and triggering a subsequent operation in response to determining that the measured indicator exceeds the predetermined threshold level, wherein the subsequent operation comprises increasing a concentration of graphene suspended in the drilling fluid.