▎ 摘 要
NOVELTY - Graphene drill pipe joint prepared by laser cladding comprises wear belt (1) and drill pipe joint (2), where the wear belt is an annular ring made of graphite composite powder, and combined with drill pipe joint through laser cladding process. USE - Graphene drill pipe joint. ADVANTAGE - The graphene drill pipe joint has downhole casing-abrasion effect, and prolongs the service life. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of graphene drill pipe joint. Wear belt (1) Drill pipe joint (2)