Casing centralizer and setting method

The invention belongs to the technical field of petroleum drilling, and particularly relates to a casing centralizer and a casing centralizer setting method. The casing centralizer comprises a centralizing piece arranged on the outer side of a casing, the centralizing piece comprises a main body made of glass fiber reinforced unsaturated polyester, carbon fibers are laid on the outer portion of the main body, and the carbon fibers are bonded with the main body through epoxy resin. According to the centralizing piece, the glass fiber reinforced unsaturated polyester material serves as a main body, carbon fibers are bonded to the surface through epoxy resin, the centralizing piece is integrally bonded to the surface of the sleeve after being machined and formed, stability is good, and friction resistance is small. In addition, the centralizing pieces are arranged on the surface of the casing in a spiral and distributed mode, when the centralizer is installed on a plurality of casings, it is effectively guarante