Development of non-marking tubular holding equipment

Abstract

The article gives the recommendations of a technical solution for preventing the destruction of external surfaces of drill and
casing pipes by wedge grippers in the process of performing descending-lifting operations. Also, a constructive solution to
clamping the surface of the pipes during screwing or unscrewing of thread connections is proposed. The research of proposed
technical solutions of grippers using computer models has been carried out. The main parameters of the design elements of the
proposed wedge gripper and clamp are established, which can provide the technological process without destroying the outer
surfaces of the pipes of the oil assortment.