Oil casing pipes are the lifeline which keep oil wells running. Oil casing pipe are need to bear the complicated force coming from pulling, pressing, curving and twisting under oil well, because of the different geological conditions. Therefore, the high quality of oil casing pipe is very necessary. Once the oil casing pipe is damaged for some reasons, it may lead to reduction of output for oil well, even it becomes useless.
Oil casing pipe is a kind of pipe with large diameter, which immobilizes the wall and pit of oil and gas well. Oil casing is used to insert into the oil pit and immobilized with cement, to prevent the well from stratum and collapse, make sure the circular flow of the drilling mud for drilling.