Research and Realization of Butt Welding Device in Field for Coiled Tubing
Aiming at the problem of alignment assembly for coiled tubing in field due to quality defects of butt welding, a device for coiled tubing was designed. This device can ensure alignment assembly quality by four degrees of freedom adjusting and one welding station height adjusting function. The rapid installing of alignment assembly for coiled tubing with the specifications(caliber: 0.75~3.5 in and wall thickness: 0.087~0.25 in) was realized during all position welding. The results show that this device can completely meet the requirement on the quality of alignment assembly for coiled tubing in field.