Development and Application of the Amphibious Modulized Skid-mounted CTU

摘要

This paper mainly introduces the structural composition, operating principle, major technical parameters, design features and technical features of the amphibious modulized skid-mounted coiled tubing unit (CTU) . It also describes the experimental condition of this unit and its application in Jidong Oilfield. The unit has been successfully operated in Jidong Oilfield 30 well-times. The maximum lifting or snubbing depth is 2,300 m; the velocity is 15 m/min; the manifold pressure is 20 MPa; the maximum deviation angle is 35.8°. It has successfully realized the modularization of the CTU. The whole system uses an explosion-proof design, which achieves the second class of explosion-proof grade in the oilfield operation area, and gets the explosion-proof certificate and certification of the China Classification Society. It also obtains the marine operation qualification. This paper has a certain referential significance for the CTU' s design and research.