Presents the self-fabrication and replacing techniques of Shell WHB flexible tube plate and inlet flare tube of residual oil gasification plant, and points out technical key points and difficult points.

Study on flexible pipe of JYXR series used in ship;

Calculation of strain and stress for flexible pipesunder axisymmetric load;

In this paper, we have made a numerical simulation by the calculation program and researched the effect to the vibration isolation of the raft caused by flexible pipe.

Strain energy of coiled tubing during reeling;

Dynamic parameters identification of the flexible rubber pipes;

The paper analyzes and replenishes the new method of casing deflection calculation in directional well ad-vanced by some foreign scholar advanced,which think of casing string as a continuous beam in the directional wellbore and use the fixed-ends boundary condition to calculate casing deflection for a span of casing be-tween two centralizer for 1D,2D and 3D wellbore.