With the exploration and development of oil and gas expanded to deepwater area, many new
floating structures are developed to reduce the cost. Steel catenary Riser (SCR) is a flexible steel
pipe that conducts well fluids from the subsea wellhead to the production floating vessel. SCR
has the advantages of low manufacturing cost, resistance of high temperature and high
pressure, good adaptability of upper floating body’s motion, etc, and is widely used in the
development of deepwater oil and gas fields. Because of the complicated marine environment,
SCR theory research involves fluid dynamics, nonlinear mechanics, soil mechanics and other
disciplines. This chapter presents the numerical calculation for soil-riser interaction, vortexinduced vibration (VIV), fatigue, the coupling of floating vessel and riser, riser installation, etc,
and provides a theoretical basis of SCR design.