How does a Jackup System differ from other Riser Systems?

Unlike the riser systems used on floating rigs (e.g. semi-submersibles or drillships), which are designed for deeper waters, jackup risers operate in shallow water (up to around 400 feet, or 120 meters). The legs of the jackup rig reach the seabed, providing a fixed point of support and reducing the range of movement, which allows for a simpler riser.