Umbilical Systems
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An umbilical is a bundled arrangement of tubing, piping, and/or electrical conductors in an armored sheath that is installed from the host facility to the subsea production system equipment. An umbilical is used to transmit the control fluid and/or electrical current necessary to control the functions of the subsea production and safety equipment (tree, valves, manifold, etc.). Dedicated tubes in an umbilical are used to monitor pressures and inject fluids (chemicals such as methanol) from the host facility to critical areas within the subsea production equipment. Electrical conductors transmit power to operate subsea electronic devices. Umbilical dimensions typically range up to 10 in. (25.4 cm) in diameter. The umbilical will include multiple tubings normally ranging in size up to 2 in. (5.08 cm); the number of tubes is dependent on the complexity of the production system. The length of an umbilical is defined by the spacing of the subsea components and the distance these components are located from the host facility.
References
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