Page 59: of Offshore Engineer Magazine (Mar/Apr 2025)

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Figure 5. Example

Integrated Umbilical System grates choke, kill, and boost line conduits with the marine between the surface control unit and the subsea Interface riser, ensuring seamless alignment, pressure integrity, and connection point of the IRJ. To verify system integrity, compatibility with the deepwater well control systems comprehensive testing is conducted to confrm the data and signal transmission and power supply, ensuring proper communication with the surface control system.

Integrated Umbilical System

The electro-hydraulic control system is essential for cen-

The umbilical cable serves as a multi-functional conduit, facilitating the operation of various subsea components by tralized management of the IRJ functioning providing, hy- transmitting hydraulic power, electrical signals, and data draulic, electric power and real-time control of the critical functions of IRJ.

communication between the surface control unit and sub- sea IRJ components. An example is shown in Figure 5.

Advantages of IRJ Technology in

The installation process begins with deploying the umbilical reeler, which ensures controlled spooling and

Deepwater MPD unspooling of the umbilical cable. Once the umbilical is

The implementation of IRJs in MPD operations offers positioned, hydraulic and electrical lines are connected several advantages, as outlined in the paper below.

march/april 2025 OFFSHORE ENGINEER 59