Chess Subsea Engineering

The subsea production systems, wellheads and drilling consultancy experts

Deepwater Subsea Multiplex BOP System & Marine Drilling Risers

by · Published · Updated

Description

The purpose of the BOP control system is to provide a means to individually actuate components in the BOP stack by providing pressurized hydraulic fluid to the selected stack components. Chess Subsea research team has come up with a technical field manual on Multiplex BOP Control System & Marine Risers. These is presented in 5 key sections as presented below:

    Section A – Subsea BOP Control System
    Section B – Marine Riser System
    Section C – Testing of BOP System
    Section D – Recommended Pressure Test Practices, Floating Rigs
    with Subsea BOP stacks.
    Section E – Job Safety Analysis for BOP Maintenance and Inspection.

Research Outcome

  • Plan routine operations, including routine inspections of all well control equipment and compensating systems on floating rigs.
  • Have a greater understanding of the systems in use onboard a floating rig and be able to perform troubleshooting and fault correction of the BOP control system on conventional hydraulic and multiplex control systems as well as on the riser tensioner systems, direct acting tensioner systems, drill string or crown-mounted compensator systems.
  • Plan and carry out maintenance, including routine maintenance and daily checks, of all well control equipment
  • Plan and carry out repairs, including changing of rams and overhauling ram bonnets, changing the annular element, installing and testing new hydraulic seals, changing/repairing choke and kill valves installed on the BOP, changing/repairing gate valves and chokes on choke and kill manifold and changing/testing slip joint packers.
  • Understand the operations and maintenance of all types of hydraulic connectors used in today’s drilling industry.
  • Understand the operations and maintenance of standard and modern marine riser systems.
  • Perform the following calculations:
    1. accumulator systems calculations, both surface and subsea.
    2. riser tensioner calculations.
    3. compressibility calculations for pressure testing.
    4. design and testing of choke and kill manifolds.
    5. poorboy degasser calculations.
    6. rigid conduit line volumes circulation calculation.
    7. surface and subsea BOP pressure testing and design.

 

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