Installation and Workover Control Systems (IWOCS)

Disciplines: Management

Course Description

This 1-day course provides participants with a background review of subsea production control systems and specific knowledge of Intervention Work-Over Control Systems (IWOCS) as they interact with subsea productions systems. This is followed by an interactive class discussion of operations scenarios, illustrating IWOCS usage and some situational challenges encountered during subsea hardware installation and well interventions. 

Topics discussed will be:

  • Review of subsea production controls
  • IWOCS architecture and operating philosophy
  • Deployment methodologies
  • Safety and Well Control Protocols
  • Operational requirements for New Installations
  • Operational requirements for Well Interventions
  • Commissioning and Troubleshooting
  • Case history scenarios

Learning Level

Intermediate to Advanced

Course Length

5 hours (with 1 hour break for lunch)

Why Attend

This course will give you a better understanding of how IWOCS differs from other control systems, how its tailored to hardware installation and well intervention work, and better understand the operating philosophies behind well control and well integrity.

Who Attends

Trainees, offshore personnel, well site leaders, and completions/drilling engineers dealing with Subsea Intervention Operations

Special Requirements

  • Laptop or Smart phone for Downloading the app for Poll Everywhere
  • Participants should have some exposure to topic. Moderate experience or exposure to the topic will be a plus for the case study scenario session.



Cancellation Policy

All cancellations must be received no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Refunds will not be given due to no show situations.

Training sessions attached to SPE conferences and workshops follow the cancellation policies stated on the event information page. Please check that page for specific cancellation information.

SPE reserves the right to cancel or re-schedule courses at will. Notification of changes will be made as quickly as possible; please keep this in mind when arranging travel, as SPE is not responsible for any fees charged for cancelling or changing travel arrangements.

We reserve the right to substitute course instructors as necessary.


Brian Skeels has 40 years of experience in the offshore petroleum industry, in hardware design, offshore operations planning and implementation, API standards work, and teaching.

He received his M.S. in Ocean Engineering from the University of Rhode Island and a BSME from Cornell University, holds a P.E license in the State of Texas, and elected to ASME Fellow in 2010. Skeels received the OTC Distinguished Achievement award and has served and chaired several SPE Forums on Subsea Production Systems in Europe, Brazil, and the U.S from 1992-2010. Currently he is a Technology Fellow at TechnipFMC serving in an advisory and special projects role in new technologies including: HPHT, ROV applications, subsea intervention systems, and automated systems.

In his career his project work established several water depth records and industry performance firsts globally in subsea completions and interventions. He continues to serve on API’s subcommittee 17 leadership team, serving as a chair to API Standard 17G, Specification 17D, and 17TR8; and task group member and contributing author to several other SC 17 standards. Skeels also is an adjunct professor at the University of Houston teaching Subsea Systems engineering courses. He holds several patents and has authored several dozen technical papers in various areas of offshore and subsea engineering.