Petrobras Installs First ROCS Smart Completion in Brazil

Petrobras has brought a new way of controlling downhole completions into Brazilian deepwater operations, working with Optime, a Halliburton service, to deploy the Remote Operated Control System, known as ROCS, on a deepwater well off Brazil.

The assignment centered on a subsea smart completion, an architecture that adds downhole monitoring and control capability to a producing well, and the campaign marks the first time the ROCS platform has been deployed in the country.

The defining feature of the system is what it leaves out, because the traditional control umbilicals that completion operations conventionally depend on are eliminated altogether.

Removing those umbilical lines reduces the volume of equipment that must be fabricated, transported and handled offshore, and it streamlines execution aboard the vessel during the completion itself.

Halliburton and Petrobras carried the project through jointly, from early planning through system integration and testing and into offshore execution, an approach the companies used to qualify the new control method for field use.

With the first installation now complete, Halliburton positions the Brazilian campaign as the foundation for additional ROCS applications across other regions and other operators worldwide.

For engineers and procurement teams, an umbilical-free control system changes the shape of a completion package well beyond the control line itself.

Umbilical elimination removes steel tube work, splice assemblies and the reels and handling gear that travel with them, which trims vessel deck space and shortens the critical path of a completion spread, and anyone who has waited on a late umbilical delivery knows how much schedule risk sits in that single line item.

Subsea smart completions also concentrate demand on the flow-control end of the string, since downhole safety valves, interval control valves, positioners and sensing electronics must communicate with surface through whatever medium replaces the umbilical.

If ROCS proves out across further installations, specification sheets for future Brazilian tenders are likely to carry new interface requirements, and vendors of downhole valves and control modules will need to demonstrate compatibility with remotely operated architectures rather than legacy hydraulic line supply alone.

For the wider supply chain, the message from this first deployment is that Petrobras is willing to qualify novel completion technology inside its deepwater portfolio, which historically signals further pilots once the first system holds reference status.

Equipment makers serving the Brazilian market should watch how the qualification documentation from this campaign is structured, because those requirements tend to become the template for the next round of smart completion procurements.