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SISTAC Sistemas de Acesso S.A. has evolved into one of Brazil’s foremost providers of offshore engineering services, with a specialized focus on subsea operations. The company’s core service segments are structured around Inspection, Maintenance, and Repair (IMR) operations for offshore oil and gas infrastructure. These services are critical to ensuring the operational integrity, safety, and efficiency of subsea assets such as pipelines, risers, and production systems in the demanding environment of offshore oilfields.
One of SISTAC’s foundational service lines is its diving operations, which originally established the company’s presence in the Brazilian offshore market. Through the use of highly trained commercial divers, the company carries out underwater inspections, minor repairs, and maintenance activities on subsea structures, particularly in shallow to mid-water depths. Complementing this, SISTAC offers rope access services, allowing technicians to safely reach difficult-to-access areas on offshore platforms and floating production units for structural inspections, painting, welding, and mechanical repairs.
Since 2007, SISTAC has strategically expanded its technological capabilities by integrating Remotely Operated Vehicle (ROV) services into its portfolio. ROV support is essential for deeper and more complex subsea operations where diving is not feasible. The company operates a fleet of ROVs equipped with advanced imaging, sonar, and manipulator tools for subsea inspection, survey, intervention, and pipeline integrity verification tasks. This has allowed SISTAC to provide cost-effective and high-precision solutions for major clients like Petrobras and Chevron, particularly in Brazil’s pre-salt fields.
A key development in SISTAC’s offering came in 2024, with the launch of a robotic maintenance solutions division through a strategic partnership with Norwegian firm Oceantech. This segment focuses on deploying robotic systems for cleaning, inspection, and minor repairs on offshore structures, aimed at reducing human exposure to risk, improving operational uptime, and minimizing environmental impact. The collaboration leverages Oceantech’s expertise in subsea robotics and artificial intelligence, positioning SISTAC as an early adopter of advanced offshore automation in Brazil.
Additionally, SISTAC operates a dedicated fleet of offshore support vessels tailored for IMR campaigns, ROV deployment, and diving operations. These vessels are equipped with dynamic positioning systems, modular workstations, and integrated control rooms, ensuring operational flexibility and efficiency in demanding offshore conditions.
Together, these product and service segments enable SISTAC to deliver comprehensive, end-to-end subsea engineering solutions from routine inspection and maintenance to complex repair and robotic interventions supporting the safety, reliability, and sustainability of Brazil’s offshore oil and gas infrastructure.
The SISTAC Esperança is an advanced offshore vessel setting new benchmarks in the maritime industry, designed to tackle the toughest challenges of subsea operations. Supporting critical activities like ROV deployment and subsea maintenance, it stands out for integrating cutting-edge technology, operational safety, and efficiency. Notably, the vessel is equipped to support saturation diving a technique vital for deepwater, extended-duration interventions providing a secure and stable platform for divers working at significant depths in demanding offshore oil and gas environments.
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