Light Well Intervention

Plan better and achieve your downhole objectives faster with reliable and efficient access to live, deepwater wells via our light well intervention (LWI) solutions.

The interchangeable riserless intervention system (IRIS) and the Blue Ocean riserless intervention system (BORIS) are designed to perform reliably in depths to 10,000 ft (3,000 m) and pressures to 10,000 psi.

Proven Well Access Capabilities

We have a successful track record running the IRIS system in a variety of common and atypical downhole scenarios. The system is integrated with a custom-fit subsea intervention lubricator (SIL) and is run using a deepwater umbilical with a pulling capacity of up to 20 tons.

Our fully integrated LWI systems offer the industry’s broadest functionality, resulting from extensive field experience and post-deployment analysis. We have achieved multiple industry firsts in riserless LWI.

  • The world’s deepest water depth for riserless intervention—8,200 ft (2,500 m)—with both slickline and e-line
  • The industry’s first riserless, live in-flow testing
  • The first use of a 5/16-in e-line

Solving Your Subsea Challenges

Our systems have been deployed to support various intervention activities.
  • Running slickline, e-line, and braided wireline
  • Milling, stroking, and tractor running
  • Running, setting, and pulling tubing and trees
  • Setting and removal of plugs
  • Pumping cement plugs
  • Actuating sliding sleeves
  • Plug and abandonment
  • Logging while flowing
  • Perforating
  • Fishing and bailing
Development of coiled tubing applications is underway to support
your pill spotting and targeted acid treatment objectives.

Hydraulic and Mechanical Intervention

Our hydraulic LWI system enables you to achieve critical well stimulation objectives, effectively restoring or enhancing production from subsea wells. We use hydraulic actuation to access live wells and carry out prescribed acidization or other light intervention programs.

During mechanical LWI, proprietary equipment and tool designs enable increased recovery while reducing costs in a wide range of subsea scenarios. We use fit-for-purpose wireline tractors, milling, and logging tools, and gauge rings to perform a wide range of tasks.

  • Subsea well and infrastructure diagnostics
  • Sliding sleeve intervention
  • Remediation on damaged wells
  • Plugging and abandonment
  • Workovers

Each hydraulic or mechanical LWI operation is planned, deployed, and overseen by our experienced subsea engineers and technicians, downhole wireline engineers, and project managers. Our teams provide full-time site supervision and engage in close customer collaboration while adhering to rigorous QA/QC standards.

Case Studies

Learn how we safely and cost-effectively solve real-world challenges.
Contact Us | Light Well Intervention

Company page Since our founding in the early 1960s, Oceaneering has expanded and grown globally to service several industries such as the offshore energy industry, defense, entertainment, material handling, aerospace, science, and renewable energy industries. In 1964, Mike Hughes and Johnny Johnson formed a Gulf of Mexico diving company called World Wide Divers. The company grew in response to increasing demand for their services and in 1969 merged with two other diving companies to form Oceaneering International, Inc. To solve the toughest challenges, we do things differently, creatively, and smarter. As your trusted partner, our unmatched experience and truly innovative portfolio of technologies and solutions give us the flexibility to adapt and evolve, regardless of market conditions. Our mission is to solve the unsolvable. We thrive by creating industry-changing technically creative solutions for the most complex operational challenges under water, on land, and in space. Our five core values establish a common culture and demonstrate what is most important for us as a company. Since the beginning, the company has transformed from a small regional diving company into a global provider of engineered products and services. Today, we develop products and services for use throughout the lifecycle of an offshore oilfield, from drilling to decommissioning. We operate the world's premier fleet of work class ROVs. Additionally, we are a leader in offshore oilfield maintenance services, umbilicals, subsea hardware, and tooling. We also serve the aerospace, defense, and theme park industries. Underpinning everything we do, safety is not only the foundation of our core values, but it is vital to our unmatched performance record and company culture. The industries we serve are as diverse as they are complex. Whether we are engineering deepwater umbilicals or developing robotics for aerospace applications, the safety and health of our employees, vendors, and customers is an integral part of our day-to-day business. If we are working, then our responsibility is to be working safely. Since our inception in 1964, we have placed a high value on employee safety—from diving services and subsea inspection to vessel-based installation operations. We have and will continue to evolve not only our health, safety, and environmental (HSE) processes, but those of the industries in which we work. Although we have been fatality-free since 1999, our HSE journey goes beyond statistics. As our portfolio of services has grown, we have continued to prioritize and advance our approach to HSE.