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ELFO has recently achieved a significant milestone by delivering subsea asset monitoring jumpers to Australia in collaboration with Aker Solutions. This project involved the design, prototype qualification, production, and testing of subsea jumpers, demonstrating our expertise in subsea technology and its ability to meet the stringent requirements of a major industry player.
Key Milestones
Scope of Work
ELFO developed, qualified and delivered two types of subsea jumpers for performance monitoring on subsea assets:
Subsea Jumper with Two Accelerometer Sensors
- A 1-2 jumper equipped with a 12W wet mate connector, which terminates in two accelerometer sensors configurable from 1 to 3 axes, allowing for flexible and precise monitoring.
- The jumper design was based on standard components from ELFO’s Jumper System, while the accelerometer sensor had to be designed from scratch.
- Six off “Subsea Jumper with Two Accelerometer Sensors” were delivered to Aker.
Subsea Jumper Terminated to a Motor Flange
- A 3-1 jumper featuring three 12W wet mate connectors, terminating in a motor flange (API), designed to be bolted onto a subsea asset.
- Like the accelerometer jumper, this jumper was built using ELFO’s standard components, with the motor flange provided by the client but qualified as part of the project.
- Eight off “Subsea Jumper Terminated to a Motor Flange” were delivered to Aker,
Project Management and Execution
“Designing subsea sensors capable of performance monitoring at depths up to 4000 meters, with a lifespan of up to 30 years, presents unique challenges” states ELFO’s project manager, Aron Thorfinnsson. “For such work to be successful an seasoned designer(s) are instrumental and on that part did Oddbjørn Aase play a critical role”.
The motor flange jumper posed its own set of challenges, particularly in identifying a suitable wire that met functional requirements and fit within the jumper hose. Additionally, defining a reliable method for terminating wires to the motor flange was complex. Morten Bjørklund’s experience and precision were invaluable in navigating these obstacles, leading to the successful completion of that part.
Collaborating with Aker Solutions, a leading provider of production systems for subsea oil extraction, was crucial to the project’s success. Despite the challenges of working with a much larger organization, ELFO adhered to Aker’s requirements.
Expertise and Innovation
The project underscored ELFO’s capability in innovative design and expertise in subsea technology. While most of the jumpers components were from ELFO’s Jumper System, specific design aspects around the accelerometer sensor and motor flange required bespoke solutions.
A new subsea accelerometer sensor was designed from scratch and qualified per API 17F. Through tight collaboration between stakeholders, a new sensor was developed and successfully tested within a year. ELFO also resolved unfinished design details around wire terminations and electrical insulation for the motor flange, ensuring the integrity and operability of this crucial component.
Seamless Collaboration and Project Success
The success of this project was the result of strong collaboration between ELFO and Aker Solutions with Chevron as end customer. By aligning efforts and maintaining open communication, the team was able to meet and exceed the technical and logistical challenges presented by the project.
ELFO’s delivery of subsea asset monitoring jumpers to Australia, in partnership with Aker Solutions, marks a significant achievement. Through design, testing, and seamless collaboration, ELFO has demonstrated its ability to deliver innovative solutions for the subsea industry. This project highlights not only ELFO’s technical expertise but also our capacity to collaborate effectively with industry leaders to achieve success.
In recognition of ELFO’s performance, Aker Solutions awarded the company a satisfaction score of 98%, reflecting the high-quality work and strong collaboration that defined this project.
