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Annulus Access Hose Jumper

Working subsea in a high-pressure environment poses a unique set of challenges to engineers.

Coping with problems at a depth of hundreds of metres and under extreme pressure means that more often than not, an off-the-shelf solution just won’t do.

subsea engineering

Here at Rotaflow we specialise in bespoke solutions to subsea engineering problems.  Our recent project with Total Marine Technology, in Bass Strait, Australia is a recent example of where our expertise, teamwork and ability to solve problems led to a perfect solution to an in the field issue.

Total Marine Technology wanted to cut out a section of pipe connected to an oil well. The brief supplied to us was to maintain the end sections/connectors currently in operation and input a swivel section to allow the structure to move more freely.

We designed and manufactured an annulus access hose jumper for use in a Riserless Light Well Intervention by Sapura Energy.

How did we solve the problem? 

TMT contacted us via our website, rotaflow.com. Having filled out an enquiry form, they gave us the necessary information about their problem and requirements.

Once we confirmed a few technical issues we quoted based on a drawn proposed solution. They accepted the quote and work started on a custom-built swivel rated at 345 bar 5000psi. The equipment was provided complete with design review and survey and had satisfied NACE requirements.

What was the end result? 

The new swivel was designed and built in our Whaley Bridge headquarters.

Having satisfied all quality control checks it was sent to site (Bass Strait, Australia) and delivered into place using an ROV at a depth of 260m, where it successfully operates.

Working with Rotaflow

At Rotaflow we offer an end-to-end solution. We design and manufacture in house, so we own the entire process from initial contact through to the final product distribution. This allows us to maintain the highest standards from materials to manufacture.

All of our work is built to the client material and design specifications.

We have a global reputation and network, meaning that no matter where on the planet you are based, we can work with you. Previous projects in the USA, Australia, South America, Europe and Asia prove that no matter where you are, Rotaflow can provide your subsea engineering solutions.

If you’d like to work with Rotaflow or have a subsea engineering problem, don’t hesitate to get in touch via Enquiries@Rotaflow.com.

The Rotaflow Team

The Rotaflow Team

ISO 9001:2015 Certified

Rotaflow design and manufacture to design standards including PED, API 6A, API 17D, ASME and DNV OS E101, E201, ABS CDS. We are regularly audited and have attained ISO certification ISO 9001:2015 and PED module H. Certificate ISO 2024-2027 … [Read More]

Swivel Joint Enquiry Sheet

Not sure which range would best suit your requirements? Let us do the hard work, simply fill in an enquiry sheet and we’ll get back to you with the optimum swivel joint for your needs. Please download, … Read More

Rotaflow Recruitment

Rotaflow is always looking for talented staff to join our team. If you have seen a position advertised or you would like to send us your CV to look over please feel free to use the form below. Document formats accepted are doc, docx, zip and pdf with … [Contact and Upload CV]

Rotaflow Contacts

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Timeline and Archive

2024 Rotaflow have been designing and in-house manufacturing Swivels for 40 years!!! 2022 Taken on our first apprentice linked with Macclesfield College: Engineering fitter (level 3) 2021 Along with PED, the new PESR certifications updated and … [Read More]

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