Small Bore Hydraulic & Control Line Welding
We custom fabricate subsea small bore hydraulic & control line tubing for umbilical, manifolds and wellheads for clients across the Oil & Gas industry in Australia and internationally.
Weld Procedures and Documentation
With our state of the art equipment our highly experienced team of fabricators & welders bend, fabricate cut, face, prepare and weld & install SBT (small bore tubing) pipework to the highest standards. We document the quality of our work in detailed Manufacturers Data Books and Reports.
Our documentation pacakges & Standard Operating Procedures provides assurance of our quality workmanship.
We stringently follow our process and application of weld procedures and we work to Australian standards including ASME B31.3, ASME IX and our finished product cleanliness exceeds NAS Class 6.
Our weld procedures and processes ensure we get the same high quality outcomes on every product.
Read more about our Documentation or Weld Procedures.
Products & Services
We commonly manufacture umbilical and subsea products with Super Duplex UNS-S32750, Inconel 625 UNS-NO6625 & Stainless Steel UNS-S31603. With our Orbital Welding equipment we have the capability to work with any highly alloyed material.
We manufacture & install SBT Hydraulic, Control & Chemical Injection Lines for the following Subsea infrastructure;
- Gas Production Manifolds
- Drill Centre Manifolds
- Control Systems for Subsea Equipment
- Control Tubing on Jumper Spools / Leads
- Wellhead Equipment
- Umbilical Covers and Clamping Systems
Specifications and scope
We work with hydraulic tubing with a diameter range of 6mm – 25mm and thickness range of 0.6mm – 3.9mm. Our Orbital Welding equipment ensures consistent, repeatable, autogenous welds are done to perfect precision, every time.
No job is too big or too small for Diverse Welding Services. Whether your job requires 2 welds or 1,500 welds in a confined skid footprint, a day’s work or 9 months fabrication, we will meet your needs and we have never missed a target.
We work collaboratively with our clients on-site or from our workshop, and we can design, fabricate, install and maintain all umbilical and subsea products.
Contact Diverse Welding Services to discuss your subsea or umbilical welding requirements.
Below is an example of a skid we worked with Civmec, where we fabricated and installed all of the stainless steel small bore tubing.
Click here to view deployment of the Coniston subsea manifold deployments which DWS completed the small bore control, hydraulic & chemical injections lines courtesy of Apache Energy