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Subsea products and equipment manufacturer Ennsub has successfully completed the design, manufacture, testing and installation of sealing systems for the Wheatstone Liquefied Natural Gas (LNG) platform off the coast of Australia.

The company was approached to design two different systems to provide an external and internal sealing system for 64-off 8” NS ballasting pipes located at each corner of the platform.

According to the company, Ennsub was responsible for the design and supply of all equipment, including downline recovery winches, remote disconnect heads and isolation plugs. Following the test programme, four Ennsub engineers were mobilised to Australia to perform the installation of the 128-off bespoke sealing systems.

The solution presented by Ennsub replaced the alternative grouting solution which was being considered by the end user and the success of the operation exceeded all parties’ planned timescales with Ennsub’s engineers successfully completing the installation in half the time allocated.

Scott Macknocher, managing director of Ennsub, said: “This was a great opportunity to demonstrate our design, innovation and supply capability on such a prestigious project. Our experienced design team gained a real understanding of the industry and project application.

“We are very pleased with the success of the operation and performance of both the equipment and our experienced offshore technicians. The solution significantly reduced the planned installation time and had major cost saving benefits for the end user. This project is an excellent example of our capability to deliver bespoke solutions on similar projects.”