SCRUBBER INSTALLATION WITHOUT DRY DOCKINGBy Uwe Aschemeier and Kevin Peters. The year 2020, and with it the Sulphur regulation for the use of heavy Sulphur fuel oil, is approaching fast. Starting January 2020, it will be illegal to run a ship using fuel containing more than 0.5% Sulphur without the operation of a scrubber, an exhaust cleaning gas system. 
Over the past few months of 2019, Subsea Global Solutions (SGS) has performed a number of high capacity underwater repairs across the globe. A great number of these repairs have focused on seal replacement.
Subsea Global Solutions was recently contacted to provide a solution for a vessel stuck in a very difficult position. A deep-sea bulk carrier fully loaded with goods had become immobilized due to a failure of the aft shaft bearing. In the past not much could be done to help a vessel in this situation. With no way to transit on its own power and loaded with a perishable cargo, an economical solution needed to be developed quickly.
Over the past few months, Subsea Global Solutions (SGS) has been called on to complete propeller straightening’s and repairs all over the world, including – Canada, Panama, Uruguay, Singapore, and El Salvador. In each case, a team of highly trained SGS Diver / Propeller Technicians attended the vessel, along with our proprietary large or small propeller press (depending on the job scope) and propeller sectional reduction / optimization gear.
As part of the cruise industry’s focus on the environment, a vessel operating in the South Pacific developed a minor problem with both of its shaft seals.
Back in November a fully loaded bulk carrier contacted Subsea Global Solutions (SGS) with a shaft seal issue. Initial reports from the vessel were that they were losing all stern tube oil into the vessel, they were experiencing heavy water ingress through the FWD seal system into the engine room, and the internal seal system clamp ring shifted approximately 70mm inboard. By this report, it was immediately known this was not a typical shaft seal repair.
Earlier this year, Subsea Global Solution’s office in Busan, Korea completed a biofouling cleaning campaign on one of the largest vessels in the world. A floating liquified natural gas (FLNG) vessel – with an LOA of 488m – it was launched in 2013 and took almost four years to complete, whereby the vessel’s hull had expectedly collected a significant amount of fouling. On several occasions prior to the start of this project, SGS Busan was onsite to assess the degree of fouling and to carry out several tests that would determine the best option for removing the fouling. Strict environmental laws had to be taken into consideration, and the antifouling coating used on the hull precluded divers from using a brush cart system. At the end of the cleaning trials, it was determined that the most effective way to clean the hull would be a combination of hand cleaning (!!!) and the use of specialized cavitation based cleaning equipment.
To our valued customers, family and friends in Florida, Our thoughts are with you, your family and neighbors as Hurricane Irma comes barreling down on the Florida Peninsula. We hope that everyone remains safe and secure during this unprecedented weather event.
SGS Halifax received an emergency call recently that a ferry in a remote part of Northeastern Canada was experiencing an oil leak in the port stern tube. Our crew was quickly assembled and dispatched to the vessel to diagnose and repair the cause of the leak.Due to the heavy traffic load at the height of tourist season, the ferry sc
Please check it out at:Uwe Aschemeier: Underwater Welding’s Under-The-Radar Ambassador