Cihan KALKAN’s Post

Learn how Nereus Subsea helps assess and mitigate risks in underwater ship blanking, ensuring safe and efficient operations. Our latest blog dives into the essential steps for reducing potential hazards during maintenance and repair. Stay informed with expert insights on safeguarding your vessel below the waterline. #blankinh #ship #shipping #marine #commercialdiving #maritime #marineengineering #nereussubsea

● Sailing via offshore service vessel executing inspection and check up for moored oil export platform. ● Inspection covered mechanical, controls and instruments systems. ● Operation and Diving team verify floated objects like Buoy, export hoses and mooring hawser. ● Under sea inspection performed usually via remote operated vehicle ROV, detected facilities conditions and operational conditions. ● Faced really many challenging situations which required high attention/competency. #offshoreoilandgas #crudeoil

Barge operations in the offshore oil and gas sector encompass a wide range of activities and functions. Here are some key aspects: 1. Transportation: Barges are used to transport personnel, equipment, supplies, and materials to and from offshore installations such as drilling rigs, production platforms, and construction sites. They can carry heavy machinery, pipes, modules, and other essential components required for offshore operations. 2. Accommodation: Some barges are equipped with living quarters to accommodate personnel working on offshore projects. These accommodation barges provide facilities such as sleeping quarters, dining areas, recreational areas, and office space, allowing workers to stay near their work sites for extended periods. 3. Support for Construction and Installation: Barges serve as platforms for construction and installation activities in offshore oil and gas fields. They provide stable working surfaces for assembling and installing equipment, structures, pipelines, and other infrastructure components. Barges equipped with cranes, winches, and other lifting equipment are particularly useful for these tasks. 4. Diving and ROV Operations: Barges support underwater activities such as diving operations and remotely operated vehicle (ROV) inspections. They provide a stable base for launching and recovering dive teams and ROVs, as well as for storing diving and ROV equipment. 5. Drilling Support: Barges are used to support drilling operations in offshore fields. They may serve as drilling platforms for shallow-water wells or as bases for positioning drilling rigs and equipment in deeper waters. Barges equipped with dynamic positioning systems can maintain position and stability even in challenging offshore environments. 6. Maintenance and Decommissioning: Barges play a role in the maintenance and decommissioning of offshore installations. They provide support for activities such as equipment repairs, maintenance inspections, and well plugging and abandonment operations. Overall, barge operations are essential for the efficient and safe development, production, and maintenance of offshore oil and gas resources. They provide versatile and flexible solutions for transporting personnel and equipment, supporting construction and installation activities, and facilitating various other offshore operations.

Discover the secrets to enhancing your vessel's performance with our latest blog on underwater propeller polishing! Learn how Nereus Subsea's expert techniques can optimize fuel efficiency and maneuverability while extending the life of your propellers. #propeller #propllerpolishing #shippropeller #shiprepair #marineservices #marine #maritime #subseaengineering #marinetechnology #maritimeinnovation

Discover essential insights on underwater ship blanking techniques in our blog post! Learn how Nereus Subsea's innovative methods ensure efficient and safe operations for your vessels. Dive deeper into our expertise and optimize your maritime strategies today. #blanking #shipblanking #maritimeinnovation #shipoperations #aritimeindustry #marine #marineindustry #marineengineering #underwatersolutions #subseaservices #nereussubsea

Hot tapping generally refers to the process of connecting a new pipe to an existing one without interrupting the flow or reducing the internal pressure within the existing pipeline. This technique is particularly challenging when applied underwater due to the complex environment. Underwater hot tapping is typically used for various purposes, including pipeline repair, maintenance or the installation of branch connections. The operation involves several critical steps, such as: • Planning and design, which includes detailed engineering assessments to ensure the integrity of the existing pipeline and the feasibility of the hot tap. • The development and deployment of specialized equipment, designed to withstand the external/internal pressures and particularly conditions found at the seabed. • Operational execution, often involving the use of remotely operated vehicles (ROVs) and divers to perform the work under challenging conditions. One of the main advantages of submarine hot tapping is its ability to allow continuous operation of the pipeline, avoiding the need for shutdowns, which can be extremely costly in terms of lost production and operational efficiency. However, the operation requires meticulous planning and execution to mitigate risks, including the potential for leaks or environmental damage. Advancements in technology and engineering practices have significantly improved the safety and efficiency of submarine hot tapping operations over the years. Innovations in sealing technologies, cutting methods, and monitoring equipment have contributed to making hot tapping a viable option for underwater pipeline interventions. Nonetheless, the complexity and risks associated with working in a underwater environment mean that these operations must be carried out by highly skilled professionals with specialized training and experience. Underwater hot tapping techniques present significant challenges, especially for divers and diving supervisors tasked with executing these operations under demanding conditions. Performing hot tapping in zero visibility conditions adds a layer of complexity. Divers must rely entirely on their training, touch and communication with the surface team to navigate the underwater environment and perform the precise tasks required. Diving supervisors face their own set of challenges in these conditions, as they must meticulously follow the plan and monitor the operation, adapting to the dynamic underwater environment. They are responsible for ensuring the safety of the divers and the success of the operation, requiring a deep understanding of the task plan, the technical aspects of hot tapping and the capabilities of their team. These conditions underscore the critical importance of extensive training, experience, and the use of state-of-the-art technology to mitigate risks and ensure the operation’s success under such demanding circumstances. #hottap #oilandgas #commercialdiving #offshore #tecnosub

Navigating the CSWIP 3.3U Certification, https://lnkd.in/eZWVvSnj CSWIP 3.3U - ROV Inspector is a certification for underwater inspectors, often used in the offshore industry, including for remotely operated vehicles (ROVs). It signifies competency in inspecting and evaluating underwater structures and equipment, including those inspected using ROVs. It’s a valuable qualification for professionals working in marine engineering, offshore construction, and related fields. If you are interested in working as an underwater inspector, particularly with ROVs, then obtaining the CSWIP 3.3U certification could be a great fit for you. It would provide you with the necessary skills and credentials to excel in that field. However, it’s important to consider your career goals and whether this certification aligns with them before pursuing. For more information, please visit our website https://lnkd.in/exZiFexj or enquire at salessupport@twitraining.com TWI #twitraining #CSWIP #underwater #diver #diving #inspection #underwaterinspection #course #topside #ROV #inspector

Had the pleasure today of observing a segment of the annual check assessment for a master operating in Port Hedland. This portion of the assessment focuses on the circuit, evaluating the master’s control and finesse while employing various techniques to operate an Advanced Rotor Tug. It’s a great opportunity to witness the skill and precision required in such a challenging environment. #Tugboat #MarineOperations #Towage #PortHedland #AdvancedRotorTug #MaritimeSkills #MaritimeTraining #MarineSafety #HarborTowage #TugMaster #MaritimeIndustry #VesselOperations #PortOperations #MaritimeExcellence

Diver: Essential Skills for Underwater Maintenance and Inspections Divers play a critical role in maintaining and inspecting underwater infrastructure, from offshore oil rigs to ship hulls and subsea pipelines. Their specialized skills ensure that vital components of maritime operations remain in optimal condition, preventing costly repairs and ensuring the safety of vessels and facilities. My experience in the maritime industry has shown me the importance of divers in maintaining the structural integrity and functionality of underwater assets. Underwater maintenance and inspections involve a wide range of tasks, including welding, cleaning, and inspecting submerged structures for damage or wear. Divers often work in challenging conditions, navigating limited visibility, strong currents, and confined spaces to carry out essential work. This requires not only technical expertise but also a strong understanding of safety protocols and environmental considerations. A significant trend in the diving industry is the increasing use of remotely operated vehicles (ROVs) to assist divers in their tasks. ROVs can reach extreme depths and provide real-time visual data, allowing divers to assess situations before descending. However, human divers remain indispensable for many hands-on tasks that require precision and problem-solving skills in real time. Additionally, advanced technologies, such as underwater cameras and sonar systems, are improving the accuracy and efficiency of underwater inspections. Certification and training are essential for professional divers involved in underwater maintenance. Divers must complete rigorous training programs that include both theoretical and practical components, covering areas such as underwater welding, cutting, inspection techniques, and safety procedures. Certification from recognized bodies, such as the Association of Diving Contractors International (ADCI) or the International Marine Contractors Association (IMCA), is often required for those working in the commercial diving sector. These certifications ensure that divers are equipped with the necessary skills and knowledge to perform their jobs safely and effectively. Reflecting on my experiences, divers are indispensable to the maritime industry, particularly in maintaining the safety and longevity of underwater infrastructure. Their ability to work in demanding environments while ensuring the proper maintenance of critical assets makes them invaluable to offshore operations, shipyards, and marine construction projects. For those interested in a dynamic and challenging career, becoming a commercial diver offers a unique opportunity to combine technical skills with adventure. Feel free to reach out for further discussions on this topic or to explore potential collaborations. Together, we can navigate towards a future of innovation and safety in underwater operations. #Diver #Underwater_Maintenance_and_Inspections #Saleh_Bayagoob

Did you know that in the early 20th century it would have been considered suicide for a diver to shoot an electric arc into the water? Though professional diving was already an established industry and had been for hundreds of years, underwater welding was not. In the early 20th century, underwater welding was a novel concept, and its feasibility was met with skepticism. However, with the outbreak of World War II, the need for quick and efficient vessel repairs became a pressing concern. Soviet engineer Konstantin Khrenov addressed this challenge by inventing a method to join and cut metals underwater, leading to the development of underwater welding technology. Khrenov's breakthrough came when he discovered that the key to successful wet welding lay in controlling gas bubbles at the point of contact between the arc and metal. He developed a waterproof coating for electrodes and a stable power source, enabling him to achieve consistent results. In 1932, Khrenov successfully tested his method in the Black Sea, marking the birth of underwater welding. The technology gained traction globally, with the British Admiralty-Dockyard employing underwater welding for ship repairs in the 1940s – ie the first ever underwater welding was carried out by British Admiralty–Dockyard for sealing leaking ship rivets below the water line In 1946, special waterproof electrodes that further improved the process were developed in Holland by ‘Van der Willingen However, it was not until the 1970s that the first underwater wet welding procedure was qualified to AWS standards by White Grubbs and Dale Anders of Chicago Bridge & Iron (CB&I) and the commercial development of underwater electrodes began. Today, underwater welding is an essential skill set for industries such as offshore construction, oil and gas exploration, and ship repair. I Huge thumbs up to pioneers like Khrenov and others who have pushed the boundaries of innovation in this field as well as the drivers/welders who venture underwater day in and day out 📹© PETRODIVE #underwaterwelding #diving #history #welding