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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

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

DP Vessel Operations (Part 1) Dynamic Positioning (DP) system ships play a significant role in the maritime industry, offering a wide range of applications. These vessels utilize various sensors and systems to maintain a fixed position, crucial for operations such as underwater cable laying, installation, and maintenance of oil and gas platforms. One of the key applications of DP system ships is in FPSO (Floating Production, Storage, and Offloading) and Tanker operations. These operations involve the transfer and transportation of products from oil and gas platforms. The versatility of DP system ships allows them to be used alongside FPSOs as well as tankers, providing flexibility in petroleum and gas industry operations. Diving and ROV (Remote Operated Vehicle) support operations are another common application of DP system ships. These operations are used for the construction, maintenance, and repair of underwater structures. DP system ships are ideal for supporting diving teams and operating ROVs. Anchor-handling tugs and platform supply vessels are also significant applications of DP system ships. These vessels are used for the placement and maintenance of underwater structures. DP system ships enable various towing operations and platform supply activities. Construction vessels and crane barges utilize DP system ships for a wide range of operations. These include the construction and maintenance of underwater structures. DP system ships are ideal for supporting various construction and crane operations. Drilling rigs represent another significant application of DP system ships. These vessels support the exploration and production activities of oil and gas beneath the seabed. DP system ships are ideal for maintaining the position of drilling rigs and supporting their operations. Dredging and rock dumping operations are important applications of DP system ships. These operations are used for leveling the seabed and supporting underwater structures. DP system ships are ideal for supporting various dredging and rock dumping operations.

Late post survey activity: Sharing knowledge and prepping the crew for upcoming projects during our charter vessel survey. It's not just about the job, it's about professionalism and continuous improvement! #maritime #surveyvessel #crewtraining

How offshore workers are transferred from platform to vessel using a crane bucket?🧐 Crew transfer is a common phenomenon in offshore marine activities, particularly at oil rigs and gas production sites and at offshore installations, construction or maintenance works. For decades, helicopters have conducted air transfers while walking, rope swing, crew boats, and cranes have been the most used methods for sea transfers during both emergency situations and routine duty. Cranes transfers using a personnel transfer basket accounts for a large percentage of these transfers. Comment please! 📌Knowledge not shared is knowledge lost!

● 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

"The High-Risk World of Underwater Welding" Underwater welding, essential to the maintenance of oil and gas infrastructure, is one of the most hazardous professions. While diving might conjure images of exploring vibrant coral reefs, the reality for underwater welders is far more perilous. These divers are equipped with specialized gear, including thick wetsuits or drysuits and helmets equipped with communication systems to stay connected with their surface teams. Joseph Purvis, who spent six years in the field, highlighted the challenges, stating, "Even some of the best sport divers can get completely lost underwater." Welders breathe through hoses connected to the surface, likened to an umbilical cord, and often operate in murky waters where visibility is so poor they sometimes work with their eyes closed to maintain focus and composure. The risks are substantial, including the dangers of electrocution and explosions due to the high temperatures required for welding. Purvis pointed out the ever-present fear among divers, noting, "If any diver says that they haven't been scared, they're lying." He also mentioned that many in the profession suffer physical injuries, including lost fingers. Despite advancements in technology, the complexities of underwater welding make it a task still unsuitable for automation. Underwater welders are not only involved in repairing and maintaining ships, pipelines, and oil rigs but are increasingly finding opportunities in the renewable energy sector as companies shift away from fossil fuels. #UnderwaterWelding #HazardousJobs #DeepSeaDiving #OilAndGas #RenewableEnergyJobs

The most dangerous job on Earth? Inside the world of underwater welders Welders are essential to the oil and gas industries—but might lose a finger or two. From the @National Geographic on Underwater Welding - here’s what the job actually entails. And it is one job that won't be taken over by a robot. Underwater welding work is for repairs, with a robot it would need to be a semi-automatic process. Fixes in welding aren’t linear or a constant—you really need humans to assess and craft the repair You might need to sign up to read this article but it's an interesting read Craig Westerman Haidee Westerman Bev Kerr Peter Westerman Jess Partner #welding #diving #underwater #dangerousjobs #nationalgeographic #shipyards #nuclearreactors #pipelines #offshore #oilrigs #pipelinewelding #oilandgas #weldingrepairs https://lnkd.in/eEN3WcGq

#DP2 #MPSV Available for Private #Sale. #Vessel will be released from current #charter in the last Quarter this year. Currently she is working in SE Asia. Owners invite all direct/ interested Parties to register and inspect the vessel so she can be appreciated. #Accommodates 60 #POB in comfortable en-suite cabins and features a sturdy 65MT #AHC #crane (#upgradable to 70MT) for efficient #subsea #lifting #operations, making it ideal for diverse #offshore #scopes of #work. With its #Kongsberg DP2 #Class #Dynamic #Positioning #System and ample #deck space of 928m2, this #MPSV ensures precise #safe #navigation, #stability, and #flexibility with large #liquid & #dry #bulk #cargo #handling, #subsea #support. #Vessel is suitable for #SAT/ #Air #Diving, #ROV #operations with capabilities to execute #survey/ #inspection tasks #globally. While she has additional 200m2 ROV deck for operational efficiency at sea and all #Class/ #Flag certificates are up-to-date. Contact: management@horizonoffshoreservices.com further inspection arrangements. #Offshore #Oil & #Gas #Subsea #ROV #SAT #Diving #Air #Diving #OffshoreConstructionInstallation #Renewables #UAE #India #Africa #Americas #Malaysia #Indonesia #Mexico #Projects

Offshore Rov Market Research Report: Offshore Rov Market Size, Share & Trends Analysis Report By Type (Observation Class, Work Class, #InterventionClass), By Depth (Less than 5,000 Feet, 5,000 to 10,000 Feet, Above 10,000 Feet), By Application (Repair and Maintenance, Services Remote, #Subsea Intervention, Tooling Design and Build, Drilling and Well, Completion Support, Construction Support Inspection, #Subsea Engineering Services), COVID-19 Impact Analysis, Regional Outlook, Growth Potential, Price Trends, Competitive Market Share & Forecast, 2022 - 2028 Global #OffshoreRov Market size was valued at USD 928.54 Million in 2021 and is projected to reach USD 1124.23 Million by 2028, growing at a CAGR of 4.26% from 2021 to 2028 according to a new report by Intellectual Market Insights Research. The #OffshoreRov market #research report comprises a thorough examination of the current and future #scenario of this industry vertical. The research highlights major trends and opportunities, as well as challenges, for various segments and sub-segments, while #broadening the company horizon. The study report also includes extensive information based on past and present patterns across several industry verticals to help find various expansion prospects. Throughout the forecast period, several estimations regarding market share, market size, and industry growth rate are presented. The research includes information on competitive analysis as well as #consumption habits and pricing strategies depending on the Offshore Rov market. 📚𝗚𝗲𝘁 𝗧𝗵𝗶𝘀 𝗥𝗲𝗽𝗼𝗿𝘁𝗮𝘁 𝗗𝗶𝘀𝗰𝗼𝘂𝗻𝘁𝗲𝗱 𝗣𝗿𝗶𝗰𝗲::👇 https://lnkd.in/dQ8nJeHD Horizon Geosciences Hughes Subsea, an OEG Renewables company Hydra Offshore Construction HydroDive Group IDMC Impresub Diving & Marine Contractor SRL IKM Subsea AS IMCA (International Marine Contractors Association) International Naval Works "INW" International Submarine Engineering Ltd. ISEAS LLC Island Offshore James Fisher and Sons plc James Fisher Renewables JD-Contractor A/S KD Marine Ltd Kito Enterprises General Trading LLC Kongsberg Maritime  Maridive Offshore Projects Marine Engineering Diving Services Unidive Subsea Pte Ltd Mermaid Subsea Services (Co) Ltd Saudi Arabia MMA Offshore Limited Mohn Drilling AS NAMCO Northern Survey Oceaneering Orange Marine OSC Marine Group Pageo   PEINSO - Petrological Integrated Solutions Pharos Offshore Group Purus HST Rana Diving Reach Subsea Interocean Marine Services Rovco Saipem SAROST S.A. Sea-Bird Scientific