Although the project had time constraint, NEL managed to achieve defined results in relatively short period with the help of versatile Tekla software
The offshore company NPCC Engineering Ltd (NEL) is a joint venture of NPCC, Abu Dhabi and Arcadia Shipping, Mumbai, carrying out design and engineering activities for oil and gas upstream industry. NEL’s Quality Management System (ISO 9001:2008) is certified by BUREAU VERITAS and it has carried out several design and engineering projects of new well head platforms, subsea pipelines and topsides modifications on well head/process platform.
NEL had a task to create well head platforms at WO-16 and SB-14 cluster field located at South East of SH process complex of Mumbai High Field in water depth of 75 to 80 metres. The project scope consists of 5 new well head platforms and 2 major deck extension on process complexes. NEL was already equipped with high-end software needed for oil and gas upstream projects such as PDS, PDMS, STAAD, Sacs and Caesar.
There was need to have 3D software to handle their all structural needs start from concepts to engineering, detailing, fabrication to erection. After extensive evaluation and anticipating upcoming challenges NEL decided to switch from traditional 2D based platform to 3D BIM based process and technology. NEL chose Tekla and decided to implement the software in this fast track green field well head platform project.
WO-16 Cluster & SB-14 Wellhead platforms projectThis project is a new well head platform which is supported on four legged fixed jacket structure with two legs having single batter and other two legs have double batter. Jacket is made of tubular sections, welded together, and it is anchored in seabed with main or skirt piles. Jackets have spider deck at top level and have diagonal bracing in all faces connecting horizontal framing levels. It also includes boat landing, buoyancy tank, anodes, riser, skirt pile guide and lifting or upending trunnion etc. Maximum jacket weight is 2,100 MT.
The platform top side consists of sub-cellar deck, cellar deck, main deck and aluminium helideck. Top side also includes building module, vent boom, crane pedestal, solar panel supporting platform, well head access platform, walkways, stairways, ladders and railings. Maximum topside weight is 1,900 MT.
Complexity handled with easeNEL structural design team worked based on the requirements of client and came up with relevant technical and design issues to be developed and incorporated in the Tekla model. Tekla technical support team and NEL design team worked together during development and customised few tools as per the project requirement. Although the project had time constraint, NEL managed to achieve defined results in relatively short period with the help of versatile Tekla software and the excellent implementation support provided by the Tekla team, the company claims. In the process of project execution Tekla local support team got feedback on a few small requirements of offshore industry incorporation. This can further fine tune Tekla offerings to all offshore players. Interoperability contributed towards successThe design and modelling of the structure was done with the Tekla Software right from the early stage. Modelling began with the main steel and secondary steel structure as soon as the calculations were completed with SACS. The model is completed later with all the tertiary elements such as the connecting plates, equipment supports, access platforms, padeyes, stiffeners, node plates, cut outs and penetrations as the vendor information was made available. The robustness of the software in dealing with the changes was beneficial in the overall smooth execution of the project.
Tekla and TrimbleTekla was established in 1966, and today it has customers in 100 countries, offices in 15 countries, and a global partner network. Since 2011, Tekla has been a part of the Trimble Buildings Group.Trimble group’s solutions tightly link office-based process and information with the field crew. Trimble design-build-operate platform responses to the needs of owners and the AEC industry by increasing productivity and reducing rework.
Tekla BIMsightTekla BIMsight is a free professional tool for construction project collaboration. Anyone can combine models, check for clashes, mark-up and share information using the same easy-to-use 3D environment. With Tekla BIMsight project participants can identify and solve issues already in the design phase.
————————Other salient features of Tekla that can help on a fast- track project
Easy to learn and implement
Tekla Structures allows simultaneous access by multiple users to the same model
Web-link facility allows engineers to review the model simultaneously as it is getting developed
Tekla Structures users can streamline the design and fabrication processes, ultimately ensuring the highest level of quality in project deliverable
Free tools Tekla BIMsight for every NEL team member involved in projects to communicate collaborate with others.————————–
NEL received following benefits:
Generating detailed structural material take off list very quickly and accurately during design phase of job
Monitoring weight of the structure and the position of the deck structures centre of gravity during the design phase
Direct output of 2D drawings to present to the end user or client and the relevant authorities for approval or certification purposes thus reducing human errors and checking time drastically
The software allows user-friendly interface with Piping or E&I models in PDS for reviews and complete clash free structural model
Import of main steel frame directly from analysis software SACS
Using Tekla 3D structural model for regular design review kept it fully coordinated from any conflicts with the equipment, piping, cable trays and access routes.