Nonlinear static and dynamic analyses of jackettype offshore. Pdf structural integrity assessment of fixed offshore. One of the important reasons of fracture in jacket pelatforms that makes the sadenly failure and structual resistanc reduce at long time, is fatigu phenomena. Improve design quality and predict offshore structural performance using a unified analysis environment that enables the efficient exploration of. In this platform the design point of view i provide the jacket 6 legs are are battered at. The analysis process is speeded up using the multicore functionality of the pc. In the present analysis, dynamic behavior of the structure and deflection of the platform is studied for. Bentley systems, incorporated, the leading company dedicated to providing comprehensive software solutions for sustaining infrastructure, recently released the latest version of its sacs software for the analysis and design of new and existing fixed offshore oil and gas structures and wind farm structures. Offshore structure design an overview sciencedirect topics. The analysis is performed based on api 6 and local guidelines5. Offshore design company offshore engineering service. Sacs is an integrated suite of software that supports the analysis, design and fabrication of offshore structures, including oil, gas, and wind farm platforms.
Is this true and what is the future of using staad for offshore analysis such as transportation. Sacs is an integrated suite of software that supports the analysis, design, fabrication, and installation of offshore structures, including oil. Pl193 oil field jacket design and development of fixed offshore structure design tool software offshore oil engineering co. Design and analysis of offshore fixed platform using sacs 5. It will cover all the stages of the modelling design and analysis from the model preparation until the. Study of fixed jacket offshore platform in the optimization design. Ongc uses offshore design and analysis software to. The training on the application and usage of the sacs software will be carried as per the attached proposed plan. Offshore platform design and simulation software moses. Improve design for operational safety through ship impact and dropped object analysis, and minimize risk through offshorespecific load generation. Because of existence of peridice loads derived by waves, sea current, wind, etc. Bentley takes pride in playing a vital role in the engineering design of this wind farm.
Improve design quality and predict offshore structural performance using a unified analysis environment that enables the efficient. Bader diab naji tahan, in handbook of offshore engineering, 2005. Modelling and analysis of fixed offshore structures using sacs software. Predict behavior of a platform or topside structure with comprehensive. Controversial areas and areas that definitely need further research work before they can be used in a design or analysis of offshore. The fixed offshore jacket structure is first assessed at design level by performing linear static analysis using sacs software 8. Achieve offshore structure compliance more quickly with the most comprehensive and uptodate international design code coverage available.
Sacs provides engineers with comprehensive analysis and design capabilities that improve infrastructure operational safety and minimize risk and ensure compliance for a broad range of structures. Bentley acquires sacs, leading software for offshore. Inplace analysis, an analysis in fixed offshore platform. Ongc uses offshore design and analysis software to requalify aging platforms. Introduction to the analysis and design of offshore. Sacs offshore structure design and analysis software. The gh bladed software outputs a special file for sacs which can be used to automate the fatigue and strength analysis. Sacs offshore structural analysis and design software youtube. Pdf offshore fixed platform design inplace analysis. The overall objective is to provide participants with deep understanding of the design and analysis of fixed offshore platforms, specifically, the concept, design. The process of fatigue analysis on fixed metal offshore. Design safe foundations for offshore structures using sacs pile structure design. Ongc produces oil from the western offshore fields off the coast of mumbai, india.
This paper represents a case study of the existing fixed offshore platform located in persian gulf by inplace strength analysis. Offshore and marine engineering analysis, design software. Jacket platform sacs pushover analysis aging effect persian gulf 1. Offshore structure platform design using sacs software. Jacket a and b are fourlegged platforms while jacket c is a sixlegged platform as shown in the figure1. Fixed offshore structures using sacs software an intensive 5 day training course this course is designed, developed, and will be delivered under. The overall structural integrity assessment of the present fixed offshore structure is shown in figure 1. Sacs offshore structure offshore structural analysis software. Cv structural engineer experienced in offshore fixed. Introduction offshore jacket platforms are normally designed for around 25 years design life. Offshore structural analysis software ensure compliance with comprehensive offshore design code coverage in sacs offshore structure. In this study, inelastic nonlinear pushover analysis is performed on a 3d model of a jackettype offshore platform for the north sea conditions. The requalification and recertification of the offshore jacket. In the design phase of a fixed offshore structure, in general there are two types of analysis, the analysis of inservice and preservice analysis.
Jacket structures that are too heavy to be lifted can be launched into the sea off a launch barge. An intensive 5 day training course modelling and analysis. Detailed structural design of production well offshore jacket platform with sacs 5. Platform concepts analysis techniques codes and standards sacs. This study is done by using sacs software for design and analysis. Offshore design and analysis software assists wind farm.
Sacsoffshore analysis and design software training in. Ongc selected bentleys flexible, interoperable offshore design and analysis applications, sacs and sacs collapse, integrating a methodology that allowed for multiple analyses of the platforms using. Inelastic nonlinear pushover analysis of fixed jackettype. Sacs software calculates the maximum combined stress ratio. Code checking of fixed offshore platforms msfjacket structures, deckmodule structures using sacs, sesam.
Investigation of the pile aging effect of a fixed offshore. The industry standard strucad software package developed specially for offshore structural analysis is used to obtain platform displacement response under varying external loadings. Reduce the fatigue risk of foundations by determining response from cyclic environmental loads. Improve design quality and predict offshore structural performance using a unified analysis environment that enables the efficient exploration of alternatives. It will cover all the stages of the modelling design and analysis from the model. For more information on sacs offshore structural analysis software, please visit.
Inservice analysis is to look at the failure mode analysis of fixed offshore platform structure at the time was operating service. Structural integrity analysis of fixed offshore jacket. The semisubmersible vessel design is commonly used in a number of specific offshore roles such as for offshore drilling rigs, safety vessels and oil production platforms. Fixed jackettype offshore structures is a type of oil platform with facilities. The structure is modelled, analyzed and designed using finite element software sacs structural analysis computer system. Collaborate more effectively between disciplines using integrated software applications to analyze, design, and simulate the response of complex offshore structures and vessels. First offshore wind farm designed using sacs software. Structural integrity assessment of a jackettyped fixed offshore platform in. This paper provides a broad overview of some of the key factors in the analysis and design of offshore structures to be considered by an engineer uninitiated in the field of offshore engineering. Sacs is an integrated suite of software that supports the analysis, design, fabrication, and installation of offshore structures, including oil, gas, and wind farm platforms and topsides. The selfweight of the jacket platforms, buoyancy, installed equipment, live load were applied on.
Its ability to dynamically iterate designs allows users to perform advanced analysis, comply with offshore design criteria and visualize complex results. Offshore design and analysis software assists wind farm engineering. Ensure compliance with comprehensive offshore design code coverage in sacs offshore structure. Introduction to the analysis and design of offshore structures an overview n. Bentley applications provided an intelligent analysis and design flow for living quarters, topsides, and jackets. Sacs is an integrated finite element structural analysis suite of applications that uniquely provides for the design, fabrication, installation, operations, and maintenance of offshore structures, including oil platforms and wind farms. Newest release of bentleys sacs software for offshore. An analytical model of a typical platform, located in mumbai high oil fields is developed using the sacs software. This is a base driven analysis and therefore the motions are input at the bottom of the jacket structure. Can you explain the integration of the gh bladed software for offshore wind turbine structures.
Professional static offshore package the professional static offshore package contains capabilities required for typical offshore jackets, wharfs, and dolphin structures. Sacs pile structure design, offshore structure foundations. Improve your analysis and design process for offshore structures with sacs. In performing structural analysis using software such as sacs, for example, it is better to define the direction of the model. Offshore structure platform design using sacs software training in london uk, dubai united arab emirates, kuala lumpur malaysia, istanbul turkey, france paris. During the service life of the platform, it may be required to take more provisions than its. Static and dynamic analysis of pile foundations for offshore structures using grl weap. Sacs offshore structural analysis and design software. Address all structural and naval architectural aspects of your offshore projects with sacs, moses, and maxsurf. Study of fixed offshore platforms jacket in the optimization design process. Haritos the university of melbourne, australia abstract. Course overview sacs is an offshore structural design and finite element analysis software made up of several compatible structural analysis programs that support the analysis, design, fabrication, and installation of offshore structures including those used in on fixed and mobile oil and gas platforms, and wind farm platforms.
Using moses, the team simulated the complex floatover installation for the central platform, and using sacs enabled the joint design work to be completed two weeks ahead of schedule. However, on confirmation of the training, the same can be. Later this year, the block island wind farm on rhode island will be completedthe first offshore wind farm in the united states. The overall objective is to provide participants with deep understanding of the design and analysis of fixed offshore platforms, specifically, the concept, design, analysis and results interpretation of modeling, in place, load out and lifting analysis of jackets and. Fixed offshore jacket type wellhead platform, fem design, sacs software, pushover. Offshore technology conference 2012 bentley systems, incorporated, the leading company dedicated to providing comprehensive software solutions for sustaining infrastructure, today released the latest version of its sacs software for the analysis and design of new and existing fixed offshore oil and gas structures and wind farm structures. Pl193 oil field jacket design and development of fixed. Static analysis is done using the options available on the software which can take inputs for multiple loads and load details accurately. Platform concepts analysis techniques codes and standards sacs software modules module arrangement global settings file naming convention setting up project, run files etc precede, data generator and editor 2 creating structural models with sacs using the graphical interface and be able to demonstrate the method of creating a new model using. Its offshore structural analysis and design software, or sacs, was used in designing the substructures of the wind turbines. Offshore drilling in water depth greater than around 120 meters requires that operations are carried out from a floating vessel. Life extension of an existing jacket platform needs proper reassessment of its structural members, such as piled foundations.66 856 1355 585 261 1184 1309 1188 1487 62 1480 427 86 948 326 119 730 869 832 45 1132 1247 1189 361 177 912 1239 1233 1368 583 1282 244 588 426 652 852 609 1051