Many oil platforms will also contain facilities to accommodate their workforce. In the study, different types of fixed and floating structures for the exploration, production and. Offshore platforms are very heavy and are among the tallest manmade structures on the earth. Learn about the main types of offshore productions units that. Introduction to the analysis and design of offshore. These offshore platforms are each designed to meet the challenges that the individual application demands. The specific rules and other classification criteria that are being supplemented by this guide include the. Types of offshore platform elreed y, 2012 during the operation, the offshore structure is exposed to several types of environmental loads such as wave, wind and current.
Floating these offshore platforms are floating in free surface and are movable from one location to another. The number of offshore assets reaching their end of life, globally, is rising, meaning. Main types of offshore platforms include fixed platform. Platformrig information includes information on a complex with specific information on the structure andor abandonment of a complex, production equipment and gas, oil, water and condensate status. The techniques and equipment for drilling offshore wells offshore drilling are very similar to those used for onshore drilling. While to the nonexpert eye all platforms may look the same, there in fact several different types.
This dataset provides information on the complex as to availability of a heliport and whether the complex is in the production status and manned or. Depending upon the depth of the sea water and as per the requirement, various types of platforms are designed. Pdf an introduction to offshore platforms researchgate. The offshore petroleum industry developed in the gulf of mexico because the gently sloping outer continental shelf allowed the industry to move slowly into deeper water, developing new drilling technologies as it went. Though floating in nature, they are also a type of permanent oil production systems. Type of platforms fixed s jacketed platform space framed structure with tubular members supported on piled foundations. The three types of standardized offshore platform designs that were evaluated are categorized into design classes based on the number of shutdown loops in the pssds. Haritos the university of melbourne, australia abstract. A flare jacket is a tubular steel truss structure that extends from the mud line to approximately 34. The jacket structure is the most commonly used fixed offshore platform. The buying guide is organized by various exposure types, such as jacket immersed area, for steel substrates. The steel jacket type platform on a pile foundation is by far the most common kind of offshore structure and they exist.
Introduction to various types of offshore platforms and their uniqueness. Fixed platforms are built on large steel or concrete legs that are fitted directly onto the seabed. These coating systems are applied by conventional air, airless, or plural component spray. The designer has to start from the basics including offshore as a definition, the main types of offshore structures, main offshore fields, the major offshore operators and main regulations. Your field development provider, delivering all types of offshore fixed and floating facilities through an integrated network of. The ssi capsule is the only lifeboat designed specifically for the offshore oil workers use and safety.
This type of platform is extremely stable and is designed to last for a very. Floater platforms semisubmersible platforms tensionleg platforms spars. 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. Types of offshore structures fulmar jacket platform jackup drilling unit with spud cans derrick helideck. First spar platform was installed in 1,930 feet of water in the gulf of mexico.
Offshore supply industry dynamics the main drivers in the energy sector and the value chain characteristics for offshore oil and gas and offshore wind crossdisciplinary and problemfocused research and education in the maritime industry context. October 7, 20 september, 20 marissa leave a comment. This could include oil exploration, offshore construction, excavation, diving support, supplyrepair vessels or more. Offshore drilling rigs drilling offshore drilling rigs many of the worlds potential reserves of hydrocarbons lie beneath the sea, and the hydrocarbon industry has developed techniques suited to conditions found in the offshore, both to find oil and gas and to successfully produce it. The platform costs over a billion dollars to build. Ramesh singh, in corrosion control for offshore structures, 2014. Typical offshore structure will have a deck structure containing a main deck, a cellar deck, and a helideck. An offshore drilling rig has to create the same working conditions as for onshore rigs which can move from one point to another without any difficulty, and they have. In addition, the offshore platform is a flexible structure with low and dense mechanical natural frequencies mnfs, with approximately 4500 orders vibration modes in the frequency range of 040. The overwhelming majority of platforms are piledjacket with deck structures, all built in steel see. Introduction to the analysis and design of offshore structures an overview n. Conocophillips magnolia in 2004 1,425 m4,674 ft gom. Abs has issued for the classification of some types of offshore structures. Without the knowledge of these basics, design work will be difficult and the probability of faulty design might increase.
Practical engineering management of offshore oil and gas. Fixed offshore platform an overview sciencedirect topics. An overview of types and loadings on structures a s kharade1 and s v kapadiya2 since the 1970s a need for deep water structure that would exploit energy resources such as oil and natural gas has arisen. Practical engineering management of offshore oil and gas platforms delivers the first musthave content to the multiple engineering managers and clients devoted to the design, equipment, and operations of offshore oil and gas platforms concepts explaining how to interact with the various task forces, getting through bid proposals, and how to maintain project control are all covered in the. The designer has to start from the basics including offshore as a definition, the. Offshore platforms by abhishek kumar indian maritime university visakhapatnam campus 2. The first type is moveable offshore drilling rigs that can be moved from one place to another and the second. Concrete of offshore structure are prepared using locally available materials and compressive strength is between 25 to 65 mpa. Mentioned below are some of the main types of permanent oil production systems that are used. Types of offshore platforms minyak dan gas malaysia. Types of offshore platforms ladies, here we meet again for part ii. Ok last time i already explained about the introduction of the offshore structures and now we move to the main contents, types of offshore structures.
Guidelines for inspections of offshore installations. The living accommodations platform for offshore workers is commonly called a quarters platform. Type i 50 inputsoutputs remote wellhead platform type ii 500 inputsoutputs production platform type iii 1500 inputsoutputs extensive production platform. Mud mats, skirts, piles, well casings, anchors, and mooring chains are some of these current drain sources. Jackets provides protective layer around the pipes. Semisubmersibles and drill ships are designed to remain afloat hundreds of miles in deep waters. Single cable capsules do not go on ships, they are specifically designed for, and used by, offshore rigs and platforms. Examples include semisubmersibles, spar platforms, floatingleg platforms, drillships, fpsosfloating production, storage and offloading systems.
General introduction objectivescope to identify the basic vocabulary, to introduce the major concepts for offshore platform structures, and to explain where the basic structural requirements for design are generated. Different types of oil production systems are used at offshore oil and gas exploration sites at the sea. Offshore oil rig and platform types different types of offshore oil rigs and platforms are used depending on the. Types of offshore concrete structures details and uses. Water depth or size of the oil field represent just a few of these challenging conditions. Offshore structures an overview sciencedirect topics. This standard test method covers liquidapplied new construction coating systems for the atmospheric zone and splash zone of an offshore platform. Platform technologies for offshore renewable energy conversion.
Complex offshore structures have various parts and components that are temporary or not considered to be part of the structure, but as long as they are there, these parts will drain the cp current. An introduction on offshore engineering and technology instructor. Offshore asset owners must assure a variety of stakeholders that their fixed and floating units can operate safely and comply with shelf regulations in force. Thanks to its experience, expertise across all types of offshore assets, and global reach, bureau veritas provides clients with peace of mind throughout the classification process. Offshore structure design and construction paul a frieze pafa consulting engineers, uk keywords. A large structure at sea used to house crew and mechinery for exploration and or production of natural resouces such as fossil fuels from under the ocean bed. The oil and gas are separated at the platform and transported through pipelines or by tankers to shore. Design for safety framework for offshore oil and gas platforms by abubakar attah umar a thesis submitted to the university of birmingham for the degree of doctor of philosophy school of civil engineering college of engineering and physical sciences the. Types of offshore oil rigs offshore drilling has come a long way since the wharfbased rigs of the late 1800s, giving oil companies an arsenal of options for tapping deepsea deposits. One way to consider the purpose of an offshore cas compliance activity i.
There are different types of wellhead platforms, process platforms, central processing platform related information. An overview of design, analysis, construction and installation of. There are two types of offshore drilling ringsplatforms. First offshore platform installed in 1947 in 21 ft of water today, platforms are being installed in depths exceeding 8,000 ft worlds tallest structure was installed offshore in 1979 in 360 ft of water today, a fixed platform stands in excess of 1,800 ft of water. There are different types of offshore platforms, such as. Exploration of oil and gas stay in a place for a few months mobil or movable jackup drilling rig modu mobil offshore drilling unit production platforms. The united states has only one offshore wind energy farm, but that could change soon, and in a big way, according to a recent cnbc report.
They boast space for drilling rigs and production facilities, as well offer accommodation facilities for crew. Different types of offshore oil and gas production structures. An introduction on offshore engineering and technology. Chevrontexacos petronius in 1998 at 534 m 1,754 ft gom. Husky energy expects first gas from the liuhua 291 field development offshore china by the end of the year. The main differences consist in the arrangement of the drilling rig and of the equipment, and in certain particular methods of carrying out the operations, which have to be. There are many applications of offshore concrete structures includes hydrocarbon exploration and production and other specific utilizations. Jacket structures, topsides, design, construction, metocean, geotechnical, loads, load combinations, piling, offshore foundations, corrosion protection contents 1. Production platforms support control rooms, compressors, storage tanks, treating equipment, and other facilities. Environmental analyses apart, offshore oil and gas platform are remarkable constructions. Modern and advanced drilling techniques and methods have. An oil platform, offshore platform, or offshore drilling rig is a large structure with facilities for well drilling to explore, extract, store, and process petroleum and natural gas that lies in rock formations beneath the seabed. The buying guide is organized by various exposure types, such as jacket immersed area, for.
376 1204 1396 154 1431 1080 22 1308 571 830 514 1042 579 579 956 723 1210 1391 494 242 481 542 530 595 1396 796 1154 908 1312 1346 1113 896 775 884 153 381 749 315 939 880 289 1186 39 217 673 960