Concrete of offshore structure are prepared using locally available materials and compressive strength is between 25 to 65 mpa. Environmental analyses apart, offshore oil and gas platform are remarkable constructions. There are many applications of offshore concrete structures includes hydrocarbon exploration and production and other specific utilizations. 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. There are different types of offshore platforms, such as. 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. These coating systems are applied by conventional air, airless, or plural component spray. Offshore platforms by abhishek kumar indian maritime university visakhapatnam campus 2. Offshore oil rig and platform types different types of offshore oil rigs and platforms are used depending on the.
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. 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. There are two types of offshore drilling ringsplatforms. The steel jacket type platform on a pile foundation is by far the most common kind of offshore structure and they exist. Water depth or size of the oil field represent just a few of these challenging conditions. The first type is moveable offshore drilling rigs that can be moved from one place to another and the second.
They boast space for drilling rigs and production facilities, as well offer accommodation facilities for crew. Depending upon the depth of the sea water and as per the requirement, various types of platforms are designed. An introduction on offshore engineering and technology. Different types of offshore oil and gas production structures. Jackets provides protective layer around the pipes. Single cable capsules do not go on ships, they are specifically designed for, and used by, offshore rigs and platforms. A flare jacket is a tubular steel truss structure that extends from the mud line to approximately 34. Fixed platforms are built on large steel or concrete legs that are fitted directly onto the seabed.
Haritos the university of melbourne, australia abstract. 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. Production platforms support control rooms, compressors, storage tanks, treating equipment, and other facilities. 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. The designer has to start from the basics including offshore as a definition, the. Typical offshore structure will have a deck structure containing a main deck, a cellar deck, and a helideck. 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. Ramesh singh, in corrosion control for offshore structures, 2014. Many oil platforms will also contain facilities to accommodate their workforce. The offshore petroleum industry in the gulf of mexico. Learn about the main types of offshore productions units that. Types of offshore structures fulmar jacket platform jackup drilling unit with spud cans derrick helideck. Introduction to the analysis and design of offshore structures an overview n.
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. In the study, different types of fixed and floating structures for the exploration, production and. 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. An overview of design, analysis, construction and installation of. Chevrontexacos petronius in 1998 at 534 m 1,754 ft gom. Types of offshore oil rigs mnn mother nature network. Offshore structure design and construction paul a frieze pafa consulting engineers, uk keywords. Without the knowledge of these basics, design work will be difficult and the probability of faulty design might increase. This standard test method covers liquidapplied new construction coating systems for the atmospheric zone and splash zone of an offshore platform. Types of offshore platforms ladies, here we meet again for part ii. 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. Examples include semisubmersibles, spar platforms, floatingleg platforms, drillships, fpsosfloating production, storage and offloading systems. 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.
Type of platforms fixed s jacketed platform space framed structure with tubular members supported on piled foundations. The oil and gas are separated at the platform and transported through pipelines or by tankers to shore. The jacket structure is the most commonly used fixed offshore platform. These offshore platforms are each designed to meet the challenges that the individual application demands. Platform technologies for offshore renewable energy conversion.
This type of platform is extremely stable and is designed to last for a very. 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. 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. The number of offshore assets reaching their end of life, globally, is rising, meaning. 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. Your field development provider, delivering all types of offshore fixed and floating facilities through an integrated network of.
The overwhelming majority of platforms are piledjacket with deck structures, all built in steel see. Modern and advanced drilling techniques and methods have. One way to consider the purpose of an offshore cas compliance activity i. Introduction to various types of offshore platforms and their uniqueness. The specific rules and other classification criteria that are being supplemented by this guide include the.
Types of offshore platforms minyak dan gas malaysia. 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. 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. 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. Offshore platforms are very heavy and are among the tallest manmade structures on the earth. 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. Conocophillips magnolia in 2004 1,425 m4,674 ft gom. Husky energy expects first gas from the liuhua 291 field development offshore china by the end of the year. 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. 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. Semisubmersibles and drill ships are designed to remain afloat hundreds of miles in deep waters. Practical engineering management of offshore oil and gas. 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. Introduction to the analysis and design of offshore.
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. 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 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. Guidelines for inspections of offshore installations. Pdf an introduction to offshore platforms researchgate.
There are different types of wellhead platforms, process platforms, central processing platform related information. Different types of oil production systems are used at offshore oil and gas exploration sites at the sea. Jacket structures, topsides, design, construction, metocean, geotechnical, loads, load combinations, piling, offshore foundations, corrosion protection contents 1. Though floating in nature, they are also a type of permanent oil production systems.
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. The living accommodations platform for offshore workers is commonly called a quarters platform. 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. Types of offshore concrete structures details and uses. This could include oil exploration, offshore construction, excavation, diving support, supplyrepair vessels or more. Offshore structures an overview sciencedirect topics. Mentioned below are some of the main types of permanent oil production systems that are used. An introduction on offshore engineering and technology instructor. The buying guide is organized by various exposure types, such as jacket immersed area, for. The platform costs over a billion dollars to build. The buying guide is organized by various exposure types, such as jacket immersed area, for steel substrates. 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. Main types of offshore platforms include fixed platform.