Dynamics of Offshore Structures by Minoo H Patel (Auth.)

By Minoo H Patel (Auth.)

Exploitation of oil and fuel reserves from hydrocarbon reservoirs under the ocean mattress has elevated swiftly because the Sixties. even though, the big variety of topic parts inside ocean engineering has posed difficulties within the educating of scholars since it comprises connection with textbooks on many disciplines together with corrosion metallurgy, meteorology, approach engineering or even marine biology. during this textbook, the writer goals to provide an built-in therapy of the most topic parts which give a contribution to the layout, development, set up and operation of fastened and floating offshore constructions. It emphasizes the basics of oceanography, fluid mechanics, wave conception, hydrodynamics and structural research for college students analyzing ocean engineering or naval structure at undergraduate or postgraduate point. Sections on version checking out, full-scale measurements, layout and certification also are integrated to make sure that the ebook is of worth to expert engineers

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Salinity is defined as the total amount of dissolved solid material by weight in sea water and may be closely approximated by determining the concentration of one major ion and multiplying it by a constant. It is common practice to use the chloride and bromide ion contents for this purpose, with the bromide content usually converted to its chloride equivalent. The total chloride plus bromide equivalent contents are then known as the chlorinity. Sahnity may also be determined by other means, some of which are associated with measuring electrical conduc­ tivity and relating it to the ion content and temperature of the sea water.

Other techniques that are sometimes used to deduce sahnity 50 T h e ocean e n v i r o n m e n t depend on the refractive index of sea water or its density. Apart from its sahnity, the variation of density, pressure and tempera­ ture with vertical distance from the sea bed up through the sea surface into the upper atmosphere, offer an interesting description of the physical properties of the oceans and the atmosphere above them. 7(ß, 6, and c) presents these density, pressure and temperature profiles with vertical distance.

A fleet of semisubmersible and ship shape pipe laying vessels, survey vessels and associated pipe laying methods and repair techniques are part of the technology of offshore field development. The design, installation and maintenance of subsea well heads, controls, manifolds and protection frames are carried out within a separate subject area called subsea engineering. Some subsea equipment presents difficult design problems since it operates in a harsh, highpressure environment and is extremely difficult to access and repair.

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