Design and Analysis of Deep Water Marine Riser Systems for Floating Production Facilities
As the global offshore search for oil and gas reserves expands, deeper waters and more hostile environments will be encountered. However, as the search continues, the likelihood of finding very large reservoirs that justify the expense of fixed platform production facilities (conventional jackets or gravity-type structures) decreases. Furthermore, the water depths encountered, in some cases, exceed the bounds of fixed platform technology. To produce the marginal fields, or those at great depths, therefore, suggests the use of floating production facilities. From the standpoint of the marginal field, a floating production facility requires low capital outlay and provides an early return on investment. In addition, after the field is depleted, the floating production facility can be easily reused. From the standpoint of a deep water reservoir, a floating production facility may be the only technological and economic alternative for producing the field. In either case, the riser system for the floating production facility is a crucial element in the system and, consequently, the structural analysis of the riser system becomes a key in the design process.
KeywordsWave Height Wave Period Well Bore Fatigue Life Prediction Ball Joint
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