Πλοήγηση ανά Θέμα "Offshore oil well production"
Αποτελέσματα 1-19 από 19
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Bending and buckling of internally-pressurized steel lined pipes
(2019)During offshore installation, steel lined pipes are subjected to severe plastic bending, resulting in detachment of the thin-walled liner pipe from the outer pipe and eventually, the formation of local buckling in the form ... -
Dented externally-pressurised pipes subjected to cyclic axial loading
(2019)The present paper describes a numerical investigation of the mechanical response of externally-pressurized dented stainless-steel pipes, subjected to reverse cyclic axial loading. This is the first part of a large-scale ... -
Development of an equivalent static method for the approximation of the dynamic response of offshore structures
(2019)Purpose: The design of compliant towers in deep waters is greatly affected by their dynamic response to wave loads as well as by the geometrical and material nonlinearities that appear. In general, a nonlinear time history ... -
The effect of spiral cold-bending manufacturing process on pipeline mechanical behavior
(2019)Large-diameter steel pipes, fabricated through the spiral-welding manufacturing process, are extensively used in onshore pipelines for the transmission of energy (hydrocarbon) and water resources. However, their use in ... -
Energy security in the Eastern Mediterranean
(2017)As is widely known, the East Mediterranean region has experienced a series of large-scale discoveries of energy resources offshore Israel, Cyprus and Egypt (Leviathan, Tamar, Aphrodite and Zohr fields) since 2009. From the ... -
Fatigue of welded tubular X-joints in offshore wind platforms
(2019)The paper is part of the European research program JABACO (2015-2018), on the optimization of design and construction of offshore jacket platforms for supporting large wind turbines (5 - 10 MW) in water depths ranging from ... -
Fatigue resistance of welded steel tubular X-joints
(2020)High-cycle fatigue experiments are performed on welded tubular steel X-joints, with braces and chord of equal diameter. They are scaled-down joints, used extensively in offshore wind platforms. Three different welding ... -
The importance of accurate calculation of the nonlinear extreme wave kinematics in the design of offshore platforms
(2015)The purpose of this work is to highlight the importance of the calculation of the nonlinear extreme wave kinematics appropriate for load calculations of the elements of a platform in deep water. Numerical calculations have ... -
The importance of accurate calculation of the nonlinear extreme wave kinematics in the design of offshore platforms
(2015)The purpose of this work is to highlight the importance of the calculation of the nonlinear extreme wave kinematics appropriate for load calculations of the elements of a platform in deep water. Numerical calculations have ... -
Influence of lined pipe fabrication on liner wrinkling
(2019)An economical method to protect offshore pipelines against corrosive ingredients of hydrocarbons is a double-walled (also called “lined” or “bi-metallic”) pipe, in which a thick-walled low-alloy carbon steel (“outer pipe”) ... -
Liner wrinkling in offshore steel lined pipes during reeling installation
(2021)A three-dimensional numerical model of a mechanically bonded lined pipe is developed, simulating its structural response during the reeling installation method. An installation/failure–repair scenario is considered with ... -
Mechanical behavior of aluminum honeycomb sandwich structures under extreme low temperature conditions
(2019)The current study is an effort to characterize the mechanical response of panels that are used as structural elements at low temperature applications. For the above reason, plaques of aluminum honeycomb sandwich were exposed ... -
Numerical and experimental investigation of the wave loading on a three-legged offshore wind turbine jacket platform
(2018)The purpose of this work is to examine a three-legged jacket tower support system subjected to wave loading. To this end, linear as well as nonlinear wave scenarios are investigated. The structure was designed for offshore ... -
On the consideration of wave and structural nonlinearities in the design of compliant towers through dynamic analysis
(2018)The purpose of this work is to highlight the importance of considering the wave and structural nonlinearities in the design through dynamic analysis of offshore platforms located in deep water. The paper studies the necessity ... -
Optimal sensor placement for parameter estimation and virtual sensing of strains on an offshore wind turbine considering sensor installation cost
(2022)This paper proposes an optimal sensor placement (OSP) framework for parameter estimation, virtual sensing, and condition monitoring using information theory. The framework uses a Bayesian OSP method combined with modal ... -
Soil-Structure Interaction Effects in Offshore Wind Support Structures under Seismic Loading
(2019)This paper explores the performance of a 10 MW offshore wind turbine (OWT) supported either on a large diameter monopile or a 4-legged jacket emphasizing on the nonlinear response of its belowseabed foundation. The seabed ... -
Structural behavior and design of high-strength steel welded tubular connections under extreme loading
(2020)The present work is motivated by the increasing need for cost-efficient solutions in offshore structural systems for wind energy production and for improvement of their structural performance. The structural behavior and ... -
Structural response of steel lined pipes under cyclic bending
(2022)Motivated by reeling installation of mechanically-lined offshore steel pipes, the present paper investigates the structural performance of a bi-material lined pipe under cyclic bending, using advanced finite element tools. ... -
Ultra low-cycle fatigue performance of S420 and S700 steel welded tubular X-joints
(2019)The present study is motivated by the need for improving the fatigue performance of offshore wind energy structural systems. In particular, the ultra low-cycle fatigue performance of welded tubular X-joints is examined, ...