... process of a riser coupling as the allowable stress limits depend on the stress categories. Despite the guidance provided by the standards, differentiating between primary and secondary stresses, or between general and local stresses can be a challenging task. API and ASME codes provide explicit...

... and reliability. Novel operational assessment tools and method have been developed. Hydrodynamic models have been developed for a range of different LNG and LPG carriers based on potential theory. These models include non-linear mooring characteristics, multi-body coupling, and coupling with sloshing effects...

... in the flow loop and (ii) the resulting loads seen by the structure. The considered multiphase flow solver is based on the well-known Unit Cell Model (UCM, refer to Nicklin et al. (1962) , Wallis (1969) ) and coupled with usual commercial Finite Element (FE) solvers to recover the expected vibratory levels...

... and accuracy, a novel simulation methodology was developed by coupling the fluid interaction with the BOP as it shears a drill pipe using LS-DYNA® and ANSYS® Fluent®. The conditions and assumptions made for this analysis are presented herein, and initial simulation cases are compared against validation data...

... ever ‘swarfless’ section milling system. milling operation offshore technology conference swarf knowledge management field deployment coupling personnel section milling section milling system milling operation upstream oil & gas case history mud motor new approach drilling...

... in a decoupled way. Ideally, a fully coupled analysis should be performed in time domain in order to take into account the dynamics of the floater and lines systems simultaneously as well as the nonlinearity involved. However, as this type of analysis is very time consuming, an alternative methodology...

... voltage application reduction upstream oil & gas frequency subsea vsd rotary converter voltage drop subsea system torque subsea processing transmission frequency cable transmission voltage generator transmission vsd vrc transmission loss coupling topside vsd reactive...

... on existing subsea structures as part of the Clear Gulf study. In the past, a major shortcoming of post-installed monitoring systems has been poor coupling between the sensor and structure; this study provided methods to overcome this problem. Both subsea field testing and laboratory testing were performed...

... Abstract The shrink-fit connection has been designed and developed to enable the manufacture of high pressure deepwater riser systems when traditional pipe join methods such as welded or threaded and coupled are not feasible. For example, welding may not be suitable for joining high strength...

... constitute a manufacturing bottleneck. For these reasons alternative methods of manufacturing are being sought. One such option for tube joining uses a Shape Memory Alloy (SMA) coupling which has been in use in the aerospace industry for over 40 years. SMA couplings, unlike other mechanical couplings, have...

... is based upon the use of two Morgrip couplings and a spool to be installed with remotely operated H-frames and a purpose build Coupling Installation Frame (CIF), constituting vital parts of the total Pipeline Repair System. The couplings were produced and tested back in 2005. This paper will cover...

... Abstract This paper will discuss the current state of reservoir geomechanics and consider several areas of reservoir development and management where geomechanical influences are important. In order to better integrate our workflows, coupled simulation is often used to exchange parameters...

... signal-to-noise ratio, very good ground-station coupling, reliability and excellent response in general to wave modes in connection with ocean-bottom seismic. Fibre optic sensor technology, for applications within permanently buried seismic acquisition systems, is viable and is now introduced...

... tests. We used the data to test the coupling for P and S waves and demonstrate imaging with multiples. Introduction The world demand for energy is accelerating, while its reserves of energy are diminishing. Producers are compelled to explore and produce in more challenging places and to maximize...

...) contractors. Any change by one contractor to a key connecting system can affect the coupled motions and integrity of components designed by other contractors. Achieving the project targets for safe separation between the SWHP and FPSO required diligent coordination and an effec- tive communication effort...

... controls and umbilicals friction stiffness irregular wave time domain analysis coupling torsion local analysis upstream oil & gas umbilical umbilical design design 1 procedure curvature capacity curve friction stress offshore technology conference subsea system axial strain...

... development shows that high-strength aluminum alloys and available manufacturing technology can be successfully applied in the development of ultra-deep water drilling risers with a variety of coupling designs, high-pressure riser, production risers and other offshore oil and gas systems. Introduction...

... in the industry, but it was new for us in the standardization activity. A lot of flexible pipes were tested and operated in the sizes Ø215 with success. The design of the flexible pipe and coupling for gas service is presented on the Fig.2. and Fig.3. respectively. There is on the Fig.4. a Halliburton ship...

... reasons. The cable or node is physically located on the seafloor so that the seafloor itself is a cause of vector infidelity. Spatial variations in the seafloor conditions can also lead to variable coupling, and may cause a cable to lay in an odd position. For example, a rock could cause the cable...

... coupling can be poor, in particular in the crossline direction. Node-based systems are more expensive and tedious to deploy. Vector fidelity is usually better than for cable-based system. Uniform azimuthal coverage can easily be obtained. Different from cable-based systems, there is no preferred direction...