1-16 of 16
Keywords: conservatism
Close
Sort by
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35331-MS
... was to utilize SCR field measured data to determine the conservatism, or otherwise, of the simplified approach. Field Data Observations The TLP 12-inch SCR dataset includes several events containing both wave and VIV responses at distinct frequencies, allowing for isolation using frequency filters...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30959-MS
... TLP global performance, it is revealed that the Auger tendon tension is conservative given the current operational limit; however, the extra conservatism has not been fully quantified due to the lack of model test data. With the recorded Auger global motions and tendon tensions from the on-board...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29337-MS
... an environment representative of the expected downhole conditions of the project, collected for a previous project. The data set clearly demonstrated that the applicable ASME BPVC design curve (ASME BPVC Sec. VIII Div-2 2013) did not meet the required level of conservatism in this sour corrosive HPHT environment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27601-MS
...OTC-27601-MS Evaluation of the Intrinsic Conservatism in the Design Codes for Subsea Mudmats B. A. M van de Riet, Mammoet; N. B. Yenigul and R. Burgers, Allseas; F. Pisanò, Delft University of Technology Copyright 2017, Offshore Technology Conference This paper was prepared for presentation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25677-MS
... This paper examines the benefits achieved through fatigue monitoring of wellheads. As an introduction, conservatisms in analytical predictions of wellhead fatigue life are cited. In addition, considerations for increasing wellhead fatigue resistance are reviewed along with recent wellhead...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25930-MS
... parameters such as fluid forces could be computed using simplified CFD approaches while often coupled with detailed structural analysis using finite element method to reduce their conservatism. upstream oil & gas equation coefficient structural member modular building protection structure...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23981-MS
... of these levels of conservatism allows a critical view to be taken of analytical models and fatigue results. This in turn facilitates the safe removal of conservatisms from the analytical approach and associated cost savings for field operators. Further, in- situ monitoring allows management of fatigue during...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20164-MS
... and investigates the relative conservatism among the six methods. The study provides guidance to designers on the selection of analysis methods and also provides data for API to develop guidance on analysis methods in future revision of API RP 2SK. Major conclusions include: Low frequency damping study: LF...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18922-MS
... advanced models of the critical interfaces. This paper describes the modeling approaches used and assesses the potential conservatism or unconservatism in the more traditional linear approaches. The use of a fully nonlinear structural model of the flex joint to evaluate and assess equivalent linear...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18905-MS
... conservatism amour application loading fatigue life hysteresis flexible pipe stiffener curvature service life backbone curve riser system reassessment riser stochastic timetrace flexible riser upstream oil & gas timetrace fatigue analysis stiffness OTC 18905 Fatigue...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16592-MS
.... For severe damage, where the rope is likely to be taken out of service, the conservatism is significant. For mild dam- age, where the rope might be acceptable for further service, the conservatism is low. The latter case is the target of this guideline. Reference is made to Figure 10, which illustrates...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-12076-MS
... and, overall, is likely to have only a minimal impact on the safety of the rig. For existing rigs, the increase in safety factors leads to a downgrading in terms of operational water depth. platform design reliability-based code calibration upstream oil & gas conservatism strength offshore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6934-MS
... ground motion earthquake pushover analysis new zealand equation upstream oil & gas spectra platform brace seismic reassessment conservatism substructure criteria seismic criteria inertia force seismic activity reservoir characterization reduction maui OTC 6934 Seismic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5255-MS
... been underpredicted. The computation of a regression line (with associated slope and intercept) can be used to quantify the difference between the measured and predicted response. The results of the regress:Lon analysis confirm the trend towards some conservatism in the analytical predictions. Slopes...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–9, 1984
Paper Number: OTC-4665-MS
... the pipe is affected by the returning wake, or to situations involving combinations of waves and steady current. The lack of conservatism in the use of the low DnV 1976 coefficients (which re- flected many years of industry experience) was in general balanced by conservatism in other aspects of the design...

Product(s) added to cart

Close Modal