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Keywords: geometry
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30683-MS
..., and parameters of iceberg distribution. The data on the flow rates of the main glaciers were compared with the satellite beacons equipped with GPS (ARGOS) installed on several glaciers. Empirical relationships were derived to determine the mass and geometry of icebergs based on instrumental...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30679-MS
.... distortion build direction thermal-structural simulation assembly geometry orientation offshore technology conference adoption constraint upstream oil & gas simulation design space support structure additive manufacturing part orientation application residual stress optimization problem...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30783-MS
... representations and approaches can be simplified and streamlined, while still providing the advantages of CFD. Variability in geometric representations can be captured with physics representations rather than needing to create predictive CAD geometry. These types of simplifications can increase the ability to...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30803-MS
... research is required. With the goal being to work towards bringing fire modeling to the same standard of explosion modeling without the additional cost and schedule burdens to projects of traditional CFD fire modeling. fire modeling geometry view factor offshore facility thermal radiation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29249-MS
... paper to provide a useful methodology for conducting FM-based analysis of arbitrary geometry using the K I and σ ref solutions provided in API 579-1/ASME FFS-1. The method is presented in the form of a case study which describes the FM-based fatigue analysis of a seat pocket radius within a valve body...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29289-MS
... models). In response, the SNAME OC-8 Panel organized a first-of-its-kind comparative wind load study to benchmark the relative accuracy and repeatability of the three wind load estimation methods for a representative semisubmersible. To enable a true apples-to-apples comparison, model geometry was...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29298-MS
... unusual structural geometries on the bottom of the ocean in the near shore environment is not as well understood. This paper provides a review of recent work to develop and validate numerical modeling methods that can predict scour around complex submerged structures as well as potential countermeasures...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29270-MS
... semisubmersible with simplified topsides geometry. Comparison of the wind loads from independent CFD simulations from the participants confirmed that CFD can provide reliable and accurate wind load with fewer uncertainties in the simulation (or test) set up than wind-tunnel testing. A roadmap to develop the...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29360-MS
... hardware (erosion, flow induced vibration, scaling). One-dimensional mechanistic models are used to solve these flow hindrance issues in wells and pipelines but provide limited results in the complex geometries of subsea and subsurface equipment. In subsurface applications, a CFD workflow was used to...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29390-MS
... , P.D. , Brown , C. , and Schoepf , V. , "Assessing Casing Wear in the Absence of a Baseline Caliper Log" , SPE/IADC-173143-MS, 2015 . Priest , J.F. , Computing Borehole Geometry And Related Parameters From Acoustic Caliper Data . SPWLA 38th Annual Logging Symposium, 15-18 June...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29449-MS
... geometry of corrosion pits have more impact on fatigue lives than the pit size. The JIP study has shown that FE analysis is an effective tool to capture the hot spot of corroded chain links and can provide insight in their fatigue performance. Different methods on the assessment of the stress range of a...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29480-MS
... regions is provided. The seals ID/OD and clearances were measured after the pump was disassembled. The leakage effect in previous mechanistic ESP performance prediction model is modified based on test results. By using the appropriate geometries, the deteriorated head curve can be calculated. Compared to...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29488-MS
... diagrams (FAD) and finite element method (FEM) have been successfully implemented on simple and regular geometries, they are not suitable for structures with complex geometries, transition of failure modes, presence of residual stress, and nonlinear fracture toughness. Extended finite element method (XFEM...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29566-MS
... changing geometry on the erosion rate, enabling us to estimate the reliability of the tool accurately. In addition, we investigate the structural integrity of the tool and the effect that sand erosion has on it. Structural integrity analysis of the eroded tool geometry is performed using finite element...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29609-MS
... possible practical implications of the new designs for the envelopes of the use of SCRs and SLWRs. riser rotational stiffness jumper deflection angle upstream oil & gas mpa scr riser hang-off configuration geometry coil loading flexible joint spool hang-off clamp ksi deflection...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29632-MS
... descriptions of the systems are available elsewhere,2, 5 and as such, only a brief overview is presented herein. The small system allows to test small sized pipes (1-inch) with different shapes and geometries, capable of performing experiments relatively easy with good characterization. The large system allows...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28832-MS
... associated turbulence intensity. End users of wind tunnel tests have reported occasions where unexpected relatively large variation in forces was observed for fairly similar geometries. For example, large variations in wind forces have also been reported by Croonenborghs et al. (2013) and Andrillon et al...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28789-MS
... fmeca process requirement casing design psi 350 critical load case hanger api 17tr8 stakeholder failure mode wellhead system verification upstream oil & gas casing and cementing operator application geometry completion installation and operations OTC 19694, Development of the...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28698-MS
... simulated by "turning elements off" once the stress/ strain value has reached a critical point. Using the same geometry and mesh will allow for a true comparison of what effect each loading condition has on the shear force. geometry pipe off-center pipe criterion kip shear force baseline...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28906-MS
... properties and geometry of the drill pipe to be sheared and the hydrostatic flowing pressure during ram closure. Fluid hydrodynamic effects on the rams are difficult to simulate and currently cannot be produced in a laboratory setting due to complexity and personnel safety in conducting such tests under high...

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