Descripción
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- the critical collapse pressure;
- the critical buckling curvature and associate bending moment;
- the hydrostatic pressure acting on the pipeline
- Pressure Containment (Bursting)
- Local Buckling (General); which comprise of:
- Local Buckling External Overpressure only (System Collapse)
- Propagation Buckling
- Local Buckling (Combined Loading Criteria). This may be Load or Displacement Controlled.
- Calculate an overall heat transfer based on the internal area of a pipe if all the coatings have a specified thickness.
- Calculate the required thickness of a coating to produce a given heat transfer coefficient.
- Hydrate formation temperatures for a defined pressure range;
- Water dew point formation temperatures for a defined pressure range;
- Water content for a given dew point temperature and pressure.
- DNV-OS-F101 (2001) Submarine Pipeline Systems;
- ASME B31.4 (2001) American Society of Mechanical Engineers, Gas Transmission and Distribution Piping Systems;
- ASME B31.8 (2007) American Society of Mechanical Engineers, Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas, Anhydrous
- Ammonia, and Alcohols;
- BS PD 8010 (2004) British Standard Practice Document 8010, Code of practice for pipelines; Part 2; Subsea Pipelines.
- Bending stress, tensile forces and shear forces at each position of the nodal geometry
- Reaction loads at the stinger rollers
- Seabed touchdown point
- Hoop and equivalent stressThe LAYS module provides full tabulated outputs. The LAYS module is supplied with comprehensive theoretical and validation documentation.
- Bending stress, tensile forces and shear forces at each position of the nodal geometry
- Reaction loads at the stinger rollers
- Seabed touchdown point
- Hoop and equivalent stressThe LAYS module provides full tabulated outputs. The LAYS module is supplied with comprehensive theoretical and validation documentation.
- Oil / gas / water ratio;
- Quantities of CO2, H2S and O2 present;
- Pressure and temperature;
- Salinity;
- Acidity;
- Flow velocity;
- Bacteria;
- Dissolved solids;
- Undissolved solids.
- determination of the configuration of the pipe from the freeboard to the seabed;
- calculation of the forces and moments at each of the nodal points along the pipe;
- calculation of the bending, longitudinal and equivalent stresses induced at the nodal points and highlighting where the maximum stresses occur;
- calculation of the minimum tension required to lay the pipeline.
Bending Moment-Curvature Relationships Critical Buckling Curvature Pipe Configuration on the Reel
- Provide data for screening of observed span length
- Evaluate allowable span length
- Static stresses due to bending under lateral loads in the extreme storm conditions. The loading on the span includes self weight, buoyancy and maximum steady state hydrodynamic loading
- Assessment of the risk of vortex-induced vibrations by the use of simple “reduced velocity” method.
- Determining concrete thickness for a pipe specification;
- Determining wall thickness to achieve a specified safety factor;
- Determining a safety factor for a specific pipe input
- Batch processing several analyses for different water-depths, currents and wave profiles.
- Determine concrete thickness for a pipe specification;
- Determine a required wall thickness to ensure stability;
- Calculate the safety factor between submerged weight as specified and that required for stability.
- Determine whether the pipeline is susceptible to upheaval buckling;
- Evaluate the required height of backfill to prevent upheaval buckling.
- The Pipeline is trenched for protection, therefore preventing lateral movement;
- Submerged weights are low since concrete is often necessary for stability;
- The contents temperatures are high and Pipeline flexibility is high.
- The UPBK module enables the engineer to quickly and easily carry out upheaval buckling calculation. This in turn allows flexibility in conceptual design and assessment of the pipeline for a range of operational and environmental conditions.
- API 1111 (2009, Errata 2011) – American Petroleum Institute (Design of Offshore Hydrocarbon Pipelines);
- ASME (B31.4: Liquid, B31.8: Gas) – American Society of Mechanical Engineers, Pipeline Transportation Systems for Liquid Hydrocarbons & Gas
- Transmission and Distribution Piping Systems;
- DNV 1981 – Det Norske Veritas (Rules for Submarine Pipeline Systems);
- BS PD8010 (2004) – Code of Practice for Pipelines (Part 2: Subsea Pipelines);
- BS8010 (1993) – British Standard, Code of Practice for Pipelines Part 3 (Pipelines Subsea).
- Calculate the minimum wall thickness for each of the selected design code requirements (hoop stress, hydrostatic collapse, buckle propagation, diameter to thickness ratio);
- Select the minimum wall thickness that will comply with all the selected design code requirements;
- Recommend the nearest API pipe size that will comply with all the selected design code requirements.
- Calculate the thermal, pressure, frictional and total strain at each node along the pipeline;
- Calculate the displacement of both the hot and cold ends of the pipeline (this takes into account the variation of temperature and pressure profile along the length);
- Calculate the maximum and minimum stresses at the nodal points.
Más información sobre este producto consulte en: http://www.penspen.com/capabilities/services/software-tools/plusone/modules/full-package/