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Home > Expertise fields > Software products > Deeplines

Global analysis of risers, moorings and flowlines

Presentation

DeepLines® : Global Analysis of Risers, Moorings and Flowlines.

Based on PRINCIPIA’s and IFP’s experience in risers and hydrodynamics, DeepLines® has been developed to provide engineering and oil companies with an integrated tool to design and optimize their riser, flowline and mooring systems for shallow to deepwater offshore projects.

Applications

All flexible risers, umbilicals, and floating hoses configurations,
Rigid production (SCR) and drilling risers,
Hybrid riser concepts,
Mooring lines (catenary, taut, synthetic,..) and multi-bodies offshore systems,
Pipeline and flowline laying and stability,
Towing systems,
Subsea equipments installation.

DEEPLINES in Brief (643.2K)

Main features

Powerful and robust finite element method including bending/torsion coupled effects, nonlinear beam laws (elastoplastic, hysterisis,..), thermal loads.
Quasi-static analyses,
Full 3D time domain dynamic analyses,
Modal analysis including multi-bodies systems,
Graphical user interface (GUI) for pre- and post-processing including animation,
Output for risers, moorings and floating supports: tension, stress, curvature, built-in angles, tensioner strokes, deformed shape…, compatible with Excel
Batch command for launching analysis and output requests.

Specific features

Coupled analysis
Multi-bodies fully coupled analyses with risers, mooring, and any other connections (yoke…)

Wind, current and wave loads on a floating body,
Low frequency analysis (with Newman’s approximation for waves loads),
Wave frequency coupled analysis with regular or irregular waves.

Contact
Full range of contact features,

Sliding contact with a beam inside another beam (pipe-in-pipe, keel-joint,…,
External contact between beams (clashing…),
Contact with any surface defined by triangular elements, fixed or moving (soil, moonpool…),
Anisotropic friction law,
Non-linear contact stiffness, suction effect with soil shape change
Automatic detection of proximity and generation of contact elements.

DeepVIV module

Prediction tool of Vortex-Induced Vibrations,
Static and modal pre-analysis,
Lock-in zones and structural response amplitude,
VIV fatigue estimate based on SN curves,
Modified drag coefficient,
Analysis of anti-VIV devices.

DeepVIV in Brief (222K)

DeepFatig module

Post-processor to determine the fatigue life of a riser,

Based on the summation of damage due to various sea-states with their probability of occurrence,
Spectral analysis based on regular wave time-domain analyses; Stress RAO extracted from time series.
Rainflow method for irregular waves,
Damage calculated along the riser at several points on the circumference.

Download

Setup application and release guides for DeepLines may be downloaded directly from the links below. It is advised that you read through the installation guide before running the setup so as to make sure that the software will be properly installed on your machine.

Installing the software without license file can be useful for model verification purposes or presentation of results to your clients. The user interface could still be opened without any valid license file, however you will not be able to save any changes to your models or perform analyses with the FE engine.

Reference

Certified by Bureau Veritas based on

Comparison with general theoretical analytical
Solutions for beams & cables behavior
Comparison with in-situ measurement and full scale model test (flexible)

Continuously validated

In - situ Measurements
Girassol CALM buoy 6 d.o.f motions
STRIDE JIP for VIV

Model tests trough projects or JIPs

JIP High Compliant Riser (Bechtel)
JIP Calm Buoy

Licences : more than 50 licenses worldwide

TECHNIP Group - Worldwide
SAIPEM - Paris
ACERGY Group - France
TOTAL - France
JP JENNY - Aberdeen
DORIS ENGINEERING - France
DORIS ENGINEERING - Brazil
BUREAU VERITAS - France
SEAL ENGINEERING - France
IFREMER - France
IFP - France
Ecole Centrale Marseille - France
Ecole Centrale Nantes - France

Complete offshore system

Disconnection scenario