<< Click to Display Table of Contents >> Navigation:  PipeLay > Example PipeLay Models > Example 04 - Recovery >
Introduction & Example Files

Introduction

Note

This example is simplified in PipeLay Starter Edition where there is no bending strain or tip separation criteria available. If you are using Starter Edition then you should ignore certain aspects of this article, in particular parts of the ‘Results’ section.

 

Example 4 simulates a recovery scenario. This example considers a pipeline being raised from the seabed to a lay vessel via a winch cable.  The lay vessel is equipped with an S-Lay stinger fitted with V-shaped rollerboxes. The pipe is restrained by a tensioner on the vessel deck. The analysis procedure is performed as a series of 15 static installation stages where the winch cable is paid-out in finite increments while the vessel simultaneously surges forward. A maximum bending strain of 0.242 % in the pipe section and a maximum tip separation of 0.9 m are used as the installation criteria for all 15 stages. The two figures below illustrate the recovery process. The first figure shows the initial configuration while the second shows the final configuration. This example is the reverse procedure to the recovery scenario modelled in Example 3

 

Back to Overview

 

Example Files

The input files for this example may be found in the directory ‘Example 04 – Recovery’, which is located in the Examples subdirectory of your PipeLay installation directory. The input files are as follows:

Back to Overview