Patent ID: 6019058
Filing Date: 2000-02-01
Classification: B63B

Abstract:
A method of replacing an existing looped mooring line extending from a vessel to subsea anchor means, the looped mooring line extending about a sheave adjacent the subsea anchor means and having opposed ends removably connected to a mounting member on the vessel for securing the ends of the existing mooring line; said method comprising the following steps:attaching first and second tie-back members to the existing mooring line adjacent respective first and second ends of said existing mooring line;slackening said mounting member until the existing mooring line is secured by said tie-back members thereby to provide an untensioned end portion of the existing mooring line adjacent said tie-back members;connecting a first end of a new looped replacement line to a first end of the untensioned end portion of said existing mooring line;connecting pulling means to the second end of said existing mooring line;disconnecting said first and second tie-back members from said first and second ends of said existing mooring line;then pulling in said existing mooring line by pulling in said second end of said existing mooring line with said new replacement line connected to said first end of said existing mooring line until said new line is looped about said sheave and has opposed ends on said vessel;then connecting first and second tie-back members to said new replacement line adjacent first and second ends of said new line where said first end of said new line is connected to said first end of said existing mooring line to provide an untensioned end portion of said new line adjacent said existing mooring line; andthen disconnecting said existing mooring line from said new replacement line.