US 11,972,879 B2
Method of sealing off a cut off end of a subsea cable section
Tim Van Keulen, Papendrecht (NL); Rob Rudolf Theodorus Oor, Papendrecht (NL); and Emiel Van Weenen, Papendrecht (NL)
Assigned to BAGGERMAATSCHAPPIJ BOSKALIS B.V., Papendrecht (NL)
Appl. No. 17/045,639
Filed by Baggermaatschappij Boskalis B.V., Papendrecht (NL)
PCT Filed Apr. 9, 2019, PCT No. PCT/NL2019/050211
§ 371(c)(1), (2) Date Oct. 6, 2020,
PCT Pub. No. WO2019/199164, PCT Pub. Date Oct. 17, 2019.
Claims priority of application No. 2020736 (NL), filed on Apr. 9, 2018.
Prior Publication US 2021/0158993 A1, May 27, 2021
Int. Cl. H01B 13/32 (2006.01); H01B 7/14 (2006.01); H01B 7/282 (2006.01); H01B 13/22 (2006.01); H02G 15/00 (2006.01); H02G 15/04 (2006.01)
CPC H01B 7/2825 (2013.01) [H01B 7/14 (2013.01); H01B 13/22 (2013.01); H01B 13/32 (2013.01); H02G 15/003 (2013.01); H02G 15/043 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method for watertightly sealing off an exposed cut off end of a subsea cable, the subsea cable comprising a plurality of cores and jackets contained within an outer jacket, the method comprising:
applying an at least partly mouldable sealant to the exposed cut off end of the subsea cable, the at least partly mouldable sealant being mouldable at ambient temperature; and
allowing the at least partly mouldable sealant to cure or set such that the at least partly mouldable sealant is arranged to prevent water from entering the subsea cable and/or prevent water from contacting the plurality of cores;
wherein the at least partly mouldable sealant connects to and seals exposed ends of the jackets, and wherein the at least partly mouldable sealant is allowed to cure or set such that after curing or setting, a shape of the sealant is retained even in a sub sea environment, below a surface of the water.