SPM hawsers made with dyneema®

- A robust solution for offshore monsoons

During the monsoon season, offshore production platforms face significant challenges. High winds generate large waves, creating intense water currents that stress mooring systems. These forces can cause severe wear and tear, leading to potential failures of critical components like mooring lines, anchors, and hawsers. Breakages in Single Point Mooring (SPM) hawsers during these turbulent conditions can result in catastrophic consequences, including equipment damage, production shutdowns, or even environmental hazards.

Monsoons: A serious threat to offshore moorings

Monsoons cause dramatic storm surges and towering swells, significantly increasing wave height. These conditions destabilize offshore platforms, buoys, and anchored vessels, posing risks of collisions, capsizing, and severe damage. Moreover, turbulence caused by monsoon winds mixes different layers of water, leading to unexpected stress on mooring lines, as currents move in varying directions and speeds.

In one recent case, an offshore production rig experienced a breakage of an SPM hawser during the monsoon season, putting the entire operation at risk. The production was forced to shut down, which led to costly delays.

Dynamica Ropes’ rapid response with high-strength grommets

Faced with this urgent challenge, the customer needed a reliable solution to resume production as quickly as possible.

Dynamica Ropes provided an emergency replacement for the broken SPM hawser in the form of two high-strength grommets made with 88mm Dyneema^® SK78 rope.

These grommets, each with a length of 70 meters and seized thimbles at both ends, had a Minimum Breaking Load (MBL) of 1,000 tons.

Tested and proof-loaded in our in-house testbed before departure.

Thanks to Dynamica Ropes’ quick response, the custom grommets were produced and delivered by air freight in just a few days.

The customer was able to resume production without further losses, demonstrating the importance of fast, reliable solutions in critical offshore applications.