A Damen DOP250 has successfully completed a job near Safaniyah Pier, Saudi Arabia, which included excavation of two 48” oil pipeline located in the surf zone.
Both pipelines were to be exposed for inspection and then sleeving during a critical shutdown of the main trunkline.
At the nearshore location, only 10 m from shore, the pipeline was 5 m below the sea bed – no problem for the DOP250.
The pipeline was excavated and exposed ahead of schedule using the jet water assisted sand mining head. This allowed more time during the shutdown to perform the repairs.
The DOP250 has been delivered together with a MultiCat1908, fit for working in such shallow waters.
The mined sand was pumped to a nearby temporary storage location.
After the necessary inspection and repairs to both pipelines, the DOP250 returned the sand from the stock pile to both locations, backfilling the pipelines.