Recently, the deep-water plough ditching machine purchased by cnooc shenzhen company was delivered to the port of chiwan oil base. This is the world's largest deep water plough trench excavator. The equipment is 21.2 meters long, 11.8 meters wide and 9.7 meters high, with a net weight of about 180 tons. It is mainly used for digging ditches in deep-water oil and gas pipelines.

Ditching machine including 180 tons of the plough type trencher ontology and release system, and system including A crane, AHC (active heave compensation), umbilical cord cable winch, power station, the control room, etc., which can realize plough type trencher smooth down and recycle of the ontology. A crane is about 26 meters high and the safety load is 260 tons. AHC can greatly reduce the influence of the destructive sea condition on ditching operation and ensure the safety and reliability of the operation.

Trenching is a kind of protection for submarine pipeline, which can effectively protect the sea pipe from external forces. The introduction of plough trenching machine has filled the gap of large deep water trenching equipment in China, which is conducive to improving the company's deep water operation ability and international market competitiveness.