The subsea vessels are costing CNY 200m ($32.22m), Asian reports said.
They will travel at up to 14 knots.
Delivery is set for the second and third quarter of 2015.
Tongfang Jiangxin Shipbuilding of China has clinched a contract for two exploration ships for China Oilfield Services (COSL).
The subsea vessels are costing CNY 200m ($32.22m), Asian reports said.
They will travel at up to 14 knots.
Delivery is set for the second and third quarter of 2015.