We are the main supplier of offshore geophysical exploration services in China, occupying the vast majority of the Chinese offshore geophysical exploration service market. At the same time, our operations cover sea areas in Southeast Asia, Europe, the Arctic, the Americas, Africa, and the Middle East. We have provided high-quality services to many oil companies around the world and received praise from customers.

 We operate 10 ships of our own, including 5 3D streamer ships and 5 OBS (OBC+OBN) ships. In addition, we lease 2 modular source ships and 1 3D streamer ship, and have 1 land team. We have the operational capabilities of offshore streamer, OBC, OBN, and land seismic acquisition to meet the needs of customers under different geological conditions in different exploration and development stages on land and sea. With advanced equipment, an excellent team, and rich global operation experience, COSL's annual seismic acquisition capacity can reach 35,000 square kilometers in 3D and nearly 5,000 square kilometers for OBC/OBN.

Main business scope:

2D/3D conventional seismic exploration data acquisition, 2D/3D high-resolution seismic exploration data acquisition, broadband seismic exploration data acquisition, wide azimuth/multi-azimuth seismic exploration data acquisition, OBC/OBN 3D seismic exploration data acquisition, streamer-node hybrid seismic exploration data acquisition, 4D seismic exploration data acquisition, gravity and magnetic data acquisition, 2D/3D land seismic acquisition.