China's self-developed submarine seismic exploration sensor Haimai, or "Sea Pulse," completed its first work area in the Bohai Sea, China Media Group (CMG) reported on Saturday.

As the country's first node-mode undersea seismic data exploration and acquisition equipment, Sea Pulse is able to capture seismic wave signals equivalent to 1/150 of the sound of mosquito flight at a depth of 10,000 meters, ensuring high accuracy in helping detect seabed geologic structure.

It completed a 3D geological exploration covering 104 square kilometers in the Bozhong 8-3 work area over 40 days.

During the operation, thousands of the node acquisition equipment were regularly deployed at the designated locations through cables, forming a vast data collection network covering the seabed.

They integrated equipment including high-sensitivity detectors and ultra-low noise acquisition circuits, greatly improving the detection ability of weak signals, Li Zeshan, engineer at the Sea Pulse operation team, told CMG.

These devices served as stethoscopes, receiving seismic wave signals reflected from the seabed and storing them in the form of data. After the operation was completed, the devices were retrieved, and the data collected was downloaded, analyzed and processed into seismic profiles, which ultimately produced a clear image of the seabed.

A total of 6,000 node acquisition equipment were put into operation this time, which obtained high-definition information of the oil and gas reservoir there.

Sea Pulse was put into operation in July, marking a major breakthrough in the country's technological development of high-end offshore oil and natural gas exploration.