China's Deep Sea No.1 Gas Field Achieves Record Oil And Gas Output For Energy Security
China has achieved a significant milestone with its first self-developed, ultra-deepwater gas field, Deep Sea No.1, also known as Shenhai Yihao, reaching a significant natural gas output of more than 9 billion cubic meters and an oil output surpassing 900,000 cubic meters. This achievement underscores China's capabilities in tapping into deep-sea energy resources, which plays a crucial role in enhancing the country's energy security.
Deep Sea No.1, which commenced operations on 25th June 2021, is situated 150 kilometers off the coast near Sanya, in the southern province of Hainan. This location allows it to function at depths exceeding 1,500 meters, making it the deepest operational gas field within China. The operation of this gas field marks a significant step forward in China's pursuit of energy independence and technological advancement in offshore drilling.

The China National Offshore Oil Corporation (CNOOC), responsible for the development of this gas field, has announced plans to further increase its output capacity. Through the completion of the phase II project aimed at upgrading the facility, Deep Sea No.1's peak annual output is expected to rise from 3 billion cubic meters to 4.5 billion cubic meters. This expansion will further cement the gas field's role as a pivotal source of natural gas for China, contributing significantly to the nation's energy security.
The phase II project encompasses the addition of 12 deepwater gas wells and a comprehensive processing platform that weighs more than 14,000 tonnes. Additionally, it includes the installation of five submarine pipelines, which collectively span approximately 250 kilometers. Notably, this project has uncovered natural gas reserves estimated at over 50 billion cubic meters, highlighting the vast potential of Deep Sea No.1 in meeting China's growing energy needs.
The successful development and operation of Deep Sea No.1, China's first ultra-deepwater gas field, not only demonstrates the country's growing self-sufficiency in energy production but also signifies a major advancement in its offshore drilling technology. The ongoing expansion through the phase II project promises to further enhance its output, playing a crucial role in supporting China's energy security in the years to come.