China's First Deepwater High-Pressure Gas Field 'Deep Sea One' Phase II Completed and Put into Production

TapTechNews September 27th news, after 9 years of exploration and development, the China's first deepwater high-pressure gas field, Lingshui 25-1 and the Deep Sea One Phase II natural gas development project (referred to as Deep Sea One Phase II) in the southeast sea area of Hainan Island has been completed and put into production as scheduled today.

TapTechNews learned that this marks China's complete conquest of the world-class problem of deepwater high-pressure oil and gas reservoir development, and the deepwater complex oil and gas resources development ability has ranked among the world's advanced.

The peak annual output of natural gas in the Deep Sea One Phase II is more than 1.5 billion cubic meters, so the entire Deep Sea One ultra-deepwater large gas field will increase the peak annual output by 50%. It is of great significance for ensuring national energy security and improving the overall level of China's deep-sea resources development.

The Deep Sea One Phase II is developed in the Lingshui 25-1 block about 70 kilometers away from the Deep Sea One energy station. It is the deepest water gas field with the highest formation temperature and total well depth independently developed and constructed in China so far. The gas field is buried in the water depth of nearly 1000 meters and the formation depth of more than 4000 meters. The highest formation pressure is equivalent to 1000 times that of a household pressure cooker, and the temperature reaches 138 degrees Celsius. Developing this gas field is a world-class difficulty.