China's discovery in the southeast waters of Hainan Island, Lingshui 36-1 gas field new proven reserves on the 7th through the relevant departments of the state review for the record, the natural gas proven geological reserves of more than 100 billion cubic meters, for the world's first ultra-deepwater ultra-shallow large gas field. So far, China in the Yinggehai, Qiongdongdong, Pearl River Estuary three basins cumulative proven natural gas geological reserves of more than 1 trillion cubic meters, help national energy security.
At present, ultra-shallow gas is an important oil and gas resources in deep water, generally refers to the depth of burial less than 300 meters of natural gas, exploration and development is faced with buried ultra-shallow preservation is difficult, away from the hydrocarbon source of filling is difficult, loose strata drilling is difficult and other problems.
"We launched research on the mechanism of shallow gas formation and key technologies of engineering operations, and selected Lingshui 36-1 block, which is located in the southern part of the Central Depression of the Southeast Basin of Hainan Island, with an average operating water depth of 1,500 meters, as the exploration target." China National Offshore Oil Corporation Chief Geologist Xu Changgui said, Lingshui 36-1 gas field exploration practice, revealing the impact of drilling and completion operations from the safety of the "disaster gas" into a clean energy with the development value of the possibility of resource exploration and development of similar sea conditions of guiding significance.
The successful exploration of this gas field has also further improved China's independently established technology system for exploration and development of deepwater complex oil and gas resources, and verified its advancement and reliability.
