China discovers major oilfield in South China Sea

Situated about 170 km from Shenzhen in south China's Guangdong Province, the oilfield sits at an average water depth of 100 meters. Test drilling has yielded a daily production of 413 barrels of crude oil and 68,000 cubic meters of natural gas, demonstrating its potential.

According to the company, offshore oil and gas exploration in deep to ultra-deep layers faces multiple challenges, including high temperatures, high pressures, and complex conditions.

Meanwhile, clastic reservoirs, an important component of deep-sea hydrocarbon deposits, generally have low permeability, making the identification of large oil and gas fields more difficult.