China National Petroleum Corporation (CNPC) has started drilling an ultra-deep well with a designed depth of 10,520 meters (6.5 miles) in the Sichuan province, news agency Xinhua reports. The ultra-deep well is targeting natural gas and is located in the northwest of the Sichuan Basin. There are multiple sets of high-quality reservoirs superimposed in the ultra-deep layers of the region, the Chinese media reported. Earlier this year, oil drillers in China set a record for well depth, drilling 9,396 meters (30,827 ft or 5.8 miles) into the ground…
