Chinese scientists have set a new record by reaching a drilling depth of 750 meters on the Qinghai-Xizang Plateau, during the country's second comprehensive scientific expedition to the hinterland of the plateau.
The team led by academician Fang Xiaomin from Chinese Academy of Sciences (CAS) is currently carrying out a resource and environment research project in the Lunpola Basin, which is the first proven oil-producing basin on the Plateau.
Overcoming a series of difficulties brought by the harsh high-altitude environment, the team managed to reach more than 750 meters below the surface.
With an average altitude of 4,600 meters, the Lunpola Basin has accumulated the most continuous Cenozoic strata of the plateau dating back for 55 million years, which makes it a key region for studying the plateau's tectonic features, climate, biology and ecology as well as their co-evolution.
The rock samples taken from deep down the earth not only record the history of tens of thousands of years of geological and climate changes on the Qinghai- Xizang Plateau, but also reveal the distribution of energy in the stratum.
"This gray-green section with continuous layered patterns is conglomerate. This part of red sedimentary rock represents the arid climatic conditions of the subtropical high-pressure zone. And this part, with many beautiful layers, is carbonate rock, and over here, it may contain some white-jade marble or gypsum. Further down is what, I just mentioned, was produced from the tropical environment. We also successfully drilled it out. The oil shale from that time has now transformed into heavy oil, indicating that the biological climate was very rich and humid, with high plant diversity and significant organic sedimentation. It's the most important oil and gas-bearing layer in the Lunpola Basin, which is the first basin on Qinghai-Xizang Plateau where we have drilled an oil outlet," Fang explained to China Central Television reporter.
The scientist said the ongoing drilling is expected to provide an important scientific basis for the simulation and prediction of the impact of global warming and the ecological environment protection on the Qinghai-Xizang Plateau, the formation of hydrocarbon source rocks, and the exploration and development of salt lake resources.
"We have designed a drilling depth of 1,500 meters, but we will reach 1,000 meters first. If all goes well, we will drill deeper to 1,500 meters. This mission is the first of its kind globally to drill so deep, more than 1,000 meters, in the core of the hinterland on a plateau," said Fang.
Chinese scientists set new drilling record on Qinghai-Xizang Plateau
Chinese scientists set new drilling record on Qinghai-Xizang Plateau
More users of new energy vehicles (NEVs) are hitting the road during this year’s National Day holiday, as an expanded public charging network in China is significantly alleviating range anxiety for drivers.
Since Tuesday, the first day of the week-long holiday, expressways in east China's Jiangsu Province have seen daily traffic exceed 150,000 vehicles, with nearly 10 percent being NEVs. In Taizhou City, a service area reported all 12 charging piles occupied around 14:00 on Wednesday.
"The number of charging piles has doubled, and they are all fast chargers. What's even more reassuring is that the staff are always here to serve us, which really eases my range anxiety," said Meng Haoyang, a NEV driver.
Similar scenes were observed in Anhui Province, where electric vehicles are arriving for charging every ten minutes at a service area equipped with 16 functioning charging piles available around-the-clock.
"It is quite convenient to charge our vehicles here since there are staff providing full service, which reduces our waiting time," said Jiang Hao, another NEV driver.
A famous tourist attraction, the Shimen Village in Wuyuan County, Jiangxi Province has drawn an increasing number of visitors going on holiday via electric vehicles, thanks to the construction of a new EV charging station.
"It is very convenient. The car is parked outside being charged while we're enjoying our tour around the village. Things can be done simultaneously without delay," said a tourist Wan Qian.
Data from the State Grid's smart vehicle networking platform showed EV charging volume at expressway stations reached a record 15.58 million kilowatt-hours during the first two days of the holiday, up 56 percent from the same period last year.
Local authorities are actively fostering a user-friendly environment to accommodate the surge in EV traffic.
In Pinghu City, Zhejiang Province, three mobile charging stations have been added to a service area on the busy Shenyang-Haikou Expressway to resolve drivers' range anxiety and offer more flexible charging options.
"We have prepared mobile charging piles in service areas with large traffic and charging demand for the holiday, guiding drivers to charge in an orderly and fast manner," said Zhu Zhenyuan, a staff member from the State Grid Pinghu Power Supply Company.
The coverage of charging stations has been further expanded across the country.
In Hanzhong, Shaanxi Province, charging facilities are available in all service areas and tourist attractions.
In Xiaogan, Hubei Province, 600 villages and rural scenic spots have been equipped with charging stations during this holiday, greatly facilitating tourist trips and family visits for EVs owners.
Expanded charging network boosts NEV use during National Day holiday
