抖阴短视频

HOUSTON: Saudi Aramco supplies the environmentally cleanest oil to China, the biggest energy consumer in the world, according to a recent scientific study.
A research paper by Nature Energy, a publication of Stanford University in the US, compared the greenhouse gas (GHG) emissions from 13 big oil producers that shipped crude oil to China.
The results showed that Saudi crude had the lowest average carbon intensity when processed and used by Chinese industry, meaning that it produced fewer environmentally harmful emissions than other suppliers.
Venezuela sold China the 鈥渄irtiest鈥� oil, according to the study, followed by Iran and Iraq, the researchers found.
Oil industry experts said that the findings reflect not only the higher quality of Saudi crude, but also the efficiency of the technology used to get the crude from reservoirs to shipment.
The study was highlighted at the CERAWeek by IHS Markit event in Houston, Texas. Amin Nasser, chief executive of Saudi Aramco, said: 鈥淣ot all crudes are equal, and (the research shows that) 抖阴短视频 has among the lowest carbon intensities of crude production in the world.鈥�
The researchers said: 鈥淥ilfields in 抖阴短视频 showed the lowest average GHG intensities due to highly productive reservoirs (high productivity index), low water production (leads to lower mass lifted and less energy expenditure in separation per unit of oil extracted) and low flaring rates.鈥�
Ahmad Al-Khowaiter, Aramco鈥檚 chief technology officer, said that the findings showed the value of the big research and development program that the Saudi national oil company has made one of its main business priorities.
鈥淚t is good business, not just good environmental practice. We are the lowest cost producer, and the lowest emissions producer. It will help achieve sustainability through greater energy efficiency,鈥� he said.
China is the biggest oil consumer in the world, but is also a major environmental polluter, mainly because it continues to use local coal as its main energy source.
The CERAWeek event has sought to understand the country鈥檚 new attitude toward the environment, dubbed 鈥渕aking China skies blue again鈥� by the government.
Mikael H枚枚k, an energy scientist at Sweden鈥檚 Uppsala University, said: 鈥淒ocumenting the emissions and net energy of a crude supply could be essential to meeting national emission and energy security targets.
鈥淭he data presented by Nature Energy indicates that the impact of replacing or phasing out just the most carbon-intensive 10 percent of Chinese oil imports could be significant 鈥� not just for continuing climate-informed energy strategies but also for geopolitical and energy security reasons, such as avoiding potentially risky suppliers in regions with security concerns.
鈥淚mproved understanding of Chinese oil policies and import preferences are, therefore, vital for modeling emission trends on local and global scales with a nuance that can inform policy realistically,鈥� he said.