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† Enhanced Oil Recovery Research Institute, China University of Petroleum, Beijing 102249, China ‡ China University of Petroleum−Beijing at Karamay, Karamay, Xinjiang 834000, China Article Views are ...

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We break down the only 5 pens you'll actually need to take an idea from your head to the page—from the workhorse fineliner to the problem-solving white gel pen. It’s time to stop collecting and start ...

† School of Petroleum Engineering, State Key Laboratory of Heavy Oil, China University of Petroleum (East China), Qingdao, Shandong 266580, People’s Republic of China ‡ China National Offshore Oil ...