Based in Dongying, where Shengli Oilfield , China ’s second largest oilfield, is located, Kerui is a professional and international industrial group committed to petroleum equipment, EPC turnkey projects and oilfield service. Based on over-50-year large-oilfield development experience accumulated in Shengli Oilfield, Kerui has unique advantages in terms of technology, talent, R&D and other aspects.