北京奥凯立科技发展股份有限公司
The company has been dedicated to the research, development, and manufacturing of oilfield chemicals for over 40+ years. Its product portfolio covers five major series: drilling fluid additives, cement slurry additives, oil-recovery additives, acidizing & fracturing additives, and water-treatment additives. It serves major domestic oilfields and exports to over 30 countries.
Website：www.ocl.com.cn