中国石油石油勘探开发科学研究院
Research Institute of Petroleum Exploration and Development
PetroChina
中国石油石油勘探开发科学研究院西北分院
Research Institute of Petroleum Exploration and Development
northwest institute
northwest sub-institute
northwest branch
PetroChina
中国石油石油勘探开发研究院
Petroleum Exploration and Development Research Institute
PetroChina
beijing
当代石油石化
petroleum & petrochemical today