CNPC Xibu Drilling Engineering Co.
Drilling Technology Research Institute of PetroChina Daqing Drilling Engineering Company
No.6 Drilling Engineering Company
Chemical Industry Geotechnical Engineering Limited Company
Daqing Oilfield Engineering Limited Company
Hubei Xingye Geological Engineering Company Limited
CNPC Drilling Research Institute
中国石油集团钻井工程技术研究院钻井机械研究所
中国石油集团钻井工程技术研究院
CNPC Bohai Drilling Engineering Co.
中国石油渤海钻探工程有限公司第六钻井工程分公司
渤海钻探工程公司测井公司
Western Drilling Engineering Corporation of CNPC
Chinese Continental Scientific Drilling Engineering Center
drilling engineering accident
drilling engineering data logging unit
Drilling engineering design
drilling engineering parameter
Great Wall Drilling Company Geoscience Center
Huanghe Drilling Engineering General Company of Shengli Oilfield