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Pre-drilling engineering cost management in the background of two new laws
Wang Yaozhi;Luo Jie;Guo Ruiying;Li Yadong;Exploration Business Department of PetroChina Southwest Oil & Gasfield Company;Capital Construction Project Department of PetroChina Southwest Oil & Gasfield Company;Exploration and Development Research Institute of PetroChina Southwest Oil & Gasfield Company;
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