Contamination effects of drilling fluid additives on cement slurry
Zheng Youzhi;She Chaoyi;Yao Kunquan;Guo Xiaoyang;Zhang Huali;Yang Tao;Li Ming;Gas Production Engineering Research Institute of South-west Oil & Gasfield Company;Petro China;Gas Production Engineering and Technology Research Institute;National Energy R & D Center of High-sulfur Gas Reservoir Exploitation;Engineering and Technology Supervision Department of South-west Oil & Gasfield Company;PetroChina;School of Material Science and Engineering;South-west Petroleum University;
..............page:76-81
On natural gas pricing reform in China
Hu Aolin;Dong Qing;Research Institute of Natural Gas Economy;Southwest Oil & Gasfield Company;PetroChina;Logistic Services Division of Southwest Oil & Gasfield Company;PetroChina;
..............page:99-106
..............page:107-116
..............page:117-125
..............page:126-131