Petro China Research Institute of Petroleum Exploration & Development,Beijing 100083,China;
Petro China Research Institute of Petroleum Exploration & Development,Beijing 100083,China;
Petro China Research Institute of Petroleum Exploration & Development,Beijing 100083,China;
Drilling & Production Technology Research Institute,Petro China Qinghai Oilfield Company,Dunhuang 736202,China;
Drilling & Production Technology Research Institute,Petro China Qinghai Oilfield Company,Dunhuang 736202,China;
Petro China Research Institute of Petroleum Exploration & Development,Beijing 100083,China;