Institute of Computer Technology;
Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development;
Lanzhou 730020;
China;
Institute of Computer Technology;
Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development;
Lanzhou 730020;
China;
Institute of Computer Technology;
Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development;
Lanzhou 730020;
China;
Institute of Computer Technology;
Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development;
Lanzhou 730020;
China;