Research Institute of Petroleum Exploration & Development-Northwest PetroChina Lanzhou 730020 China;
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation CUT Chengdu 6 10059 China;
College of Geophysics Chengdu University of Technology Chengdu 610059 China;
State Key Laboratory of Petroleum Resources and Prospecting CUP(Beijing) Beijing 102249 China;