[1]Key Laboratory of Underground Storage of Oil and Gas Engineer of China National Petroleum Corporation;
Langfang 065007;
China;
[2]PetroChina Southwest Oil & Gas Field Company;
Chengdu 610051;
China;
[1]Key Laboratory of Underground Storage of Oil and Gas Engineer of China National Petroleum Corporation;
Langfang 065007;
China;
[3]PetroChina Research Institute of Petroleum Exploration and Development;
Langfang 065007;
China;
[4]CNPC Drilling Research Institute Corporation;
Beijing 100195;
China;
[5]PetroChina Planning Research Institute;
Beijing 100083;
China;
[6]CNPC Tubular Goods Research Institute;
Xi’an 710065;
China;
[1]Key Laboratory of Underground Storage of Oil and Gas Engineer of China National Petroleum Corporation;
Langfang 065007;
China;
[3]PetroChina Research Institute of Petroleum Exploration and Development;
Langfang 065007;
China;
gas field storage; trap dynamic sealing capacity; key index design; effective storage volume; drilling and completion in ultra-deep and ultra-low pressure formation; alternating load; surface engineering; core equipment; risk assessment and control;