Identification method of key risk factors of oil and gas reservoir-type underground gas storage in design period based on C-FRAM
The design work of oil and gas reservoir-type underground gas storage centers on the function re-alization in the operation stage and the corresponding reconstruction and addition tasks in the construction stage.The deviation of gas storage design in the early stage may have a profound impact on the construc-tion and even after operation and production.The functional module resonance method is mainly used to an-alyze the propagation path of disturbance in the system.First,due to the large amount of integrated infor-mation and wide span required in the design period of gas storage,to consider the influence of each func-tional module in the complex network,analysis method of system functional resonance considering function module centrality was proposed.Then,taking Xiangguosi gas storage in Chongqing as an example to carry out case analysis,the results show that introducing modular system centrality is helpful to correct the rank-ing of key risk factors.Finally,some suggestions are given on the scale deployment of gas storage in the de-sign period,the demand of peak regulating supply,the geological implementation scheme,and the utilization of old wells.The results indicate that incorporating the centrality of functional modules into the system aids in refining the prioritization of key risk factors during the design period of gas storage.
oil and gas reservoirunderground gas storagedesign periodrisk factor identificationfunction-al resonance analysis method(FRAM)