Abstract: In order to ensure the intensive injection, production and safe operation of the Shuang 6 storage in Liaohe Oilfield during the peak shaving period, taking Well SL1 as an example, the injection-production capacity of the Shuang 6 storage was evaluated by considering three factors including safe formation pressure of 10−24 MPa, erosion resistance of injection-production string, and formation liquid-carrying capacity. During the period of “four injections and four productions” from 2017 to 2020, the tests for determining well productivity were carried out continuously, the flow pressure and gas injection-production volume were monitored, and the binomial productivity equation was established to calculate the limit gas injection-production volume under different formation pressures. The critical erosion flow rate and critical liquid-carrying flow rate of the Ø114.3 mm gas-sealed injection-production string was calculated, and the safe injection-production system of a single well was determined. Summarizing the change law of formation pressure in Well SL1 with the cumulative gas injection (production) volume, it is predicted that the safe cumulative gas injection volume of the well ranges from 0.942×10⁸ m³ to 2.713×10⁸ m³. After the storage area is connected and reaches a unified pressure system, it is predicted that only when the safe storage capacity of the Shuang 6 storage ranges from 7.623×10⁸ m³ to 34.510×10⁸ m³, can the formation pressure and gas injection-production capacity meet the safe operation requirements of the storage.