对气田区进行沉降监测及储层参数反演可为气田安全生产防护、开采规划提供重要支撑信息。以涩北气田区为研究对象，利用SBAS-InSAR方法调查了其于2022年2月—2023年9月期间的地表沉降演化特征，进一步以InSAR监测结果为观测量，通过长椭球模型反演了气田储层中心投影坐标、深度、走向等参数信息。结果表明，涩北气田区中台南气田、涩北1号、2号气田均出现沉降漏斗，年均沉降速率分别为-124 ~ -109、-275 ~ -34、-329 ~ -89 mm/a，其中，涩北1号、2号气田表现出更为显著的地表沉降现象，而且3个气田区地表均在持续快速下沉；进一步以InSAR监测结果为观测量反演得到储层参数，结果显示，利用储层参数正演所得形变与观测形变差异较小，空间分布较为一致，表明基于SBAS-InSAR形变结果反演涩北气田储层参数具有一定的可靠性。

Subsidence monitoring and reservoir parameters inversion in gas field can provide important supporting information for safe production protection and mining planning. The SBAS-InSAR method was used to investigate the surface subsidence evolution characteristics of Sebei gas fields from February 2022 to September 2023. Furthermore, the InSAR monitoring results were used as the observation measurements to invert the reservoir center projection coordinates, depth, strike and other parameters of the gas fields through the Prolate spheroid source. The results show that the subsidence funnel occurs in the Tainan gas field, the Sebei No. 1 gas field and the Sebei No. 2 gas field, and the average annual subsidence rate is -124 ~ -109, -275 ~ -34, and -329 ~ -89 mm/a, respectively. Among them, the Sebei No. 1 gas field and the Sebei No. 2 gas field show a more significant surface subsidence phenomenon. And the surface of all three gas fields continues to sink rapidly. Further, the reservoir parameters were obtained by inversion of InSAR monitoring results. The results show that there is little difference between the deformation derived by using the optimal parameters and the observed deformation, and the spatial distribution is consistent, which indicates that it is feasible to invert the reservoir parameters of Sebei gas fields based on SBAS-InSAR deformation results.