## 5 Verification of Universality
### Example of Passive Pressurization Mode  
There exists passive overpressure in the Yichang area of the Middle Yangtze region. This area has experienced multiple episodes of tectonic uplift and subsidence. Large-scale uplift began at the end of the Triassic period (200 Ma), followed by rapid subsidence in the Early Cretaceous and another rapid uplift during the Miocene and Pliocene (10-5 Ma) [58; 59]. This has led to the formation of passive overpressure, with an overpressure coefficient reaching 1.4 times [60]. The theoretical maximum uplift height is calculated to be 1100 m (using the depth of 2800 m in the E'yi Ye-2 well), which is consistent with the results obtained by [PERSON] et al. (2011) [61]. Passive overpressure is also present in the Wuwei Depression of the Lower Yangtze region. In 2019, two sets of abnormally high-pressure natural gas-bearing layers were discovered for the first time in the Triassic Zhouchongcun Formation T\({}_{\text{2z}}\) of the Wanwei Ye-1 well, with a maximum formation pressure coefficient of 1.9 [62]. The shallow first gypsum salt layer, which is nearly 200 m thick (1975-2175 m), blocks the escape of formation water and natural gas, with a pressure coefficient of 1.79. The second gypsum salt layer beneath it is 50 m thick (2295-2345 m) and has a pressure coefficient of 1.95 (Figure 7). There has been relatively recent rapid uplift and denudation in this area (compared to the Miocene and Pliocene), resulting in slow release of formation pressure within better or thicker cap rocks. Large-scale vertical movement only occurred in eastern China during the Oligocene, with denudation of the Paleogene in southern Jiangsu reaching 2000-3000 m [63]. [PERSON] (2005) [64] used paleotemperature parameters to reconstruct the tectonic evolution of the Wuwei Depression in the Lower Yangtze region, indicating large-scale uplift and denudation in the study area, resulting in the widespread absence of Jurassic strata, with denudation reaching up to 2550 m during this period. As seen from the aforementioned examples, the pressure release due to uplift and denudation becomes slower as it approaches the present day. Ideally, it should be controlled within 5 Ma, as in the case of uplift in the Sichuan Basin mentioned earlier. The uplift in this area occurred during the Oligocene (37-23.5 Ma). If it were conventional mudstone, the internal high pressure should have been fully released. However, the presence of two gypsum salt layers in the Wuwei Depression has slowed down this process. Abnormally high pressures have been observed in the Permian and Triassic reservoirs of the Mahu Sag in the northwest Junggar Basin [65], with a maximum overpressure coefficient reaching 1.9 times, exhibiting similar characteristics. During the Neogene period, the basin experienced intense tilting, resulting in uplift in the north and subsidence in the south. The strong subsidence in front of the Northern Tianshan Mountains caused Neogene sediments to accumulate mainly in this area, while the northern part of the basin was predominantly an uplifted and denuded region [66]. Only a portion of the Paleogene strata in the Mahu Sag is preserved in the eastern part. As observed from the northwest-southeast profile across the Mahu Sag, the Cenozoic strata gradually thicken towards the southeast. The minimum residual thickness in the Mahu Sag is 200 m, while it can reach up to 4 km in the Fukang Sag [67]. Based on these observations, it can be inferred that the uplift and denudation in the Mahu Sag are closely related to the intense compression and thrusting from the southern Tianshan Mountains during the Neogene period. The large denudation thickness and relatively recent timing (Pliocene or later) are consistent with the passive pressurization model. Using Formula (2) for this model, the theoretical denudation thickness is calculated to be greater than 4 km. Figure 7: Oil and gas shows in the Triassic Zhouchongçun Formation of well Wanwei Ye 1 in the Wuwei Depression [62].