## 5 Conclusions  
1. In this paper, a calculation method for air injection air consumption considering gas storage in light oil reservoirs is proposed. The air consumption of light oil is defined as the air volume consumed by the oxidation front minus the volume of stored gas in the pores sweeping through the unit volume of oil sand minus the volume of stored gas in the pores, which can more accurately reflect the oxidation state.
2. Air injection of 5 MPa, 15 MPa, and 30 MPa experiments can form a stable oxidation state and displacement state. The temperature of the oxidation front is greater than 350 \({}^{\circ}\)C, and the oil displacement efficiency is greater than 90%. With the increase in the pressure of the light oil air injection experiments, the oil displacement efficiency improved, resulting in less remaining oil at the oxidation front. Concurrently, the air consumption and fuel consumption of the oxidation reaction decreased, and the temperature of the oxidation front decreased accordingly.
3. When the experimental pressure is higher, the gas production-injection ratio decreases. The gas production time is late, and the production gas-oil ratio is low, minimizing the risk of gas channeling. Under 30 MPa pressure conditions, the air injection displacement process demonstrates excellent stability.
4. Compared with the air injection in the original reservoir, the air consumption and fuel consumption of the air injection after water injection experiments increase, the temperature of the experimental oxidation front becomes higher, and the oxidation front is more stable. The main reason may be the formation of water-in-oil emulsion and supercritical water during the displacement and the promotion effect on the oxidation reaction.
5. Overall, after water injection, air injection in high recovery reservoirs can form a stable oxidation state, and the temperature of the oxidation front is greater than 350 \({}^{\circ}\)C. The thermal oxidation front is uniformly advanced, which can significantly increase the oil production rate, reduce the water cut, and greatly improve the oil production rate. The oil displacement efficiency in the air injection stage is increased by 30 percentage points.
6. Air injection technology is expected to become a strategic development technology with potential for deep reservoirs with high permeability, high temperature, high salinity, and high water saturation.  
Conceptualization, Z.Z. and C.X.; methodology, B.W. and P.L.; software, F.Z.; validation, F.Z. and C.X.; formal analysis, Z.Q.; investigation, T.L.; resources, Z.Q. and B.W.; data curation, T.L.; writing--original draft preparation, Z.Z.; writing--review and editing, C.X.; visualization, D.H. and X.Z.; supervision, F.Z. and C.X. All authors have read and agreed to the published version of the manuscript.  
The authors would like to acknowledge the financial support of the China National Petroleum Corporation Technology Project (2023 ZG18).  
Ethical review and approval were waived for this study due to the absence of human or animal involvement.  
Written informed consent has been obtained from the patient(s) to publish this paper.  
The data that support the findings of this study are available from the authors.  
**Conflicts of Interest:** Authors [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON] and [PERSON] were employed by the company PetroChina. The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.