This dataset represents the cradle-to-gate inventory of the product. It includes both hot water injection and steam drive multi-technology, where the proportion of technologies used in petroleum production in China is 80% hot water injection and 20% steam drive. This dataset can represent the average production mix in China. Hot water injection technology: Water is heated to a certain temperature and then injected into the oil layer, increasing the temperature of the oil layer, altering the physical properties of the petroleum, reducing viscosity, and improving fluidity, thereby increasing the recovery rate. Steam drive technology: This technology is primarily applied to the development of thickened oil reservoirs. By injecting high-temperature steam into the oil layer, it reduces the viscosity of the petroleum and enhances its fluidity, thus facilitating extraction. thickened oil reservoirs refer to reservoirs where the viscosity of the stored petroleum is greater than 50 mPas under reservoir conditions. petroleum from thickened oil reservoirs has high viscosity and poor mobility, making it difficult to extract. The net heat value of petroleum is 43.4 MJ/kg, and the average calorific value of natural gas is 36 MJ/Sn3.