The application discloses a kind of catalysts for
oxygen-reduced air drive oil
recovery and its preparation method and application, it belongs to oil
recovery technical field, comprising the following steps: S1,
molybdenum disulfide is dispersed in deionized water, and
molybdenum disulfide dispersion is obtained;S2, soluble
transition metal salt solution is mixed with
molybdenum disulfide dispersion, and two-component catalyst is obtained;S3, two-component catalyst is post-treated, and the catalyst for
oxygen-reduced air drive oil
recovery is obtained.The
oxygen-reduced air drive oil recovery catalyst prepared by the application has good low-temperature reaction performance, fast oxidation speed, can speed up the process of low-temperature oxidation stage, and can also reduce the risk of
oxygen penetration into the reservoir, which is beneficial to reduce the construction risk.Compared with traditional catalysts, the
asphaltene content of the catalyst after oxidation is lower, which can not only improve the quality of oil products, but also improve the flow performance and oil recovery efficiency of oil products.