Vitrinite reflectance correction method and method for evaluating maturity of organic matter in hydrocarbon source rock

Abstract

The application discloses a vitrinite reflectance correction method and a hydrocarbon source rock organic matter maturity evaluation method. The correction method can comprise the following steps: obtaining normal vitrinite reflectance and other hydrocarbon source rock organic matter maturity indexes of adjacent strata of a target area; based on the other hydrocarbon source rock organic matter maturity indexes and the normal vitrinite reflectance, respectively constructing a relationship between the other hydrocarbon source rock organic matter maturity indexes and the other hydrocarbon source rock organic matter maturity indexes equivalent vitrinite reflectance; based on the relationship between the other hydrocarbon source rock organic matter maturity indexes and the other hydrocarbon source rock organic matter maturity indexes equivalent vitrinite reflectance, performing fusion to construct a relationship of multi-dimensional equivalent normal vitrinite reflectance of the adjacent strata; based on the other hydrocarbon source rock organic matter maturity indexes of the target area and the relationship of multi-dimensional equivalent normal vitrinite reflectance of the adjacent strata, determining the equivalent normal vitrinite reflectance of the target area to correct the vitrinite reflectance of the target area.

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