1results about How to "Improve evaluation ability" patented technology

The present application belongs to the field of petroleum geology, and particularly relates to a method for evaluating oil and gas maturity in a fluid inclusion by using infrared spectrum. First, a fluid inclusion slice prepared from a stratum rock sample in a sedimentary basin is obtained; a filling sequence of diagenetic minerals in the stratum rock is determined; different occurrences of oil and gas are judged by petrographic characteristics under a microscope and fluorescence spectrum characteristics of the rock slice; infrared spectrum testing is performed on the oil and gas inclusions with different occurrences, and infrared spectrum characteristics of inclusions in different stages are obtained; a required spectrum range peak area is extracted from a spectrum diagram and brought into a formula; and an effective parameter for evaluating oil and gas maturity in the inclusions is obtained by using the formula and is sorted. The instrument used in the present application eliminates the requirement and limitation of traditional infrared spectrum on the size of the inclusions, and can measure and evaluate most oil and gas inclusions with smaller size.