Drilling overflow early warning method, device, equipment, medium and product

Abstract

The embodiment of the application provides a drilling overflow early warning method, device, equipment, medium and product, and is applied to the field of petroleum engineering technology. The method comprises the following steps: generating second logging data in a second period based on first logging data in a first period; obtaining risk identification results of each moment in the first period and the second period according to the first logging data and the second logging data; constructing evidence according to the moment based on the risk identification results of each moment, and obtaining evidence of different time steps; performing evidence fusion based on multiple evidences and a preset fusion rule, and obtaining a minimum probability value and a maximum probability value of overflow occurring in the second period; and when at least one of the minimum probability value and the maximum probability value is greater than a preset threshold value, an early warning information is sent; wherein the early warning information represents that overflow will occur in the future second period. The technical effect of improving the reliability of drilling overflow early warning is achieved.

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