1results about How to "Achieve division" patented technology

The invention discloses a method for recognizing an oil and gas reservoir thin layer based on a dynamic mean value amplitude difference ratio. The method comprises the steps that a natural potential dynamic mean value curve and a flushing zone resistivity dynamic mean value curve are calculated for a natural potential curve and a flushing zone resistivity curve in conventional logging according to the same step length; calculating a relative amplitude curve and a multiple curve; selecting a to-be-measured area of a jurisdiction thin layer, performing thin layer division by utilizing high-resolution logging, determining the position and the thickness of the thin layer, and comparing natural potential relative amplitude characteristics by taking the result as a standard; resistivity multiple characteristics of the flushing zone are compared; according to the actual situation of the coring well in the jurisdiction, comparing and verifying the value limits of the relative natural potential relative amplitude parameter and the flushing zone resistivity multiple parameter; and identifying the position, thickness and upper and lower interfaces of the oil and gas reservoir thin layer in the jurisdiction according to the parameters. The method provided by the invention solves the problems of oil and gas reservoir thin layer missing and low identification efficiency in the manual interpretation work of a large amount of conventional logging information in the prior art.