I. Introduction
It is well known that traditional oil and gas reservoir classification methods are mainly qualitative or semi-quantitative identification methods [1]. The disadvantage is that it is highly artificial, and secondly, it is difficult to fully consider many reservoir evaluation parameters in a scientific manner, which is often overlooked. In this paper, artificial neural network is applied to the study of reservoir classification, which avoids the influence of human factors and makes the reservoir evaluation more quantitative and scientific. Taking Yan 'an Group in TBC area as an example, the practicability and effectiveness of objective evaluation neural network are given.