油气化探数据受多种因素影响，采用不同的处理方法和流程往往会产生颇不相同的效果。本文详细介绍了油气化探影响因素的校正方法、指标优选与综合方法、异常确定方法以及多种多元异常计算方法，提出了合理的处理流程。经在二连盆地等地多个油田验证及通过未知区预测结果与实际地质条件对比，认为这些方法和该流程可以有效的消除主观因素，正确确定有利异常区 Oil and gas geochemical data are affected by many factors, and different treatment methods and processes often produce quite different results. In this paper, the correction methods, index optimization and comprehensive method, abnormal determination method and multiple multivariate anomaly calculation methods of oil and gas geochemical exploration are introduced in detail, and a reasonable process is proposed. The comparison of the prediction results of unknown regions and actual geological conditions by multiple oilfields in Erlian Basin and other places shows that these methods and procedures can effectively eliminate the subjective factors and correctly determine the favorable anomalous regions