麻黄山西探区油水层自动识别技术

Technology of Oil-water Bed Identification in Western Mahuangshan

针对麻黄山西探区区域地质特征,分析和确定了该区块不同井区的视油柱高度,并从常规测井物理参数的特征出发,分析了油层、油水同层、水层和干层的测井响应特征参数,确定了用GR、DEN、RT、RT/R0、Rxo/RT及POR(D-N)的特征值来构建该区Bayes自动判别函数,并引入不同井区的视油柱高度来进行限定,以此实现在不同井区自动判别含油性的方法。判别结果与测试资料进行了对比验证,其解释符合率达87.1%,取得了较明显的应用效果。

Based on the regional geological feature in Mahuashan west exploration area,this paper introduces the apparent oil column height in different wellblocks in the place,analyses the logging characteristic parameters of oil layer,oil-water layer,water layer and dry layer from the conventional logging and builds up a Bayes automatic identification function for this area by using the characteristic value of GR,DEN,RT,RT/R0,Rxo/Rt and POR（D-N）.This paper adopts the method of oil automatic identification to solve the problem of identifying petroliferous property automatically.Finally,it compares the result and testing data.