高台子油田扶杨油层油水层识别评价方法研究与应用

The Research of Oil-water Layer Identification and Evaluation of Fuyang Formation in Gaotaizi Oilfield

高台子油田扶杨油层油水分布复杂,该区属于尚未进行大规模开发的地区。为了正确识别油水层并为制定油田开发方案提供依据,建立该地区油水关系解释图版和识别标准显得尤为重要。通过储层"四性"(指岩性、物性、含油性、电性)关系研究,应用交会图版法、油水层综合评价标准来综合识别油水层。同时,应用逐步判别分析的方法,建立高台子扶杨油层的油层、差油层、水层和干层的判别函数模型。通过回判率检验表明,建立的判别模型效果显著。通过以上这两种方法的配合能对油水层的识别更加精确。

Fuyang formation in Gaotaizi area with the complex oil-water distribution is a place that has not been developed massively.In order to identify oil-water layer correctly and provide the basis for formulating oilfield development programme,establishing the oil-water relationship interpretation plate and identifying standard appears especially necessary.Through the study of Fuyang formation of ＂four property ＂（refers to lithology,petrophysical property,oil content,electrical）,crossplot engraving method and comprehensive evaluation standard are applied to identify oil-water layer.Moreover,stepwise discrimination analysis method is applied to establish a discriminant function model of oil layer,poor oil layer,water layer and dry layer.The back sentenced tests show that,the rate of discriminant model effect is remarkable.The two methods can make the identification results more precisely.