深部气层和干层测井模糊综合评判

Distinguishing of Deep Gas-bearing and Tight formations with Log Fuzzy Comprehensive Analysis

深部气层和干层的区分是常规测井解释的难题。认识始于实践。本文依据东濮凹陷深层试采资料,建立了两个模式各四个参数的隶属度曲线,进行气层和干层模糊综合评判研究,并用该地区深层试井资料作了检验,效果颇佳。证明模糊综合评判是区分深部气层和干层的一种行之有效的方法。

It's difficult to make a distinction between deep gas-bearing and tight formations with conventional method. Knowledge conies from practice. This paper, Based on the testing data of Dongpu Depression, has established the membership degree curves of two patterns each respectively with four parameters and made comprehensive identifications of deep gas-bearing and tight formations. As the identifications have been well verified by practice, they can be used as important reference for the formation evaluation.