三角洲体系沉积微相的测井识别方法与应用

Logging recognition method on sedimentary
microfacies of delta systemand its application

 朱现胜

Zhu Xiansheng

 长江大学地球科学学院，湖北荆州434023

(School of Geosciences, Yangtze
University, Jingzhou 434023, China).

 沉积微相是沉积体系中最基本的沉积单元，而它的沉积特征可以通过测井曲线
来反映。在关键井岩心研究的基础上，从测井响应曲线中提取有用的特征参数，建立一种三角
洲测井沉积微相模式。比照测井区的测井曲线特征，进而划分判定三角洲沉积微相。文中主要
介绍用SP(自然电位)测井曲线和SHDT(地层倾角)测井的特征进行微相识别。很多油田应用该
方法在识别沉积微相方面取得了非常好的效果。

Sediment microfacies are the basic sediment units in the
depositional system, but the well-log curve can be reflected
through the characteristics of sediment microfacies. On the
basis of the key cored wells researched, we select the
quantitative characteristics parameters from well-log response
characteristics curve and then set up a kind of well -log
sediment microfacies model of delta. Then the sediment
microfacies of delta are determined according to the
characteristics of log curve. This paper mostly introduces the
SP curve and SHDT character to recognize the microfacies.
Many of oilfields have got a very right effect in recognization of
the sediment microfacies by using this method.