reservoir fluid type

However, the reservoir fluid type in high-evolution area can't be exactly identified with this method.

但这一方法在高演化地区的气层识别上遭遇到一些问题。

On the one hand, it is is very complex and difficult to identify fluid type of fracture reservoir because of its complex lithology, various reservoir types and heterogeneity.

一方面裂缝性储层具有岩性复杂、储集类型多样、物性变化大和非均质性强等特点，因而其测井解释和流体类型识别要复杂和困难得多。

Fluid type identification of fracture reservoir is a worldwide difficult problem.

裂缝性储层流体类型识别一直是测井界亟待解决的难题。