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川东地区石炭系储层岩性、物性及孔隙结构复杂，各向异性强，使得测井判别流体性质符合率一直不高，这是一直困扰测井资料解释工作的一大难题。综合分析储层性质、划分储层类型，分析研究各种流体性质判别方法的适应性，根据不同的储层类型选用不同的方法，是解决这一难题的有效方法。文章通过分析研究七大类11种流体性质判别方法在川东地区27个构造石炭系储层的适应性，提出了一套综合判别川东地区石炭系储层流体性质的方法，使该地区储层流体性质符合率提高到90％以上。

Adaptability Analysis of Discriminating the Property of Fluids in Carboniferous Reservoirs in East Sichuan by Logging Methods

The coincidence rate of discriminating fluid properties by logging methods is always low because of strong anisotropism in Carboniferous reservoirs with complicated lithology,petrophysical property and pore structure in East Sichuan,which is a difficult question of puzzling log data interpretation all along.It is an effective method to solve such a difficult question through selecting different methods according to various reservoir types on the basis of comprehensively analyzing reservoir property,dividing reservoir type and investigating the adaptability of various methods of discriminating fluid properties.Based on analyzing the adaptabilities of these methods of discriminating the property of fluids with 11 categories of 7 types in Carboniferous reservoirs in 27 structures in East Sichuan,a set of methods of comprehensively discriminating the property in fluids in Carboniferous reservoirs in East Sichuan are proposed in the paper.By use of these methods,the coincidence rates of discriminating the property of fluids in the reservoirs in this region can be raised to more than 90%.