低孔低渗储集层测井评价技术综述与展望

Overview and Prospect of the Logging Evaluation Technology on Low Porosity and Permeability Reservoirs

为了做好低孔低渗储集层测井评价工作,本文基于大量文献调研,首先梳理了低孔低渗储集层的成因机理及其基本特征,其次开展了低孔低渗储集层测井响应特征的分析,进而综合分析了低孔低渗储集层的测井评价方法及其发展趋势。研究表明,低孔低渗储集层的成因机理包括储集层沉积成因、成岩作用和构造运动等。低孔低渗储集层物性较差,测井响应特征受岩石骨架和孔隙结构影响较大。对低孔低渗储集层的评价方法从岩性评价、物性评价、含油气性评价和产能评价四个方面进行了综合分析评价,同时也分别分析了低孔低渗储集层的适用评价方法。高分辨率感应、成像测井、核磁共振、多极阵列声波等测井新技术为低孔低渗储集层测井评价提供了新的思路和解决途径。

In order to do logging evaluation on low porosity and permeability reservoirs,this paper,based on extensive literature research,presents first the formation mechanism and basic characteristics of low porosity and permeability reservoirs,then analysis of the logging response and then a comprehensive analysis of the logging evaluation methods and trends.Studies have shown that the formation mechanisms include reservoir sedimentary origin,diagenesis and tectonic movement,etc.Their physical properties are poor and rock matrix and pore structure has great impact on logging responses.The evaluation methods for low porosity and permeability reservoirs are analyzed from lithology evaluation,property evaluation,evaluation of hydrocarbon potential and capacity evaluation four aspects and also applicable evaluation methods.New technologies such as high resolution induction logging,imaging logging,nuclear magnetic resonance logging and multipole array acoustic logging have provided new ideas and solution for low porosity and permeability reservoir evaluation.