火成岩储层测井评价进展综述

Progress of log evaluation for igneous reservoir.

十多年来,国内外火成岩储层测井评价已从交会图定性分析发展到用岩心分析资料建立裂缝性储层的测井解释模型,半定量、定量评价裂缝。成像测井和核磁测井的纵、横向分辨率高,经过地质刻度,可以较精细地识别岩性和裂缝,在解释火成岩方面有良好的效果。提高岩性识别准确率,识别复杂火成岩储层和孔隙流体,以及综合评价火成岩储层裂缝、饱和度等参数,仍然是火成岩储层测井评价所面临的难题。加强岩石物理基础实验,研究火成岩储层导电机理,系统研究火成岩储层测井评价理论,推广测井新技术在火成岩中的应用,建立统一的测井评价方法,将成为火成岩储层测井评价的发展趋势。

Great progress has been made in qualitative analysis and quantitative calculation of fractures in igneous rock reservoirs from logging data both at home and abroad in the past ten years. FMI logs and nuclear magnetic resonance logs are of high vertical and horizontal resolution, and can be used to identify lithology and fractures after geologic scaling. Satisfactory results have been achieved by applying them to interpretation of igneous rock. It is problems yet to be solved for evaluation of igneous rock reservoir to improve the identification of lithology and pore fluid, as well as to calculate reservoir parameters such as fracture and saturation. The developing trends of evaluation for igneous rock reservoir are strengthening rock physics study, establishing a theoretical framework for logging evaluation of igneous rock, and-popularizing new logging techniques.