松辽盆地莺山断陷安山岩储气层岩石物理特征研究

莺山断陷在深层株罗系安山岩中发现气层，从而使深层火山岩成为松辽盆地又一个勘探目的层。根据特殊储气层特点，系统研究本区安山岩岩石物理特征：利用测井资料有效识别3类安山岩储气层；利用测井资料，结合常规岩样和全直径岩样物性分析资料，建立泥质含量及孔隙度解释模型；在密闭取心和油基钻井取心资料缺乏的情况下，利用测井参数有效求聚含气饱和度；利用井周声波成象测井资料判断裂缝，结合其它测井资料，求取裂缝孔隙度。

Petrophysical Study on Andesite Gas Reservoir in Yingshan Downcast of Songliao Basin

The petrophysics study on deep andesite rocks is very important in Yingshan downcast of Songliao Basin, because gas reservoirs have been discovered in the area of deep andesite. Base on the gas reservoir characteristics, this paper introduces the thinking and methodology for making successful petrophysical study - identifying andesite and its three types with logging data. The clay content and porosity interpretation model is founded by incorporation logging and convertional and fulldiameter physical property analysis; Gas saturation is determined in the case of lake of sealing coring and oil -base drilling mud coring data by logging data;Fractures are determined by wellbore sonic imaging and then getting fracture porosity. The study can play an important role in researching the deep igneous gas reservoir in Songliao Basin.