徐家围子火山岩气藏储层测井响应特征

Logging Response Characterization of Volcanic Rock Gas Reservoir in the Xujiaweizi Area in Songliao Basin.

在对松辽盆地北部徐家围子地区深层火山岩的岩石学特征和储层微观结构特征认识的基础上 ,利用测井资料进行了火山岩的测井地质学研究 ,划分出流纹岩、安山岩 2种类型的火山岩储集层 ,建立了流纹岩、安山岩 2种储层孔隙度计算方法 ,制定了流纹岩、安山岩储层有效厚度划分标准 ,总结出该区裂缝性储层的 3种识别方法。

In recent years, great achievements have been made in volcanic accumulation exploration in the deep formation of the Xujiaweizi area in the north of Songliao Basin. By studying the geological characters of volcanic rocks and the microtexture characters of volcanic reservoirs, the paper gives many interpretation methods for logginggeology, such as identifying different volcanic reservoirs with logging curves, effective porosity calculating formulations and effective thickness standards for andesite and rhyolite reservoirs. Three methods for identifying fracture reservoirs have been summed up. The above methods are widely applied in two aspects, one is for well drilling, the other for geological reserves estimation.