松辽盆地火山岩储层储集空间特征及其成因  

Pore Textures and Its Causes of Volcanic Reservoir in Songliao Basin

作　　者：杨双玲[1] 刘万洙[2] 于世泉[1] 王国军[1] 黄玉龙[2] 

机构地区：[1]大庆油田勘探开发研究院,黑龙江大庆163712 [2]吉林大学地球科学学院,长春130061

出　　处：《吉林大学学报（地球科学版）》2007年第3期506-512,共7页Journal of Jilin University：Earth Science Edition

基　　金：国家自然科学基金项目(40372066);高等学校博士学科点专项科研基金项目(20030183042)

摘　　要：松辽盆地储层火山岩主要为流纹岩，亚碱性、钙碱性系列，钾质中高。储集空间可划分为原生孔隙、次生孔隙和裂缝3类和13种基本成因类型。火山岩储层平均孔隙度3％～15％，渗透率（0．1～5）×10μm^2，孔隙半径0．05～1μm；孔隙结构可分为粗态型、偏粗态型、偏细态型、细态型和极细态型5种。构造运动、风化淋滤作用及流体活动是影响和控制储层空间发育程度的主要地质因素。Rhyolite is the main reservoir volcanic rocks of the Songliao Basin, belonging to calc-alkaline type of subalkaline series, also with medium-high-K. Reservoir space can be classified as primary pore, secondary pore and fissure, and furthermore, as thirteen basic genetic sub-types. The average porosity of volcanic reservoir is in range 3--15 percent, permeability （0. 1-5） ×10^-3μm^2 , and pore radius ranges 0.05-1μm. Pore structures can be classified as wide form, less wide form, rather narrow form, narrow form and extremely narrow form. Tectonic movements, weathering erosions and fluid activities are the main geologic factors that influence and control the developmentand evolution of reservoir space.

关 键 词：松辽盆地庆深气田 火山岩储层 储集空间类型 孔隙特征 

分 类 号：P618.130[天文地球—矿床学] P588.14[天文地球—地质学]