郭欣欣;刘立;曲希玉;蒙启安;宋土顺;

• 1:吉林大学地球科学学院

• 2:东北农业大学资源与环境学院

• 3:中国石油大学地球科学与技术学院

• 4:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

为了研究火山碎屑岩的储层特征及储层敏感性机理,以塔木察格盆地塔南凹陷铜钵庙组—南屯组火山碎屑岩为对象,运用普通薄片、铸体薄片和扫描电镜等技术,结合储层敏感性实验资料,根据《储层敏感性流动实验评价方法》(SY/T 5358-2002),分析火山碎屑岩储层特征及其水敏、盐敏、速敏、碱敏、酸敏的特征和形成机理.结果表明:岩石类型包括凝灰岩、沉凝灰岩和凝灰质砂(砾)岩,主要敏感性黏土矿物有蒙脱石、伊利石、高岭石、绿泥石和伊/蒙混层,属于中低孔特低渗型储层;水敏性强弱与岩石类型关系密切,凝灰质砂(砾)岩水敏为中等偏强—强,凝灰岩和沉凝灰岩水敏为中等偏弱—中等偏强;盐敏程度绝大多数为中等偏强,临界盐度为5.126g/L;速敏为中等偏弱—弱速敏;碱敏为中等偏弱—中等偏强碱敏,临界碱度为7.43;酸敏程度范围较广;水敏程度与黏土矿物总量呈正相关;酸敏程度主要受绿泥石含量影响,酸敏指数与绿泥石含量呈正相关.该研究可为火山碎屑岩油气勘探提供借鉴.

关键词(KeyWords)：火山碎屑岩;储层特征;黏土矿物;储层敏感性;塔木察格盆地;塔南凹陷

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(40972075);; 高等学校博士学科点专项科研基金项目(20090061120043);; 吉林大学基本科研业务费项目(200903024)

作者(Author):郭欣欣;刘立;曲希玉;蒙启安;宋土顺;

Email:

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