论文详情
辽河坳陷牛心坨地区中生代火山岩储层特征
断块油气田
2007年 14卷 第05期
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Title
Mesozoic volcanic reservoir characteristics in
Niuxintuo area of Liaohe Depression
单位
1. 辽河油田公司勘探开发研究院,辽宁盘锦124010;2.南京大学地球科学系,江苏南京210093
Organization
1. Exploration and Development
Research Institute, Liaohe Oilfield Company, CNPC,
Panjin 124010;2. School of Geoscience, Nanjing
University, Nanjing 210093, China
摘要
辽河坳陷牛心坨地区火山岩主要为高钾钙碱性系列和钙碱性系列，火山岩岩石系列尧岩石类型以及岩石学和地球化学特征等均有挤压造山的特征遥该区火山岩有熔岩和火山碎屑岩2 种喷发类型，熔岩主要为流纹岩、安山岩和粗安岩，其中流纹岩为油气的主要储层，火山碎屑岩主要为火山角砾岩和凝灰岩。构造活动是火山岩储层形成的先决条件，岩石类型和酸性流体是储层形成的必要条件，火山岩储层物性取决于裂缝和次生孔隙的大小，原生孔隙对储
集物性基本没有贡献。
Abstract
The volcanic rock is mainly the high alkaline kaliumcalcium
series and alkaline calcium series in this area. The
volcanic rock series, rock type, lithology and earth’s chemical
characteristics represent the result of the extrusion force. The
volcanic rock includes two types of fulgurites and oddment in
the area. The main component of the fulgurites is rhyolite and
andesite. The volcanic rock is mainly the volcanic breccias
and tuff. The fulgurites are the main oil reservoirs. The
structural activities are the reason of forming volcanics
reservoir, and the type of rock and acidic liquid is the
necessary condition. The lava reservoir porosity and
permeability are determined by the size of fractures and
secondary porosity. The primary pore isn’t contributed to the
reservoir.
关键词：
辽河坳陷 牛心坨 火山岩 储层特征 裂缝;
Keywords:
Liaohe Depression, Niuxintuo, volcanic rock,
reservoir characteristics, fracture.;
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