摘要
有机包裹体的形成与一般无机包裹体的形成可有较大区别，它除了可在矿物结晶过程中形成（象无机包裹体）外，更重要的成因是它可在与岩石相互作用过程中形成。笔者着重对这种新的形成机制进行了分析研究．经研究表明，赋存于碎屑岩储层中石英裂隙、加大边及粒间包裹体，是由于油气（特别是羧酸）溶解了石英及铝硅酸盐、碳酸盐形成一定空间后，油气充填其中再封闭而成的。这是油一岩反应的结果。不同赋存状态的有机包裹体实际上是同一过程在不同岩石构造部位的不同表现形式．指出这项研究对于开展储层地球化学和矿物包裹体形成机制研究的重要意义和对于油气勘探和评价的重要作用。
The mechanism of organic inclusions may be quite different from that of inorganic inclusions,the organic inclusions may be mainly formed from the process of oil-rock interaction. A study on the new mechanism,this paper shows that the inclusions within the cracks,secondary enlargement edges of quartz and between minerals in the fragmental resevoirs are the result of oil-rock interaction. They are formed when oil and gas, especially the carboxylic acid anions in them dissolve quartz,aluminosilicate and carbonate and form a certain space in which oil and gas infill.Inclusions in different occurrences are actually the different forms of the same process that takes place in the different structures of a rock.Our study is significant to the reservoir geochemistry,the mechanism of fluid inclusion and application of organic inclusions in exploration and evaluation of oil and gas resource.
出处
《地质科技情报》
CAS
CSCD
北大核心
1994年第1期53-59,共7页
Geological Science and Technology Information
关键词
油气藏
储层
碎屑岩
矿物包体
成因
organic inclusion, mechanism,oil-rock interaction,fragmental reservoir
