摘要
火山岩油气藏的研究一般以陆上喷发沉积的火山岩体为主,事实上全世界四分之三的火山活动是在水下发生的,只是水下喷发沉积的火山岩在各个方面的研究还比较少,在勘探中尚未引起注意。本文以三塘湖盆地石炭系火山岩油藏为例,对比分析了陆上与水下喷发沉积形成的火山岩在岩性、颜色、结构构造以及储集空间特征和地震反射特征等方面的差异,指出了三塘湖盆地石炭系哈尔加乌组火山岩为水下喷发环境形成。通过对研究区两种类型的火山岩油藏系统的研究,总结出了水下喷发沉积的火山岩储层的形成机理以及其形成规模油气藏的条件,为今后的火山岩油气藏的勘探指出了新的方向。
The research of volcaniclastic reservoir based on subaerial eruption generally. Actually, three-quarters of the Earth＇s volcanic activity is submarine. The study of subaqueous volcanic reservoirs is still relatively little. In this paper, taking volcanic reservoir of Carboniferous in Santanghu Basin as ExampLe, compare the subaerial eruptions deposition with submarine eruption deposition, there are many differences in the lithology, color, structure, construction, as well as spatial and seismic reflection characteristics. The paper pointed out the evidence to prove that the Carboniferous volcanic formation in the submarine environment in Santanghu Basin. By the research of the two types＇ volcanic reservoir,the paper summarize the submarine reservoir mechanism of formation and deposition as well as its scale formation reservoir conditions,this study indicate a new field for future volcanic reservoirs exploration.
出处
《地质科学》
CAS
CSCD
北大核心
2010年第4期1088-1097,共10页
Chinese Journal of Geology(Scientia Geologica Sinica)
基金
国家重大专项"岩性地层油气藏成藏规律
关键技术及目标评价"(编号:2008ZX05001)资助
关键词
火山岩储层
三塘湖盆地
水下喷发
陆上喷发
Volcanic reservoir, Santanghu Basin, Submarine eruption, Subaerial eruption
