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XQ地区石炭系火山岩储层岩性复杂,部分地区火山岩性较为单一,基本为安山岩,但是部分地区却较为复杂,呈现出火山角砾岩、火山凝灰岩与正常沉积岩共同沉积,在研究区内每口井上钻揭均呈现出不同的特征。本文将利用录、测井等资料对该地区石炭系火山岩储层特征的总结,以及岩性的分析,利用区域内岩性变化特征反演区域内火山喷发时所形成的火山岩相,并结合实际的构造综合分析,最后通过试油结果对该地区的火山岩储层进行验证,指出该地区石炭系火山岩储层的地质特征,揭示油气藏在火山岩中以断裂、裂缝为油气的运移通道和储积区域的油藏富集模式。
The lithology of the Carboniferous volcanic reservoirs in the XQ area is complex. Some of the volcanic rocks in the area are relatively single, with andesite basically, but in some areas they are more complex with volcanic breccia and volcanic tuff co-deposited with normal sedimentary rocks. In the study area, Drilling wells are showing different characteristics. This paper will use logging and logging data to summarize the characteristics of Carboniferous volcanic reservoirs in this area and analyze the lithology. The volcanic lithofacies formed at the time of volcanic eruption in the area will be inversed by the characteristics of lithology changes in the area, Finally, the results of oil testing are used to verify the volcanic reservoirs in this area. The geological characteristics of the Carboniferous volcanic reservoirs in this area are pointed out. The faults and fractures of oil and gas reservoirs are the migration channels and accumulations of oil and gas Regional reservoir enrichment model.