中国石油大学学报（自然科学版）2016，Vol.40Issue(5)：22-31,10.DOI:10.3969/j.issn.1673-5005.2016.05.003
准噶尔盆地西缘车排子凸起石炭系火山岩储层成因
Genesis of Carboniferous volcanic reservoirs in Chepaizi salient in western margin of Junggar Basin
摘要
Abstract
Carboniferous volcanic rock is an important reservoir type in Chepaizi salient, western margin of Junggar Basin. Based on the results of core observation, thin section identification, element test and physical property analysis, this study analyzed the lithology, lithofacies, reservoir space types, physical property and genesis of the Carboniferous volcanic rocks. The results reveal that Carboniferous volcanic rocks are dominated by volcanic lava ( including basalt, andesite, and basaltic andesite) and pyroclastic rocks (including intermediate-basic volcanic breccias and tuff). The volcanic rocks are low porosity and ultra-low permeability reservoirs, with main reservoir space of secondary dissolved pore and fracture. The Carboniferous volcanic rocks have undergone intense reformation at late stage, including condensation consolidation, tectonic uplifting, weathering leaching, and cavity filling and dissolution. The quality of volcanic reservoirs is changed accordingly: first im-proved by tectonic uplifting or weathering leaching, then deteriorated by cavity filling, and finally improved by dissolution.关键词
准噶尔盆地/车排子凸起/石炭系/火山岩储层/储层演化Key words
Junggar Basin/Chepaizi salient/Carboniferous/volcanic reservoirs/reservoirs evolution分类
能源科技引用本文复制引用
孟凡超,操应长,崔岩,许涛,刘子超,王艳忠..准噶尔盆地西缘车排子凸起石炭系火山岩储层成因[J].中国石油大学学报（自然科学版）,2016,40(5):22-31,10.基金项目
中央高校基本科研业务费专项(15CX05007A,15CX08001A) （15CX05007A,15CX08001A）
国家自然科学基金项目(41302102) （41302102）
山东省自然科学基金项目(ZR2012DL10) （ZR2012DL10）
