收稿日期: 2010-02-06
修回日期: 2010-04-18
网络出版日期: 2010-06-10
基金资助
国家油气重大专项项目(编号：2008ZX05008-003-04）资助.
Principal Controls on the Formation of Volcanic Reservoir (Carboniferous) in Luxi Area of Junggar Basin
Received date: 2010-02-06
Revised date: 2010-04-18
Online published: 2010-06-10
李小燕, 王琪, 史基安, 马晓峰, 郝乐伟, 张瑞, 王欢 . 准噶尔盆地陆西地区石炭系火山岩储层发育主控因素分析[J]. 天然气地球科学, 2010 , 21(3) : 449 -457 . DOI: 10.11764/j.issn.1672-1926.2010.03.449
By the observation of core and analysis of microscopic flakes and scanning electron microscope, the feature of the Carboniferous volcanic rocks in the Luxi district of Junggar basin was discussed, including volcanic lithology, pore type, oil and gas evidence, and diagenesis. The lithology of main volcanic reservoir in the study area is dominated by volcanic lava (basalt and andesite) and pyroclastic rocks (tuff and volcanic breccia). The pore type is dissolution pore and the secondary dissolution. The volcanic lava has a good oil and gas evidence.The volcanic reservoir become a good stored body only after weathering and leaching, fracture and dissolved reformation later. The laumontite filling in the study area would make a positive role of the formation of high quality reservoir. Finally, the pattern of porosity evolution for different types of volcanic rocks was setup.
Key words： Volcanic rocks; Reservoir space; Diagenesis; Laumontite; Geologic control.
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