中国石油大学学报（自然科学版）2016，Vol.40Issue(2)：1-12,12.DOI:10.3969/j.issn.1673-5005.2016.02.001
一准噶尔盆地西北缘二叠系佳木河组火山岩有效储层特征与定量评价
Characteristics and quantitative evaluation of volcanic effective reservoir in Jiamuhe Formation of Permian, northwestern margin of Junggar Basin
摘要
Abstract
Based on a comprehensive analysis of geological, well-logging and production data, this paper summarized the characteristics of volcanic effective reservoir of Permian Jiamuhe Formation in Jinlong2 area, the northwestern margin of Jung-gar Basin. The lithology of volcanic effective reservoir mainly includes andesitic ( welded) breccia, andesitic/basaltic brecci-ated lava and andesite. The reservoir spaces are mainly composed of stomata and dissolution pore, followed by intercrystalline pore and intergranular pore. The volcanic reservoir is totally characterized by low-medium porosity and low-extra low permea-bility. Using capillary pressure curves which represent different types of volcanic rock, it can be shown that the characteris-tics of the microscopic pore throat in effective reservoirs mainly express in fine pore type with unimodal coarse state, partial coarse state and bimodal partial coarse state. Based on the analysis and evaluation of macroscopic physical characteristics as well as microscopic pore structure, this paper further optimizes K-means clustering analysis method and typical Fisher dis-criminant method to set up quantitative classification and evaluation criteria and discriminant functions, which divide the vol-canic effective reservoir into three types accordingly. This quantitative evaluation classification method was applied to the de-velopment test area, and yielded remarkable results. The method may provide strong technical supports for the efficient de-velopment of volcanic reservoir.关键词
准噶尔盆地/金龙2井区/火山岩/有效储层/分类评价Key words
Junggar Basin/Jinlong2 area/volcanic/effective reservoir/classification and evaluation分类
能源科技引用本文复制引用
何辉,李顺明,孔垂显,蒋庆平,周体尧,贾俊飞,杜宜静..一准噶尔盆地西北缘二叠系佳木河组火山岩有效储层特征与定量评价[J].中国石油大学学报（自然科学版）,2016,40(2):1-12,12.基金项目
国家科技重大专项(2011ZX05010-001) （2011ZX05010-001）
