Evaluation of volcanic gas reservoir in Yingcheng formation of Block Shengshen2-1 of Northern Part of Songliao Basin

论文摘要

According to the thin sections of volcanic rocks, chemical composition analysis and log interpretation, and well data, it is determined that the volcanic rocks of Yingcheng Formation in Shengshen 2-1 block are mainly intermediate-acid volcanic lava and pyroclastic rocks. Through physical analysis of core samples, it is considered that Shengshen 2-1 block belongs to low-porosity and low-permeability reservoir. Microfracture-fracture is relatively developed in the compact section, and fracture is not developed in the porous section. Microfracture and reticular fracture can be seen in the thin section. Statistical analysis of porosity and density of volcanic reservoir shows that volcanic rock density below 2.53 can be used as reservoir. According to the relationship between reservoir space and gas content, the characteristics of volcanic lithology, lithofacies and reservoir space, the reservoir in this block can be divided into four types.

论文目录

• 1 Petrological characteristics
•   1.1 Rhyolite
•   1.2 Tuff
•   1.3 Volcanic breccias
• 2 Reservoir properties
• 3 Reservoir evaluation
•   3.1. Primary reservoir
•   3.2. Secondary reservoir
•   3.3. The 3rd reservoir
•   3.4. The 4th reservoir
• 4 conclusion

文章来源

类型: 国际会议

作者: ZHOU Yue,Wu Haibo

来源: 第四届能源与环境研究进展国际学术会议（ICAEER 2019） 2019-08-16

年度: 2019

分类: 基础科学,工程科技Ⅰ辑

专业: 地质学,石油天然气工业

单位: Exploration and Development Research Institute of Daqing Oil Field Co.Ltd

分类号: P618.13

页码: 863-866

总页数: 4

文件大小: 387k

下载量: 1