川东北地区须家河组气藏储层显微图像数据集  

A dataset of gas reservoir microscopic images in Xujiahe Formation in northeast Sichuan Basin

作　　者：杜欣岚 伊海生[1] DU Xinlan;YI Haisheng(Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,P.R.China;Southwest measurement and control Company of Sinopec Matrix Corporation,Chengdu 610100,P.R.China)

机构地区：[1]成都理工大学沉积地质研究院,成都610059 [2]中石化经纬有限公司西南测控公司,成都610100

出　　处：《中国科学数据（中英文网络版）》2023年第3期400-408,共9页China Scientific Data

摘　　要：四川盆地东北地区须家河组气藏具有良好的勘探开发潜力。本文收集和整理了研究区须家河组气藏碎屑岩储层的显微图像数据,以期对须家河组储层岩石学特征、成岩作用、储集空间和物性特征进行进一步研究。储层岩石类型主要为岩屑砂岩、岩屑长石砂岩和石英砂岩。储集空间可见粒间溶孔、剩余粒间溶孔、粒内溶孔、黏土矿物晶间(溶)孔及各种微裂缝。孔隙相对不发育,部分薄片(微)裂缝较为发育。经薄片下鉴定及观察,研究区须家河组砂岩储层主要经历了压实作用、胶结作用、溶蚀作用和构造破裂作用。本数据集的建立可为砂岩图像数据的对比分析和相关引用提供直接的途径,亦可作为智能识别岩性的标准。The gas reservoir in Xujiahe Formation in northeast Sichuan Basin holds promising potential for exploration and development.In this paper,we collected and sorted the microscopic image data of the clastic reservoir of Xujiahe Formation gas reservoir in the study area,so as to further study the petrological characteristics,diagenesis,reservoir space and physical properties of the region.The reservoir rocks are mainly lithic sandstone,lithic arkose sandstone and quartz sandstone.There are intergranular solution pores,residual intergranular solution pores,intragranular solution pores,clay mineral intergranular(solution)pores and various microfractures in the reservoir space.According to the observation of the cast thin section,the pores are relatively undeveloped,while some thin sections(micro-cracks)are relatively developed.Based on thin section identification and observation,the sandstone reservoirs of Xujiahe Formation in the study area have undergone processes such as compaction,cementation,dissolution and tectonic fracture.This dataset can provide a direct source for the comparative analysis and reference of sandstone image data.Moreover,it can serve as a benchmark for the intelligent identification of lithology.

关 键 词：川东北 须家河组 岩屑砂岩 成岩作用 

分 类 号：P618.13[天文地球—矿床学]