化工矿物与加工2025，Vol.54Issue(5)：11-18,8.DOI:10.16283/j.cnki.hgkwyjg.2025.05.002
温度对清洁压裂液改造煤岩孔隙结构的影响
Effect of temperature on pore structure of coal modified by clean fracturing fluid
赵康 1刘红伟 1左少杰2
作者信息
- 1. 永贵能源开发有限责任公司 新田煤矿,贵州 毕节 551500
- 2. 贵州大学 矿业学院,贵州 贵阳 550025
- 折叠
摘要
Abstract
Clean fracturing fluid can effectively transform the micro-pore structure of coal.In order to explore the influence of clean fracturing fluid on the pore structure characteristics of coal at different temperatures,the coal samples of Xintian Coal Mine before and after soaking were tested and analyzed by high pressure mercury injection and scanning electron microscope.The results show that the pore composition of coal samples after the action of clean frac-turing fluid at different temperatures does not change much,mainly micropores and transition pores,and micropores account for about 60%of the total pore volume.The proportion of micropores in the specific surface area is the largest,about 90%.There are differences in the effect of clean fracturing fluid on the transformation of coal rock at different temperatures.Under the experimental conditions,the fracturing fluid at 50℃and 70℃has similar transfor-mation effect on coal samples,which is significantly better than the transformation effect at 30℃,which is about 15%and 18%higher than that at 30℃,respectively.In addition,the mercury removal efficiency increases with the increase of temperature,while the average pore size decreases gradually.The research results can provide reference for the application of clean fracturing fluid and the development of coal seam permeability enhancement technology.关键词
清洁压裂液/孔隙结构/分形维数/作用温度/孔容/平均孔径Key words
cleaning fracturing fluid/pore structure/fractal dimension/acting temperature/por volume/average aperture分类
矿山工程引用本文复制引用
赵康,刘红伟,左少杰..温度对清洁压裂液改造煤岩孔隙结构的影响[J].化工矿物与加工,2025,54(5):11-18,8.
