摘要
数字岩心技术由于其高效、准确、无损化以及可视化等优势,为岩土工程领域的研究与工程应用提供了有力的技术支撑。然而,煤岩由于自身的非均质性,影响着工程应用在岩土工程领域应用的安全与稳定。为此,借助数字岩心技术来评估煤岩非均质性成为了当前的热点研究。基于此,本研究借助X-ray CT成像扫描技术,构建了鄂尔多斯烟煤的数字岩心,并提出了一种基于TCL编写语言的煤岩代表单元体的计算方法,降低了计算需求与成本;在此基础上,提出了煤岩非均质性评估的量化指标,揭示了煤岩孔隙结构的复杂性与非均质性。研究成果能够为煤岩储层评估及其相关领域的研究提供新的技术手段和理论依据。
Digital core technology provides strong technical support for research and engineering applications in the field of geotechnical engineering due to its advantages of high efficiency,accuracy,non-destructiveness and visualization.However,the non-homogeneity of coal rock affects the safety and stability of engineering applications in the field of geotechnical engineering.For this reason,it has become a hot research topic to evaluate the inhomogeneity of coal rock with the help of digital core technology.Based on this,this study constructed a digital core of Ordos bituminous coal with the help of X-ray CT imaging scanning technology,and proposed a calculation method of coal-rock representative units based on TCL writing language,which reduces the computational demand and cost;the quantitative indexes of coal-rock non-homogeneity assessment were proposed,which revealed the complexity of coal-rock pore structure and non-homogeneity.The research results can provide new technical means and theoretical basis for the evaluation of coal rock reservoirs and its related fields.
作者
康长豪
KANG Changhao(CCTEG Shenyang Research Institute Co.,Ltd.,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)
出处
《陕西煤炭》
2025年第5期77-81,共5页
Shaanxi Coal
基金
国家自然科学基金(52304212)。
关键词
X-ray
CT技术
数字岩心技术
代表单元体
等效孔隙网络模型
拓扑参数
X-ray CT technology
digital core technology
representative unit cell
equivalent pore network model
topological parameters
