煤田地质与勘探2016，Vol.44Issue(3)：51-56,6.DOI:10.3969/j.issn.1001-1986.2016.03.010
煤样三维渗透率应力敏感性试验研究
The experimental study on stress sensitivity of three dimensional permeability of coal
摘要
Abstract
At present, the research on 3D permeability test is in the initial stage in China. Based on the self-develo-ped 3D permeability tester for coal samples, we can simulate the three dimensional fluid flow through pores of coal samples under the triaxial stress. The experiments of stress sensitivity of the permeability of coal samples were conducted under triaxial stress. The study shows that the impact of horizontal maximum principle stress on perco-lation ability of coal samples is larger than horizontal minimum principle stress; the three dimensional permeability of coal samples is sensitive to the stress in different directions, the strong-to-weak sequence of sensitivity is: the vertical stress>horizontal maximum principle stress>horizontal minimum principle stress.关键词
煤样/三维/渗透率/应力敏感性Key words
coal sample/three dimensional/permeability/stress sensitivity分类
地质学引用本文复制引用
张羽,张遂安,杨立源,杜瑶,董银涛,张琴..煤样三维渗透率应力敏感性试验研究[J].煤田地质与勘探,2016,44(3):51-56,6.基金项目
国家科技重大专项项目(2011ZX05042)；山西省煤层气联合基金项目(2012012005)@@@@National Science and Technology Major Project(2011ZX05042)；Shanxi Provincial Basic Research Prgogram-Coal Bed Methane Joint Research Foundation(2012012005) （2011ZX05042）
