Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR028671 |
A Systematic Investigation into the Control of Roughness on the Flow Properties of 3D‐Printed Fractures | |
Tomos Phillips; Tom Bultreys; Kevin Bisdom; Niko Kampman; Stefanie Van Offenwert; Arjen Mascini; Veerle Cnudde; Andreas Busch | |
2021-03-30 | |
发表期刊 | Water Resources Research
![]() |
出版年 | 2021 |
英文摘要 | Heterogeneous fracture aperture distribution, dictated by surface roughness, mechanical rock and fracture properties, and effective stress, limits the predictive capabilities of many reservoir‐scale models that commonly assume smooth fracture walls. Numerous experimental studies have probed key hydromechanical responses in single fractures; however, many are constrained by difficulties associated with sample preparation and quantitative roughness characterisation. Here, we systematically examine the effect of roughness on fluid flow properties by 3D printing seven self‐affine fractures, each with controlled roughness distributions akin to those observed in nature. Photogrammetric microscopy was employed to validate the 3D topology of each printed fracture surface, enabling quantification using traditional roughness metrics, namely the Joint Roughness Coefficient (JRC). Core‐flooding experiments performed on each fracture across eight incremental confining pressure increases (11 to 25 bar), shows smoother fractures (JRC < 5.5) exhibit minor permeability variation, whilst rougher fractures (JRC > 7) show as much as a 219% permeability increase. Micro‐computed tomography imaging of the roughest fracture under varying effective stresses (5 to 13.8 bar), coupled with inspection into the degree of similarity between fracture closure behaviour in 3D‐printed and natural rock fractures, highlight the capabilities of 3D‐printed materials to act as useful analogues to natural rocks. Comparison of experimental data to existing empirical aperture‐permeability models demonstrates that fracture contact area is a better permeability predictor than roughness when the mechanical aperture is below ∼20 μm. Such findings are relevant for models incorporating the effects of heterogeneous aperture structures and applied stress to predict fracture flow in the deep subsurface. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/320972 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Tomos Phillips,Tom Bultreys,Kevin Bisdom,等. A Systematic Investigation into the Control of Roughness on the Flow Properties of 3D‐Printed Fractures[J]. Water Resources Research,2021. |
APA | Tomos Phillips.,Tom Bultreys.,Kevin Bisdom.,Niko Kampman.,Stefanie Van Offenwert.,...&Andreas Busch.(2021).A Systematic Investigation into the Control of Roughness on the Flow Properties of 3D‐Printed Fractures.Water Resources Research. |
MLA | Tomos Phillips,et al."A Systematic Investigation into the Control of Roughness on the Flow Properties of 3D‐Printed Fractures".Water Resources Research (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论