@article{TONG2025, 
author = {Shaokai TONG and Yanfang YUE and Wenqi MENG and Zhichang CHEN and Zhiguo WANG},
title = {Proppant placement behavior in nano-modified VES fracturing fluids considering wall Filtration loss},
year = {2025},
journal = {Journal of Chongqing University},
volume = {48},
number = {11},
pages = {119-132},
keywords = {proppant transport behaviour, wall filtration loss, Cross constitute equation, sand transport and migration, numerical simulation},
url = {https://www.sciopen.com/article/10.11835/j.issn.1000-582X.2025.11.010},
doi = {10.11835/j.issn.1000-582X.2025.11.010},
abstract = {The transport and placement of proppant within fractures in the process of hydraulic fracturing significantly impact oilfield productivity. In this study, by using the Cross constitutive equation and the Eulerian-granular multiphase flow model, we conducted numerical simulations of sand-carrying flow within fractures with considering fluid filtration loss along the fracture wall. The model was experimentally validated using a custom-designed fracture test facility. The results indicate that, for Cross fluid, an increase in wall filtration loss rate leads to a gradual reduction in the volume fraction of proppant within the fracture, accompanied by a decrease in sand bank height although the overall difference is small. This study further confirms that considering wall filtration, the use of small-particle-size, low-density proppants significantly enhances their placement efficiency at the distal end of fractures and reduce the risk of sand blockage.}
}