Study on the Effect of an Alternate Injection Pattern of Proppant on Hydraulic Fracture Closure Morphology

In previous studies of the transportation of proppants within fractures and the morphology of proppant-supported fractures, researchers have generally treated the fractures as static and have overlooked the interactions between fractures and the proppant during the dynamic closure caused by filtrati...

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Bibliographic Details
Published in:Processes 2024-11, Vol.12 (11), p.2332
Main Authors: Wang, Xiang, Chen, Fuhu, Zhu, Xinchun, Fang, Yanjun, Hu, Aiguo, Nie, Fajian
Format: Article
Language:English
Subjects:
Deformation
Filtration
Fluid-structure interaction
Fluids
Hydraulic fracturing
Implicit methods
Injection
Investigations
Mathematical models
Morphology
Pattern analysis
Permeability
Propagation
Simulation
Viscosity
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Summary:In previous studies of the transportation of proppants within fractures and the morphology of proppant-supported fractures, researchers have generally treated the fractures as static and have overlooked the interactions between fractures and the proppant during the dynamic closure caused by filtration. To address this limitation, we propose a semi-implicit method to calculate the complete fluid–structure interaction equations for the fracture, fluid, and proppant. The results show that there are three types of closed fracture patterns formed by alternate proppant injection at the end of filtration loss, and the third pattern of fracture formed by injecting small particles first and then large particles has the best support length and filling effect. More effects of the particle size and injection pattern of the injected proppant on the fracture closure pattern after the end of filtration loss are shown graphically and analyzed in detail.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr12112332