Imperial College London
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Anna Korre

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Environmental Engineering
 
 
 
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Contact

 

+44 (0)20 7594 7372a.korre Website

 
 
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Location

 

1.32BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Yildirim:2019,
author = {Yildirim, B and Durucan, S and Cao, W and Cai, W and Shi, J and Korre, A and Wolf, KH},
title = {Experimental and numerical investigation into hydraulic fracture and natural fracture interaction in shale formations},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Two 0.3 m × 0.3 m × 0.3 m shale blocks, one representing a homogeneous sample while the other representing a naturally fractured sample, are modelled using the lattice based DEM code, XSite. The synthetic rock mass approach (SRM), which assigns the smooth joint contacts (SJM) to the weakness planes, is used to represent the natural fractures in shale block-2. Firstly, the developed models are compared with the findings of previously conducted true-triaxial hydraulic fracturing experiments with acoustic measurements, and their subsequent computed tomography (CT) and seismic velocity tomography results. The 3D model results confirmed the curved shape hydraulic fractures, which propagated perpendicular to the minimum stress directions in both shale blocks. Model results also captured the natural fracture (NF) and hydraulic fracture (HF) interaction, particularly the arrest, the dilation of major NFs, followed by crossing with offset mechanism, in shale block-2. Secondly, the parametric studies are carried out to investigate the role of fluid flow rate (q), and fluid viscosity (µ) on different NF/HF interaction mechanisms. The effects of q and µ are discussed based on the total stimulated area including the tensile and shear microcracks, the pipe apertures, and the pressure evolutions within NFs.
AU  - Yildirim,B
AU  - Durucan,S
AU  - Cao,W
AU  - Cai,W
AU  - Shi,J
AU  - Korre,A
AU  - Wolf,KH
PY  - 2019///
TI  - Experimental and numerical investigation into hydraulic fracture and natural fracture interaction in shale formations
ER  -
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