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:2018,
author = {Yildirim, B and Cao, W and Durucan, S and Korre, A and Wolf, KH and Bakker, R and Barnhoorn, A},
publisher = {American Rock Mechanics Association.},
title = {The effect of natural fracture heterogeneity on hydraulic fracture performance and seismic response in shale and coal formations},
url = {http://hdl.handle.net/10044/1/75027},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Two 0.3 m × 0.3 m × 0.3 m cubic blocks of shale and coal were used for hydraulic fracturing experiments under true tri-axial stress conditions. The shale block used was highly homogeneous and without visible fractures, while the coal block contained a host of natural fractures. The mechanical and hydraulic properties of both rocks were characterized through multi-stage triaxial tests, Brazilian disk tests, and porosity and permeability measurements. A true tri-axial rock testing machine equipped with loading, pump and acoustic systems was used in the experiment. The acoustic system uses 48 transducers with active sources to repetitively generate and receive ultrasonic P/S wave pulses to reveal fracture initiation and growth. Before the experiment, initial seismic response of both blocks was recorded under hydrostatic stress conditions to characterize anisotropy and heterogeneity of the blocks as reference. Silicon oil was injected centrally into both blocks to create a hydrofracture under deviatoric stress conditions and the load, displacement, pump pressure and volume, and seismic response during the injection process were recorded. Results from two blocks are being compared in terms of hydrofracture geometry and seismic features.
AU  - Yildirim,B
AU  - Cao,W
AU  - Durucan,S
AU  - Korre,A
AU  - Wolf,KH
AU  - Bakker,R
AU  - Barnhoorn,A
PB  - American Rock Mechanics Association.
PY  - 2018///
TI  - The effect of natural fracture heterogeneity on hydraulic fracture performance and seismic response in shale and coal formations
UR  - http://hdl.handle.net/10044/1/75027
ER  -
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