On the coarse-scale residual opening of hydraulic fractures created using the Channel Fracturing technique
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(Published version)
Date
2018
Authors
Luong, H.
Khanna, A.
Kotooussov, A.
Rose, F.
Editors
Dyskin, A.
Pasternak, E.
Pasternak, E.
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Conference paper
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Advances in mechanics: failure, deformation, fatigue, waves and monitoring: Proceedings of The 11th International Conference on Structural Integrity and Failure, 2018 / Dyskin, A., Pasternak, E. (ed./s), pp.95-100
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Hao Luong, Aditya Khanna, Andrei Kotousov, Francis Rose
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The 11th International Conference on Structural Integrity and Failure (3 Dec 2018 - 6 Dec 2018 : Perth, WA)
Abstract
Channel fracturing is a novel technique utilised to achieve discontinuous placement of proppant within a hydraulic fracture and create a network of open channels or voids between the proppant-filled regions (proppant columns), which can significantly increase the conductivity of the fracture. The problem of deformation and fluid flow in a partially-filled fracture involves two length scales: a large scale comparable to the length of the fracture ~O(10²) m and a fine scale comparable to the length of the proppant filled regions or ‘columns’ ~ O(1) m. In this paper, a homogenisation procedure is developed to obtain the residual opening profile and effective fracture conductivity at the large scale from the solution of a ‘unit-cell’ problem at the fine scale. The application of the model in a practical scenario is demonstrated by performing a mock numerical simulation
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© The Authors