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Supporting Data: Laboratory Experiments Contrasting Growth of Uniformly and Nonuniformly-Spaced Hydraulic Fractures

Gunaydin, Delal and Bunger, Andrew (2020) Supporting Data: Laboratory Experiments Contrasting Growth of Uniformly and Nonuniformly-Spaced Hydraulic Fractures. [Dataset] (Submitted)

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Hydraulic fractures that grow simultaneously and in close proximity to one other interact via the stress disturbances they cause in the rock mass and via their competition with one another for fluid that is injected at a constant nominal rate to the wellbore. This situation can lead to dominance of some fractures and suppression of others. It is ubiquitously encountered in stimulation of horizontal wells in the petroleum industry and it also bears possible relevance to emplacement of multiple laterally-propagating swarms of magma-driven dykes. Motivated by a need to validate mechanical models, this paper focuses on laboratory experiments on the behavior of multiple, simultaneously growing hydraulic fractures. The experiments entail the propagation of both uniformly and nonuniformly spaced hydraulic fractures by injection of glucose or glycerin-based solutions into transparent ( polymethyl methacrylate) blocks, thus enabling growth of each fracture to be measured by analyzing image data. The experimental results confirm the suppression of inner fractures because of stress shadowing when the spacing between the simultaneously growing multiple fractures are uniform. These experiments also give first laboratory evidence of a model-predicted behavior wherein certain nonuniform fracture spacings result drastic increases in the uniformity of growth of all fractures within the array.


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Item Type: Dataset
Status: Submitted
CreatorsEmailPitt UsernameORCID
Gunaydin, Delaldeg90@pitt.edudeg90
Bunger, Andrewbunger@pitt.edubunger0000-0002-0696-7066
Date: 2020
Schools and Programs: Swanson School of Engineering > Civil and Environmental Engineering
Type of Data: Database
Copyright Holders: Delal Gunaydin, Andrew Bunger
Date Deposited: 30 Apr 2020 19:38
Last Modified: 30 Apr 2020 19:38

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