Title
Cavity Expansion and Fracture Propagation in Dunnville Sandstone
Abstract
Fracture initiation of a pressurized circular cavity in Dunnville Sandstone was observed using a cavity expansion apparatus and particle tracking technique called digital image correlation. Different far-field stress configurations were used to determine its effect on the fracture initiation and propagation. The results of the tests show fracture initiation as a percent of the borehole breakdown (peak) pressure was determined to decrease as the far-field stress increased. In addition, the crack opening displacement at the borehole wall measured at peak pressure increased as the far-field stress increased.
Description
Faculty Advisor: Joseph F. Labuz
Department of Civil, Environmental, and Geo-Engineering
College of Science and Engineering
Funding information
This research was supported by the Undergraduate Research Opportunities Program (UROP).
Suggested Citation
Sharpe, Jacob D.
(2015).
Cavity Expansion and Fracture Propagation in Dunnville Sandstone.
Retrieved from the University of Minnesota Digital Conservancy,
https://hdl.handle.net/11299/175633.