Herein we discuss a laboratory study of inelastic deformation and localization was conducted to evaluate microseismicity and fracture in fluid-saturated rock. Plane strain compression experiments were performed on oil- and water-saturated Berea sandstone under dry, drained, undrained, and quasi-unjacketed conditions. Parameters associated with the elastic and inelastic material response were accurately measured and used in a constitutive model to predict localization of deformation under the drained and undrained conditions. Acoustic emission (AE) activity was recorded and the onset of inelastic response in fluid-saturated rock, similar to dry rock, coincided with an increase in AE rate. Fracture initiation and propagation were successfully monitored by AE locations. Clustering of AE events and the start of inhomogeneous deformation inferred from displacement measurements are shown to be well correlated with the model prediction of the onset of localized deformation under various rock-fluid interaction conditions.
Makhnenko, Roman Y., et al. "Localization of deformation in fluid-saturated sandstone." International Journal of Rock Mechanics and Mining Sciences, vol. 134, no. C, Aug. 2020. https://doi.org/10.1016/j.ijrmms.2020.104455
Makhnenko, Roman Y., Ge, Chunwei, & Labuz, Joseph F. (2020). Localization of deformation in fluid-saturated sandstone. International Journal of Rock Mechanics and Mining Sciences, 134(C). https://doi.org/10.1016/j.ijrmms.2020.104455
Makhnenko, Roman Y., Ge, Chunwei, and Labuz, Joseph F., "Localization of deformation in fluid-saturated sandstone," International Journal of Rock Mechanics and Mining Sciences 134, no. C (2020), https://doi.org/10.1016/j.ijrmms.2020.104455
@article{osti_1849098,
author = {Makhnenko, Roman Y. and Ge, Chunwei and Labuz, Joseph F.},
title = {Localization of deformation in fluid-saturated sandstone},
annote = {Herein we discuss a laboratory study of inelastic deformation and localization was conducted to evaluate microseismicity and fracture in fluid-saturated rock. Plane strain compression experiments were performed on oil- and water-saturated Berea sandstone under dry, drained, undrained, and quasi-unjacketed conditions. Parameters associated with the elastic and inelastic material response were accurately measured and used in a constitutive model to predict localization of deformation under the drained and undrained conditions. Acoustic emission (AE) activity was recorded and the onset of inelastic response in fluid-saturated rock, similar to dry rock, coincided with an increase in AE rate. Fracture initiation and propagation were successfully monitored by AE locations. Clustering of AE events and the start of inhomogeneous deformation inferred from displacement measurements are shown to be well correlated with the model prediction of the onset of localized deformation under various rock-fluid interaction conditions.},
doi = {10.1016/j.ijrmms.2020.104455},
url = {https://www.osti.gov/biblio/1849098},
journal = {International Journal of Rock Mechanics and Mining Sciences},
issn = {ISSN 1365-1609},
number = {C},
volume = {134},
place = {United States},
publisher = {Elsevier},
year = {2020},
month = {08}}
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0002020
OSTI ID:
1849098
Alternate ID(s):
OSTI ID: 1648186
Journal Information:
International Journal of Rock Mechanics and Mining Sciences, Journal Name: International Journal of Rock Mechanics and Mining Sciences Journal Issue: C Vol. 134; ISSN 1365-1609