Directional Cooling-Induced Fracturing Westerly Granite Test Results
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on a short, cylindrical sample of Westerly granite (diameter = 4 inches, height ~ 2 inches). Liquid nitrogen was poured in a copper cup attached to the top of the sample, and the resulting acoustic emissions (AEs) and temperature changes on the surface of the sample were monitored. The obtained AEs were used to determine the microcracking source locations and amplitude, and the associated moment tensors. Included in this submission is an animation of the AEs, a graphic displaying the temperature changes, and the measured data.
Citation Formats
Lawrence Berkeley National Laboratory. (2020). Directional Cooling-Induced Fracturing Westerly Granite Test Results [data set]. Retrieved from https://dx.doi.org/10.15121/1780913.
Nakagawa, Seiji. Directional Cooling-Induced Fracturing Westerly Granite Test Results. United States: N.p., 18 Dec, 2020. Web. doi: 10.15121/1780913.
Nakagawa, Seiji. Directional Cooling-Induced Fracturing Westerly Granite Test Results. United States. https://dx.doi.org/10.15121/1780913
Nakagawa, Seiji. 2020. "Directional Cooling-Induced Fracturing Westerly Granite Test Results". United States. https://dx.doi.org/10.15121/1780913. https://gdr.openei.org/submissions/1302.
@div{oedi_4067, title = {Directional Cooling-Induced Fracturing Westerly Granite Test Results}, author = {Nakagawa, Seiji.}, abstractNote = {Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on a short, cylindrical sample of Westerly granite (diameter = 4 inches, height ~ 2 inches). Liquid nitrogen was poured in a copper cup attached to the top of the sample, and the resulting acoustic emissions (AEs) and temperature changes on the surface of the sample were monitored. The obtained AEs were used to determine the microcracking source locations and amplitude, and the associated moment tensors. Included in this submission is an animation of the AEs, a graphic displaying the temperature changes, and the measured data.}, doi = {10.15121/1780913}, url = {https://gdr.openei.org/submissions/1302}, journal = {}, number = , volume = , place = {United States}, year = {2020}, month = {12}}
https://dx.doi.org/10.15121/1780913
Details
Data from Dec 18, 2020
Last updated May 17, 2021
Submitted Apr 21, 2021
Organization
Lawrence Berkeley National Laboratory
Contact
Seiji Nakagawa
510.486.7894
Authors
Original Source
https://gdr.openei.org/submissions/1302Research Areas
Keywords
geothermal, thermal cracking, acoustic emissions, temperature changes, laboratory experiment, Westerly granite, granite, moment tensor, fracture, seismic, geophysics, liquid nitrogen, thermal, temperature, stimulation, directional cooling, induced fracturing, directional cooling-induced fracturing, wellbore, stress, velocity, tomography, microcrackingDOE Project Details
Project Name DEVELOPMENT OF A DIRECTIONAL COOLING INDUCED FRACTURING (DCIF) TECHNOLOGY FOR NEAR-WELLBORE STRESS ESTIMATION IN GEOTHERMAL RESERVOIRS
Project Lead Zachary Frone
Project Number EE0009033
