Directional Cooling-Induced Fracturing Westerly Granite Test Results

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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

TY - DATA AB - 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. AU - Nakagawa, Seiji DB - Geothermal Data Repository DP - Open EI | National Renewable Energy Laboratory DO - 10.15121/1780913 KW - geothermal KW - thermal cracking KW - acoustic emissions KW - temperature changes KW - laboratory experiment KW - Westerly granite KW - granite KW - moment tensor KW - fracture KW - seismic KW - geophysics KW - liquid nitrogen KW - thermal KW - temperature KW - stimulation KW - directional cooling KW - induced fracturing KW - directional cooling-induced fracturing KW - wellbore KW - stress KW - velocity KW - tomography KW - microcracking LA - English DA - 2020/12/18 PY - 2020 PB - Lawrence Berkeley National Laboratory T1 - Directional Cooling-Induced Fracturing Westerly Granite Test Results UR - https://doi.org/10.15121/1780913 ER -
Export Citation to RIS
Nakagawa, Seiji. Directional Cooling-Induced Fracturing Westerly Granite Test Results. Lawrence Berkeley National Laboratory, 18 December, 2020, Geothermal Data Repository. https://doi.org/10.15121/1780913.
Nakagawa, S. (2020). Directional Cooling-Induced Fracturing Westerly Granite Test Results. [Data set]. Geothermal Data Repository. Lawrence Berkeley National Laboratory. https://doi.org/10.15121/1780913
Nakagawa, Seiji. Directional Cooling-Induced Fracturing Westerly Granite Test Results. Lawrence Berkeley National Laboratory, December, 18, 2020. Distributed by Geothermal Data Repository. https://doi.org/10.15121/1780913
@misc{GDR_Dataset_1302, 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.}, url = {https://gdr.openei.org/submissions/1302}, year = {2020}, howpublished = {Geothermal Data Repository, Lawrence Berkeley National Laboratory, https://doi.org/10.15121/1780913}, note = {Accessed: 2025-05-05}, doi = {10.15121/1780913} }
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

Seiji Nakagawa

Lawrence Berkeley National Laboratory

DOE 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

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