Propagation of Cryogenic Thermal Fractures from Unconfined PMMA Boreholes

Propagation of Cryogenic Thermal Fractures from Unconfined PMMA Boreholes

In cryogenic fracturing, a rock surface exposed to cryogenic fluids undergoes a large thermal gradient, and the resultant local tensile stress overcomes rock strength and initiates fractures. This study investigates the development of cracks generated from the cryogenic treatment of a borehole under...

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Bibliographic Details
Main Authors: Minsu Cha, Naif B. Alqahtani, Xiaolong Yin, Lei Wang, Bowen Yao, Timothy J. Kneafsey, Jennifer L. Miskimins, Yu-Shu Wu
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Energies
Subjects:
cryogenic fracturing
thermal fractures
liquid nitrogen
thermal shock
thermal stress
hydraulic fracturing
Online Access:https://www.mdpi.com/1996-1073/14/17/5433

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