Journal ArticleDOI
Hydraulic fracturing in granite under geothermal conditions
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TLDR
The experimental results have not demonstrated the occurrence of thermal fracturing, but they suggest that fluid injection at certain rates in situ may markedly increase local permeability, which could prove critical to increasing the efficiency of heat exchange for geothermal energy extraction from hot dry rock as mentioned in this paper.About:
This article is published in International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts.The article was published on 1980-02-01. It has received 52 citations till now. The article focuses on the topics: Hydraulic fracturing & Geothermal energy.read more
Citations
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Journal ArticleDOI
Fluid ascent through the solid lithosphere and its relation to earthquakes
Thomas Gold,Steven Soter +1 more
TL;DR: A growing fluid domain becomes so mobilized only when it attains the critical vertical dimension required for hydrostatic instability as mentioned in this paper, depending on the ultimate compressive yield strength of the rock, may be as much as several kilometers.
Book ChapterDOI
Microseismic Monitoring Developments in Hydraulic Fracture Stimulation
TL;DR: The last decade has seen a significantly increased interest in microseismic monitoring by the hydrocarbon industry due to the recent surge in unconventional resources such as shale gas and heavy-oil plays as discussed by the authors.
Journal ArticleDOI
Effect of Water Infiltration, Injection Rate and Anisotropy on Hydraulic Fracturing Behavior of Granite
TL;DR: In this article, the authors conducted hydraulic fracturing tests on Pocheon granite cylinders at seven different injection rates varying from 1 to 100mm3/s, and compared with sleeve fracturing tests in which borehole was sleeved, and therefore, water infiltration influence was excluded.
Journal ArticleDOI
Ultrasonic tomography and acoustic emission in hydraulically fractured Lac du Bonnet Grey granite
TL;DR: In this paper, ultrasonic tomography and acoustic emission (AE) data were obtained during laboratory hydraulic fracturing tests on two large, unconfined cylinders of Lac du Bonnet grey granite.
Journal ArticleDOI
Hydraulic fracturing and permeability enhancement in granite from subcritical/brittle to supercritical/ductile conditions
TL;DR: In this article, hydraulic fracturing experiments were conducted at 200-450°C by injecting water into cylindrical granite samples containing a borehole at an initial effective confining pressure of 40 MPa.
References
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Journal ArticleDOI
Permeability of granite under high pressure
TL;DR: In this article, the authors measured the porosity of Westerly granite as a function of effective pressure to 4 kb and found that porosity is correlated with the electrical resistivity of the granite.
Journal Article
The Permeability Of Porous Media To Liquids And Gases
TL;DR: The standard procedure for determining the permeability of porous media according to APZ Code No. 27 (first edition, October 1935) is based on the fundamental assumption that, as long as the rate of flow is proportional to the pressure gradient as mentioned in this paper.
Journal ArticleDOI
The effect of microcrack dilatancy on the permeability of westerly granite
Mark D. Zoback,James D. Byerlee +1 more
TL;DR: In this paper, the authors measured permeability and volumetric strain under constant confining pressure and pore pressure as a function of increasing and decreasing differential stress and found that dilatability increases appreciably during dilatancy.
Journal ArticleDOI
Laboratory hydraulic fracturing experiments in intact and pre-fractured rock
TL;DR: In this paper, the authors investigate the influence of pre-existing cracks on the orientation of generated fractures and propose a conceptual model to explain anomalously high breakdown pressures observed when fracturing with high viscosity fluids.