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DCIF Westerly Granite AE Stress Effect Test (Task 3-1)

Jul 08, 2021
216.62 MB
Publicly accessible
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on rectangular Westerly granite blocks (width=depth=4.0", height=2.0"). Liquid nitrogen was poured in a small, 1"-diameter copper cup attached to the top of the sample, and the resulting acoustic emissions (A...
Authors
Nakagawa, S. and Trzeciak, M. Lawrence Berkeley National Laboratory
geothermalenergythermal fracturingstress measurementfracturingprocessed datageophysicsstress testinggranitewesterly granitestressmicrofracturefracturedatatemperatureacoustic emissionacoustic emission locationacoustic emission rate

DCIF (Directional Cooling-Induced Fracturing) Westerly Granite AE Borehole Damage Effect Test (Task 3-0)

Jan 27, 2022
162.51 MB
Publicly accessible
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on three rectangular Westerly granite blocks (width=depth=4.0", height=2.0") which were preheated to 200, 400, and 600 degree C to induce damage (microcracks) with varying degrees. Liquid nitrogen was poured...
Authors
Nakagawa, S. Lawrence Berkeley National Laboratory
geothermalenergydirectional cooling induced fracturingdcifdirectional cooling-induced fracturingdamage effect testfracturemicrocrackthermal stressacoustic emissionaccousticsthermal fracturefailure testraw dataprocessed datastressbiaxial stresswesterly graniteborehole damage effecttestwesterlygranite

Utah FORGE 1-2551: Development of a Multi-Stage Fracturing System and Wellbore Tractor 2024 Annual Workshop Presentation

Jan 13, 1970
44.1 MB
Publicly accessible
This is a presentation on the Development of a Multi-Stage Fracturing System and Wellbore Tractor by Colorado School of Mines, presented by William Fleckenstein. This video describes (1) the development and use of a low-cost and rapid multistage fracture stimulation technology wit...
Authors
Fleckenstein, W. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgecolorado school of minesfracture stimulationwell stimulationfracingmultistate fracture stimulationflow controlheat recovery improvementpacker eliminationegswelbore tractor

Utah FORGE 1-2551: Multi-Stage Fracturing System and Well Tractor to Enable Zonal Isolation During Stimulation and EGS Operations in Horizontal Wellbores 2023 Annual Workshop Presentation and Report

Sep 08, 2023
73.57 MB
Publicly accessible
Included here are a presentation recording, slides, and report on the Multi-Stage Fracturing System and Well Tractor to Enable Zonal Isolation During Stimulation and EGS Operations in Horizontal Wellbores project by Colorado School of Mines, presented by Dr. William W. Fleckenstei...
Authors
Fleckenstein, W. et al Colorado School of Mines
geothermalenergyannual workshop2023utah forgeegsstimulationheat-carrier fluidzonal isolationmultistage fracture stimulationinjectionflow controlhorizontal wellborestimulation technologylong-reach injectormulti-stage fracturing systemwell tractorreport