EGS Collab - Hydraulic Fracturing Test Measurements on the 4100L of SURF

Dataset · Thu Aug 15 04:00:00 EDT 2019

DOI:https://doi.org/10.15121/1632298· OSTI ID:1632298

Ingraham, Mathew ^[1]

---

1. Sandia National Laboratories

This package includes data from two days of testing at the Sanford Underground Research Facility (SURF) on the 4100 level. The tests were performed in borehole TV4100 in the battery charging alcove south of the Yates shaft. TV4100 is a vertical borehole ~50 meters deep. A series of hydraulic fracture (mini-frac) and reopening tests were conducted at various depths to investigate the magnitude and direction of the minimum principal stress in that area of the mine. Apparent features of the pressure time/pressure injected volume curves are the onset of fracture, peak pressure, and the initial shut in pressure (ISIP). The raw data files include a Readme with the day, time, and location of each file. The files are organized into 9 columns: time (sec), flow meter (V), Pressure of Return (V), Pressure of Packer (V), Pressure of Injection (V), flow (gpm), Pressure of Return (psi), Pressure of Packer (psi), Pressure of Injection (psi). The shift reports are a short log of how the tests were run in the two-day period. An American Geophysical Union (AGU) 2019 presentation by Ingraham et al. is shown to provide visualization/interpretation of the data. The columns which report voltage (V) show the unscaled voltage value from the transducer, which was recorded in case pressure values needed to be rescaled due to incorrect calibration factors. This was not necessary. Results reported in the AGU poster were filtered with a moving average to remove pump noise before presentation. Note that the logging and impression packer results are included in separate datasets managed by Lawrence Berkeley Laboratory.

• Research Organization: DOE Geothermal Data Repository; Sandia National Laboratories
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
• Contributing Organization: Sandia National Laboratories
• OSTI ID: 1632298
• Report Number(s): 1212
• Availability: [e-mail]
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
4100L
Amphibolite
Black Hills
EGS
EGS Collab
ISIP
Rhyolite
SURF
Sanford Underground Research Facility
borehole
data
energy
experiment
flow
fracture
fracturing
geophysics
geothermal
heat flow
hydraulic
initial shut in pressure
injection
injection test
pressure
raw data
shift reports
stimulation
stress