Citation:

PANGAEA.993253 (dataset in review)

Name: Ultrasonic velocity data for quartz sands during CO2-brine injection experiment
License: https://creativecommons.org/licenses/by/4.0/
Keywords: CO2 sequestration; feldspar alteration; Geochemistry; Geomechanics; rock physics; ultrasonic velocity

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Abstract:

Time-series measurements of ultrasonic P-wave and S-wave velocities from quartz sands obtained during cyclic CO2-brine injection. The measurements were conducted under high-pressure conditions using piezoelectric transducers and capture elastic property changes during repeated injection and hold periods. Velocity changes represent percentage changes relative to a reference velocity defined for each experiment. Velocity ratio difference represents the difference relative to a reference velocity ratio.

Keyword(s):

CO2 sequestration; feldspar alteration; Geochemistry; Geomechanics; rock physics; ultrasonic velocity

Supplement to:

Totani, Mark; Prasad, Manika (in prep.): Short-Term Mechanical and Elastic Responses of Feldspar Sands to CO2-Brine Injection.

Related to:

Totani, Mark; Prasad, Manika: Axial strain data for labradorite sands during brine injection experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993249

Totani, Mark; Prasad, Manika: Axial strain data for labradorite sands during CO2-brine injection experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993250

Totani, Mark; Prasad, Manika: Axial strain data for labradorite sands during CO2-brine injection experiment (repeat) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993251

Totani, Mark; Prasad, Manika: Axial strain data for quartz sands during CO2-brine injection experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993248

Totani, Mark; Prasad, Manika: SEM images of labradorite sands before and after fluid injection experiments [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993252

Totani, Mark; Prasad, Manika: Ultrasonic velocity data for labradorite sands during brine injection experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993254

Totani, Mark; Prasad, Manika: Ultrasonic velocity data for labradorite sands during CO2-brine injection experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993255

Coverage:

Latitude: 39.750000 * Longitude: -105.220000

Date/Time Start: 2025-11-27T06:47:24 * Date/Time End: 2025-12-01T06:42:04

Event(s):

Quartz_Labradorite_CSM * Latitude Start: 39.750000 * Longitude Start: -105.220000 * Latitude End: 39.750000 * Longitude End: -105.220000 * Date/Time Start: 2025-08-20T00:00:00 * Date/Time End: 2025-12-04T00:00:00 * Comment: Laboratory experiment with quartz and labradorite sands

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Totani, Mark
2	Type of study	Study type		Totani, Mark
3	DATE/TIME	Date/Time		Totani, Mark		Geocode
4	Sampling time	Sampling time	h	Totani, Mark		Since experiment start
5	Velocity, compressional wave	Vp	m/s	Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston
6	Velocity, shear wave	Vs	m/s	Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston
7	Velocity, compressional/shear wave ratio	Vp/Vs		Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston
8	Velocity, normalized	Vp norm	%	Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston
9	Velocity, shear wave, normalized	Vs norm	%	Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston
10	Velocity, compressional/shear wave ratio, difference	Vp/Vs ratio diff		Totani, Mark	Ultrasonic transducers, custom-built, with 1MHz Piezoelectric elements, Piezo-Optics Inc, Boston

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

4552 data points

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