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Data Publication
Frictional healing data from direct shear slide-hold-slide experiments performed on simulated fault gouges from the Groningen gas field
Luuk Bernd Hunfeld
Utrecht University
(2020)
Descriptions
We investigated the frictional strength recovery (healing) and subsequent reactivation and slip-weakening behaviour of simulated fault gouges derived from key stratigraphic units in the seismogenic Groningen gas field (N.E. Netherlands). Direct-shear, Slide-Hold-Slide (SHS) experiments were performed at in-situ conditions of 100 °C, 40 MPa effective normal stress and 10-15 MPa pore fluid pressure (synthetic formation brine). Sheared gouges were allowed to heal for periods up to 100 days before subsequent re-shearing. The initial coefficient of (steady) sliding friction μ was highest in the Basal Zechstein caprock (μ=0.65±0.02) and Slochteren sandstone reservoir (μ=0.61±0.02) gouges, and the lowest in the Ten Boer claystone at the reservoir top (μ=0.38±0.01) and in the Carboniferous shale substrate (μ≈0.45). Healing and subsequent reactivation led to a marked increase (Δμ) in (static) friction coefficient of up to ~0.16 in Basal Zechstein and ~0.07 in Slochteren sandstone gouges for the longest hold periods investigated, followed by a sharp strength drop (up to ~25%) and slip-weakening trajectory. By contrast, the Ten Boer and Carboniferous gouges showed virtually no healing or strength drop. Healing rates in the Basal Zechstein and Slochteren sandstone gouges were significantly affected by the stiffness of different machines used, in line with the Ruina slip law, and with a microphysical model for gouge healing. Our results point to marked stratigraphic variation in healed frictional strength and healing rate of faults in the Groningen system, and high seismogenic potential of healed faults cutting the reservoir and Basal Zechstein caprock units, upon reactivation. The data is provided in a folder with 19 subfolders for 19 experiments/samples. Detailed information about the files in these subfolders as well as information on how the data is processed is given in the explanatory file Hunfeld_et_al_2020_Data_Explanation.pdf. Contact person is Luuk Hunfeld - PhD student - l.b.hunfeld@uu.nl
Keywords
Originally assigned keywords
FOS: Earth and related environmental sciences
Frictional properties
Fault healing
Simulated fault gouge
Groningen gas field
Induced seismicity
Fault reactivation
Slide-Hold-Slide
Triaxial
Powder mixture
Fault_related_material
Friction
Friction > Imposed Stress
Friction > Imposed Slip
Strain gauge > Axial straun gauge
Thermocouple
EPOS
multi-scale laboratories
rock and melt physical properties
Corresponding MSL vocabulary keywords
friction - controlled slip rate
friction - controlled slip rate
frictional strength recovery
frictional strength recovery
simulated fault gouge
induced seismicity
tectonic fault
reactivation friction coefficient
reactivation friction coefficient
friction coefficient
frictional deformation
friction coefficient
thermometer
MSL enriched keywords
Measured property
friction - controlled slip rate
Measured property
friction - controlled slip rate
friction coefficient
frictional strength recovery
friction coefficient
frictional strength recovery
fault rock
fault gouge
simulated fault gouge
induced seismicity
tectonic deformation structure
tectonic fault
reactivation friction coefficient
reactivation friction coefficient
Inferred deformation behavior
deformation behaviour
frictional deformation
Ancillary equipment
measurement of temperature
thermometer
Apparatus
deformation testing
shear testing
conventional triaxial apparatus: direct shear
subsurface energy production
hydrocarbon energy production
gas field
sedimentary rock
mudstone
claystone
shale
sandstone
wacke
Slochteren sandstone
evaporite
gypsum or anhydrite
Basal Zechstein
liquid phase
salt brine
pore fluid pressure
frictional strength
frictional strength recovery
pore fluid pressure
Phanerozoic
Paleozoic
Carboniferous
Metadata
MSL enriched sub domains
rock and melt physics
analogue modelling of geologic processes
Resource Type
Source publisher
| Utrecht University |
DOI
| 10.24416/uu01-rhtsv4 |
Creators
| Luuk Bernd Hunfeld |
| Personal |
| Utrecht University |
Contributors
| Hunfeld, Luuk Bernd |
| Personal |
| Utrecht University |
| Hunfeld, Luuk Bernd |
| Personal |
| Utrecht University |
| Chen, Jianye |
| Personal |
| Utrecht University | Technical University of Delft |
| Hol, Sander |
| Personal |
| Shell Global Solutions International B.V. |
| Niemeijer, André Rik |
| Personal |
| Utrecht University |
| Spiers, Christopher James |
| Personal |
| Utrecht University |
| Experimental rock deformation/HPT-Lab (Utrecht University, The Netherlands) |
| Personal |
| Utrecht University |
Citation
Hunfeld, L. B. (2020). Frictional healing data from direct shear slide-hold-slide experiments performed on simulated fault gouges from the Groningen gas field. Utrecht University. https://doi.org/10.24416/UU01-RHTSV4
Dates
| Issued | 2020-04-17T21:24:09 |
| Updated | 2024-07-12T11:07:36 |
Language
en
Funding References
| Funder Name | Nederlandse Aardolie Maatschappij B.V. (NAM) |
| Funder Name | European Research Council - SEISMIC |
| Funder Name | Netherlands Organization for Scientific Research (NWO) - VIDI |
Rights
| Name | Open - freely retrievable |
| URI | info:eu-repo/semantics/openAccess |
| Name | Creative Commons Attribution 4.0 International |
| URI | https://creativecommons.org/licenses/by/4.0/legalcode |
| Identifier | cc-by-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
Locations
Geo location(s)
Stedum 1 (SDM-1) wells - Groningen
Zeerijp 2 (ZRP-2) wells - Groningen