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Metadata Files

Data Publication

Friction and compaction data of simulated fault gouges derived from the Basal Zechstein caprock of the Groningen gas field

Luuk Bernd Hunfeld

Utrecht University

(2019)

Descriptions

We investigated the rate-and-state frictional properties of simulated anhydrite-carbonate faultspan> gouge derived from the Basal Zechstein caprock overlying the seismogenic Groningen gas reservoir in the NE Netherlands. Direct shear experiments were performed at in-situ conditions of 50-150 °C and 40 MPa effective normal stress, using sliding velocities of 0.1-10 µm/s. Reservoir pore fluid compositions were simulated using 4.4 Molar NaCl brine, as well as methane, air and brine/gas mixtures. Brine-saturated samples showed friction coefficients (µ) of 0.60-0.69, with little dependence on temperature, along with velocity-strengthening at 50-100 °C, transitioning to velocity-weakening at 120 °C and above. By contrast, gas-filled, evacuated and partially brine-saturated samples showed µ values of 0.72±0.02 plus strongly velocity-weakening behaviour accompanied by stick-slip at 100 °C (the only temperature investigated for gas-bearing and dry samples). A microphysical model for gouge friction, assuming competition between dilatant granular flow and thermally-activated compaction creep, captures the main trends seen in our brine-saturated samples but offers only a qualitative explanation for our gas-bearing and dry samples. Since the reservoir temperature is ~100 °C, our results imply that faults cross-cutting the Basal Zechstein caprock and juxtaposing the caprock against the reservoir sandstone may show strongly velocity-weakening behaviour, specifically in the gas-filled upper portion of the reservoir/caprock system. From a RSF point of view, these faults thus have an increased potential for nucleating seismogenic slip in comparison with faults in the underlying formations. The data is provided in a folder with 15 subfolders for 15 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-2019-Data-Description.pdf. Contact person is Luuk Hunfeld - PhD student - l.b.hunfeld@uu.nl

Keywords


Originally assigned keywords
Natural Sciences - Earth and related environmental sciences (1.5)
Frictional properties
Basal Zechstein
Induced seismicity
Groningen gas field
Anhydrite-carbonate fault gouge
Pore fluid composition
Triaxial -> Direct Shear
Powder Mixture
Friction -> Imposed Slip -> Rate-State
Internal Load Cell
EPOS
multi-scale laboratories
rock and melt physics properties

Corresponding MSL vocabulary keywords
friction - controlled slip rate
friction - controlled slip rate
Basal Zechstein
induced seismicity
pore fluid composition

MSL enriched keywords
Measured property
friction - controlled slip rate
Measured property
friction - controlled slip rate
sedimentary rock
evaporite
gypsum or anhydrite
Basal Zechstein
induced seismicity
coupled mechanical-chemical effects
pore fluid composition
fault rock
fault gouge
simulated fault gouge
friction coefficient
strain
Inferred deformation behavior
deformation behaviour
frictional deformation
friction coefficient
strain
subsurface energy production
hydrocarbon energy production
gas field
sandstone
minerals
carbonate minerals
sulfate minerals
anhydrite
liquid phase
salt brine
Apparatus
deformation testing
shear testing
conventional triaxial apparatus: direct shear
rate and state friction (RSF) parameters
microphysical deformation mechanism
intergranular slip
time-dependent mechanism
rate and state friction (RSF) parameters
tectonic deformation structure
tectonic fault
measured property
carbon (C)
methane

MSL enriched sub domains i

rock and melt physics
analogue modelling of geologic processes
geochemistry

Source

https://public.yoda.uu.nl/geo/UU01/PLO6JQ.html

Source publisher

Utrecht University


DOI

10.24416/uu01-plo6jq


Creators

Luuk Bernd Hunfeld

Utrecht University

Author identifier (Scopus):

57197828301

ORCID:

https://orcid.org/0000-0001-9250-414X


Contributors

Chen, Jianye

Researcher

Utrecht University

ORCID:

https://orcid.org/0000-0002-5973-5293

Author identifier (Scopus):

57206952249

Niemeijer, André Rik

Supervisor

Utrecht University

ORCID:

https://orcid.org/0000-0003-3983-9308

Author identifier (Scopus):

8731378600

Spiers, Christopher James

ProjectLeader

Utrecht University

ORCID:

https://orcid.org/0000-0002-3436-8941

Author identifier (Scopus):

7003318682

Pressure and Temperature Laboratory, High

HostingInstitution

Utrecht University

Hunfeld, Luuk Bernd

ContactPerson

Utrecht University

Author identifier (Scopus):

57197828301

ORCID:

https://orcid.org/0000-0001-9250-414X


Citation

Hunfeld, L. B. (2019). Friction and compaction data of simulated fault gouges derived from the Basal Zechstein caprock of the Groningen gas field. Utrecht University. https://doi.org/10.24416/UU01-PLO6JQ


Dates

Updated:

2024-07-12T11:07:15

Collected:

2015-01-01/2018-11-23


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 grant


Rights

Open - freely retrievable

Creative Commons Attribution 4.0 International Public License


Datacite version

1.0


Geo location(s)

53.34725832, 6.73938985

Location of the ZRP-2 well in the Groningen gas field