Mechanical and microstructural data used in the article Pijnenburg et al., Deformation behaviour of sandstones from the seismogenic Groningen gas field: Role of inelastic versus elastic mechanisms

Cite as:

Pijnenburg, Ronald; Verberne, Berend; Hangx, Suzanne; Spiers, Christopher (2018): Mechanical and microstructural data used in the article Pijnenburg et al., Deformation behaviour of sandstones from the seismogenic Groningen gas field: Role of inelastic versus elastic mechanisms. GFZ Data Services. https://doi.org/10.5880/fidgeo.2018.005

Status

I N R E V I E W : Pijnenburg, Ronald; Verberne, Berend; Hangx, Suzanne; Spiers, Christopher (2018): Mechanical and microstructural data used in the article Pijnenburg et al., Deformation behaviour of sandstones from the seismogenic Groningen gas field: Role of inelastic versus elastic mechanisms. GFZ Data Services. https://doi.org/10.5880/fidgeo.2018.005

Abstract

Hydrocarbon or groundwater production from sandstone reservoirs can result in surface subsidence and induced seismicity. Subsidence results from combined elastic and inelastic compaction of the reservoir due to a change in the effective stress state upon fluid extraction. The magnitude of elastic compaction can be accurately described using poroelasticity theory. However inelastic or time-dependent compaction is poorly constrained. We use sandstones recovered by the field operator (NAM) from the Slochteren gas reservoir (Groningen, NE Netherlands) to study the importance of elastic versus inelastic deformation processes upon simulated pore pressure depletion. We conducted conventional triaxial tests under true in-situ conditions of pressure and temperature. To investigate the effect of applied differential stress (σ1 – σ3 = 0 - 50 MPa) and initial sample porosity (φi = 12 – 25%) on instantaneous and time-dependent inelastic deformation, we imposed multiple stages of axial loading and relaxation.

The obtained data include:
1) Mechanical data obtained in conventional triaxial compression experiments performed on reservoir sandstone. In these experiments, we imposed multiple stages of active loading, each followed by 24 hours of stress relaxation.
2) Microstructural data obtained on undeformed and deformed samples.

Authors

Pijnenburg, Ronald;Utrecht University, Utrecht, The Netherlands
Verberne, Berend;Utrecht University, Utrecht, The Netherlands
Hangx, Suzanne;Utrecht University, Utrecht, The Netherlands
Spiers, Christopher;Utrecht University, Utrecht, The Netherlands

Contact

Pijnenburg, Ronald (PhD candidate) ; Utrecht University, Utrecht, The Netherlands;

Contributors

Experimental rock deformation/HPT-Lab (Utrecht University, The Netherlands)

Keywords

Groningen gas field, reservoir, sandstone, compressibility, microstructure, strength, crack, creep, EPOS, multi-scale laboratories, rock and melt physical properties, Density, Elasticity, Strength, Viscosity, sand, sand_size_sediment, sediment, Strain gauge, Triaxial, Density, Elasticity, Strain gauge, Strength, Triaxial, Viscosity, sand, sand_size_sediment, sediment