Rheology of pig skin gelatine: Defining the elastic domain and its thermal and mechanical properties for geological analogue experiment applications

Otterloo, Jozua van; Cruden, Alexander

doi:10.1016/j.tecto.2016.06.019

Cited by 33 publications

(34 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pa) that are of the same order of, or may exceed, the uncertainties on our measures(van Otterloo & Cruden, 2016), and localised strain concentrations induced when removing and, especially, inserting the side plates. Conversely, rigidity layering is intentionally in-…”

mentioning

confidence: 72%

Stress Inversion in a Gelatin Box: Testing Eruptive Vent Location Forecasts With Analog Models

Mantiloni

Davis

Rojas

et al. 2021

Geophysical Research Letters

View full text Add to dashboard Cite

• We stress a gelatin block by excavating its surface and imposing lateral strain, then observe air-filled cracks trajectories • We numerically simulate the trajectories and retrieve the stress state of the gelatin, 10 then we forecast new crack arrivals at the surface 11 • Our strategy correctly retrieves the ratio between lateral extension and excava-12 tion depth and leads to effective forecasts of eruptive vents

show abstract

mentioning

confidence: 72%

Stress Inversion in a Gelatin Box: Testing Eruptive Vent Location Forecasts With Analog Models

Mantiloni

Davis

Rojas

et al. 2021

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…The maximum shear strength values of gelatine (823 -12,000 Pa at T = 5 °C, X = 1-4 wt. %) are one to two orders of magnitude higher than the LRD concentrations measured here (Van Otterloo and Cruden, 2016). Shear strain values corresponding to the peak strength of gelatine vary from 167 -127 % as concentrations increase from 1 -4 wt.% (Van Otterloo and Cruden, 2016), while the maximum peak strength shear strain values of the LRD concentrations measured here vary between 15 and 20 %.…”

Section: Comparison Of the Rheological Properties Of Laponite Rd And mentioning

confidence: 48%

“…where the storage modulus is the real part and the loss modulus is the imaginary part and the moduli are perpendicular vectors (Mezger 2006;van Otterloo and Cruden, 2016). The complex shear modulus can be obtained from (Mezger 2006):…”

Section: Viscoelastic Deformationmentioning

confidence: 99%

“…Aqueous dispersions of Laponite with different concentrations and ionic strengths have received much attention in the colloid and polymer sciences and their gel or glass-like behaviours (Bonn et al, 1999), surface chemistry, basic rheological properties (Morariu et al, 2009;Pek-Ing and Yee-Kwong, 2015), and colloidal phase behaviour (Cummins, 2007;Ruzicka and Zaccarelli, 2011;Mohanty and Joshi, 2016) are well characterised. LRD has several advantages as an elastic host rock analogue for laboratory modelling of magma transport and pressurized crack propagation compared to commonly used semitransparent pig skin gelatine (Kavanagh et al, 2013;Brizzi et al, 2016;van Otterloo and Cruden, 2016). LRD is a gel forming grade of Laponite that is fully transparent, regardless of concentration and sample age.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Laponite gels - visco-elasto-plastic analogues for geological laboratory modelling

Arachchige¹,

Cruden²,

Weinberg³

2021

Preprint

View full text Add to dashboard Cite

Laponite ® is a synthetic clay that, depending on concentration, temperature and curing time, forms a clear, transparent thixotropic fluid or brittle visco-elasto-plastic gel when mixed with water. Here we present the results of rheological and mechanical testing of gel-forming Laponite RD (LRD) to evaluate its suitability as a rock analogue in laboratory analogue experiments. Rheological tests of 2-4 wt. % concentrations of LRD in deionised water were carried out at temperatures between 20 and 50 °C, and after curing times of 3 to 14 days. Our results show that LRD gels change from a brittle, elastic-dominant, linear viscoelastic material to a plastic material as shear strain increases. The linear viscoelastic region occurs at shear strains, γ < 10 % after which the material yields and then undergoes strain hardening before a peak stress occurs at γ = 15-20 %. LRD then strain softens up to γ < 26.2 %, beyond which it behaves as a plastic material. Empirical equations are provided that predict increases in the Young's and complex shear moduli of LRD with increasing concentration and ageing time. LRD can be used to model elastic deformation when γ < 10 % at a shear strain rate of 0.1 s-1 and plastic deformation when γ > 26.2%. LRD is an ideal material for modelling the behaviour of rocks during the emplacement of magma and the propagation of brittle fractures in the upper crust. Its ease of preparation, low surface tension, full transparency, chemical and biological stability and photoelastic properties provide further advantages for analogue laboratory modelling compared to other frequently used visco-elastic gels, such as pig skin gelatine.

show abstract

“…The gelatin in the models is used with a concentration of 7% in ratio mass-volume, to simulate the rheological properties of the source and reservoir rocks, such as elasticity and toughness (Otterloo and Cruden, 2016;Di Giuseppe, 2009). Hence, the ratio of the density for the gelatin is:…”

Section: Scalingmentioning

confidence: 99%

Hydraulic fracturing considerations: Insights from analogue models, and its viability in Colombia

Martínez-Sánchez

Díaz

2019

Earth sci. res. j.

View full text Add to dashboard Cite

Fracking is being considered around the world as a potential method in the hydrocarbons extraction given the increase of production in USA and Canada during the last years with its implementation. The most criticized feature of the technique of fracking is the contamination of underground waters by fluids connected through the generated and/or pre-existing fractures. This work evaluates the viability of fracking in Colombian territory based in the study of the analogue models, considering the elastic properties of the reservoir rocks using gelatin, sand and clay that apply scaled pressure (lithostatic pressure to scale). The gelatin is used to simulate the reservoir zone, the clay will simulate one sail and the sand will simulate reservoir rocks of underground water. As a result seven different models were generated. There were simulated as 1) the anisotropy presence, 2) the rock sail presence, and 3) the injection groove of fluids in the pipeline. The completed models show that the required distance between the unconventional reservoir and underground waters to avoid contamination by fluids is ~200 m, also between the hydraulic fracturing point and the faults that connect with the shallows area is ~350 m, and it is suggested to study in detail the permeability of both: nearby faults and the rock sail. Two Colombian basins (Magdalena Midland Valley and Llanos) were taken as the main base to analyze the assessment of fracking according to the previously mentioned results, concluding that it is viable particularly in areas like Llanos Basin and with some precautions in similar zones to Magdalena Midland Valley Basin.

show abstract

Rheology of pig skin gelatine: Defining the elastic domain and its thermal and mechanical properties for geological analogue experiment applications

Cited by 33 publications

References 57 publications

Stress Inversion in a Gelatin Box: Testing Eruptive Vent Location Forecasts With Analog Models

Stress Inversion in a Gelatin Box: Testing Eruptive Vent Location Forecasts With Analog Models

Laponite gels - visco-elasto-plastic analogues for geological laboratory modelling

Hydraulic fracturing considerations: Insights from analogue models, and its viability in Colombia

Contact Info

Product

Resources

About