Experimental Investigation of Gas Transfer Properties and Stress Coupling Effects of Salt Rocks

Zhang, Dongmei; Skoczylas, Frédéric; Agostini, Franck; Jeannin, Laurent

doi:10.1007/s00603-020-02151-x

Cited by 22 publications

(9 citation statements)

References 121 publications

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“…However, the lack of data in Popp et al (2001) above 30 MPa hampers further analysis in this regard. Our results below 20 MPa also agree with the data reported by Zhang et al (2020) for the permeability of halite under isotropic loading.…”

Section: F I G U R Esupporting

confidence: 93%

“…A similar degree of unrecovered permeability in all samples, particularly below 20 MPa (dropping between 60% and 100%), suggests similar permanent structural changes affecting the fluid pathways. Our results agree with the degree of hysteresis exhibited by the few samples subjected to unloading in Popp et al (2001), both in terms of elastic properties and permeability, and with the degree of unrecovered permeability in Zhang et al (2020).…”

Section: F I G U R Esupporting

confidence: 87%

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Experimental study of geophysical and transport properties of salt rocks in the context of underground energy storage

Falcon‐Suarez,

Dale,

Marin‐Moreno

2024

Geophysical Prospecting

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Artificial caverns in salt rock formations play an important role in the net‐zero energy transition challenge, both for covering short‐term fluctuations in energy demand and serving as safe locations for long‐term underground gas storage both for hydrogen and natural gas. Geophysical tools can serve for monitoring geomechanical changes in the salt cavern during selection and development, and during gas storage/extraction activities, but the use of common geophysical monitoring techniques has been very limited in this area. Here, we present experimental work on physical and transport properties of halite rocks within the energy storage context and assess the potential of seismic and electromagnetic data to monitor gas storage activities in salt formations. First, we analysed the stress‐dependency of the elastic and transport properties of five halite rocks to improve our understanding on changes in the geological system during gas storage operations. Second, we conducted two dissolution tests, using cracked and intact halite samples, monitored with seismic (ultrasonic P‐ and S‐waves velocities and their attenuation factors) and electromagnetic (electrical resistivity) sources to evaluate (i) the use of these common geophysical sensing methods to remotely interpret caverning development and (ii) the effect of structural discontinuities on rock salt dissolution. Elastic properties and permeability showed an increasing trend towards rock sealing and mechanical enhancement with increasing pressure for permeabilities above 10−21 m2, with strong linear correlations up to 20 MPa. In the dissolution tests, the ultrasonic waves and electrical resistivity showed that the presence of small structural discontinuities largely impacts the dissolution patterns. Our results indicate that seismic and electromagnetic methods might help in the selection and monitoring of the caverning process and gas storage operations, contributing to the expected increase in demand of large‐scale underground hydrogen storage.

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Section: F I G U R Esupporting

confidence: 93%

Section: F I G U R Esupporting

confidence: 87%

Experimental study of geophysical and transport properties of salt rocks in the context of underground energy storage

Falcon‐Suarez,

Dale,

Marin‐Moreno

2024

Geophysical Prospecting

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“…Casas & Lowenstein, 1989; Kröhn et al., 2015, 2017; this study) and that pore fluid flow with permeabilities from 10 –11 to < 10 –21 m 2 can occur through them by cracks and/or dilatancy of grain boundaries (e.g. Popp et al., 2001; Urai et al., 2019; Zhang et al., 2020; this study). At basin scale, this laboratory observation suggests that, despite their low permeability, evaporites are able to transmit pore fluid pressure through them.…”

Section: Introductionmentioning

confidence: 65%

The Messinian Salinity Crisis as a trigger for high pore pressure development in the Western Mediterranean

et al. 2021

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“…As shown in Table 1, the seepage body used by domestic and foreign scholars for the research on the permeability properties of coal and rock is mainly gas, which mainly includes N 2 , CO 2 , H e , H 2 , A r, and CH 4 . [57][58][59] Among them, the Klinkenberg effect exists in the gas flow process of tight rock. 60 The denser the rock is, the more significant the Klinkenberg effect is.…”

Section: Seepage Bodymentioning

confidence: 99%

“…Fractal seepage model considering homogeneity and circuitous degree of internal cracks in rock and coal 58 …”

Section: Permeability Propertiesmentioning

confidence: 99%

The permeability properties of bedded coal and rock: Review and new insights

Song

Zhang

et al. 2022

Energy Science & Engineering

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It is beneficial to understand deeply the permeability properties of coal and rock for the stability control of mining engineering, underground engineering, oil and gas engineering, nuclear waste storage engineering, and so on. Therefore, new insights for the permeability properties of bedded coal and rock are summarized and proposed. (1) "Five guarantees" coring technology is worth for vigorous promotion and application. (2) The internal spatial fabric has the significant effect on the mechanical behavior evolution law of (bedded) coal and rock, but the effect is not dominant. (3) The permeability‐energy evolution models of (bedded) coal and rock should be constructed considering the idea of initial high in situ stress reduction, which is helpful for the energy visualization characterization of (bedded) coal and rock. Meanwhile, it can be combined with the structural evolution theory for in‐depth characterization and disclosure. (4) Researches on the permeability properties of (bedded) coal and rock under multi‐field or multi‐phase or phase‐field coupling conditions should be strengthened based on considering the initial damage produced and the distribution characteristics of in situ stress under the coring environment. (5) More accurate and scientific permeability evolution models of (bedded) coal and rock should be vigorously constructed based on the above insights.

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Experimental Investigation of Gas Transfer Properties and Stress Coupling Effects of Salt Rocks

Cited by 22 publications

References 121 publications

Experimental study of geophysical and transport properties of salt rocks in the context of underground energy storage

Experimental study of geophysical and transport properties of salt rocks in the context of underground energy storage

The Messinian Salinity Crisis as a trigger for high pore pressure development in the Western Mediterranean

The permeability properties of bedded coal and rock: Review and new insights

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