The development of synthetic CIPS sandstones for geophysical research

Sherlock, Donald H.; Siggins, Anthony F.

doi:10.1071/aseg2003ab159

Cited by 6 publications

(3 citation statements)

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“…As a result, the amount of calcite cement is only found to generally improve the rock velocity and resistivity, while the quantitative improvement of the elastic and electrical rock properties with the calcite cement content remains far from being reveled through the use of natural sandstones. Unlike natural sandstones, the rock parameters can be easily controlled in artificial rocks, and therefore artificial sandstones have been widely employed for the understanding of the effects of petrophysical parameters on the elastic and electrical rock properties (Sherlock and Siggins, 2004;Ding et al, 2015;Si et al, 2016).…”

Section: Open Access Edited Bymentioning

confidence: 99%

“…These methods can be applied to making calcite-cemented artificial rocks that are with customized petrophysical and physical properties, closely resembling those of natural sandstones (Kucharski et al, 1997;Ismail et al, 2002a;Sherlock and Siggins, 2004;Yasuhara et al, 2012;Konstantinou et al, 2021). However, it can be difficult to control precisely the porosity, and the content and distribution of the calcite cement in the samples made using these methods.…”

Section: Open Access Edited Bymentioning

confidence: 99%

“…However, it can be difficult to control precisely the porosity, and the content and distribution of the calcite cement in the samples made using these methods. Accordingly, the difference in the rock porosity, which can be dominant in some physical rock properties like electrical resistivity, has usually been ignored in the experimental investigations of the variation of physical properties with cement content (Sherlock and Siggins, 2004). Moreover, the calcite cement in current artificial sandstones is generally less than 10%, whereas natural calcite-cemented sandstones usually contain a wider cement range between 5% and 30% (Morad, 2009;Zhao et al, 2014;Wang et al, 2015Wang et al, , 2016, making synthetic sandstones not representative of natural rocks.…”

Section: Open Access Edited Bymentioning

confidence: 99%

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Elastic and electrical properties of calcite-cemented artificial sandstones based on a new manufacturing method

Wang

Han²,

Fu³

2023

Front. Earth Sci.

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Calcite cement is widely existing in sandstones and can significantly affect the elastic and electrical properties of sandstones. Accordingly, understanding the effects of calcite cement on the elastic and electrical rock properties is of key importance for the accurate characterization of sandstone reservoirs through seismic and electromagnetic surveys. To obtain such knowledge, we design and implement dedicated laboratory experiments to investigate the effects of calcite cement and porosity on the P- and S-wave velocities and electrical resistivity of synthetic calcite-cemented sandstones made using a new recipe. The experimental results show that elastic velocities and electrical resistivity generally decrease with increasing porosity when the content of the calcite cement keeps constant, whereas the elastic and electrical rock properties exhibit complex variation with cement content in sandstones with approximately the same porosity. Analyses and interpretation of the experimental data indicate that the elastic and electrical rock properties are affected jointly by porosity, the content and distribution of the calcite cement, as well as the microstructure of the pore space resulting from the different axial stress employed for the consolidation of the rock samples. The results have revealed the mechanisms of how porosity and calcite cement affect the elastic and electrical properties of calcite-cemented sandstones, and provided a theoretical basis for the accurate characterization of sandstone reservoirs through seismic and electromagnetic surveys.

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Section: Open Access Edited Bymentioning

confidence: 99%