Acoustic emission (AE) characteristics of limestone during heating

Xin, Yuan; Sun, Qiang; Jia, Hailiang; Yuan, Shihao; Ge, Zhenlong; Tang, Liyun

doi:10.1007/s10973-022-11519-w

Cited by 4 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the frequency is less than 10 kHz, the minerals affected by induced polarization are relatively singular, leading to a higher resistivity. However, when the frequency is higher than 10 kHz, the minerals are subject to more types of induced polarization (Zhdanov et al, 2018;Xin et al, 2022), resulting in a reduction in resistivity. This leads to a significant difference between mode A and mode B and the corresponding mineral composition proportions of sandstone.…”

Section: Discussionmentioning

confidence: 99%

Experimental study of the influence of saturation on the resistivity response of sandstone

He,

Zheng,

et al. 2024

Front. Earth Sci.

View full text Add to dashboard Cite

Studying the changes in electrical resistivity of sandstones under various frequencies and saturation levels is important for addressing many geological problems through electrical prospecting. In this study, we investigated the effect of different frequencies (500 Hz–200 kHz) and saturation levels (0%–100%) on the resistivity of sandstone in the Ordos region. Our research indicates that when the saturation level is low (<40%), the resistivity of the sandstone decreases rapidly. With the increase of saturation level, pore water gradually becomes another major factor affecting resistivity in addition to induced polarization effect. When the saturation level is high (>80%), the resistivity tends to stabilize. Additionally, the resistivity of sandstone decreases with the increase of saturation. Furthermore, with an increase in frequency, the rate of reduction in resistivity gradually slows down, and the resistivity of sandstone decreases under the influence of saturation. This study provides a valuable reference for the practical application of sandstone resistivity in geological prospecting.

show abstract

Section: Discussionmentioning

confidence: 99%